build,qt: Fix include path in CMake files

* lang/qt/src/Makefile.am (QGpgmeConfig.cmake, QGpgmeQt6Config.cmake): Use new variables includeprefix{5,6} instead of replaced variable includeprefix. -- GnuPG-bug-id: 7205
build,qt: Don't put generated camel-case headers in tarball
2024-07-22 10:32:00 +02:00 · 2024-07-18 16:16:33 +02:00 · 2024-07-18 15:51:44 +02:00 · 2024-07-18 14:42:30 +02:00 · 2024-07-18 14:41:52 +02:00 · 2024-07-18 14:41:32 +02:00
312 changed files with 5931 additions and 2366 deletions
--- a/148
+++ b/148
@ -1,18 +1,164 @@
-Noteworthy changes in version 1.23.0 (unreleased)
+Noteworthy changes in version 1.24.0 (unrelease)
+-------------------------------------------------
+
+ * Extended gpgme_op_decrypt* and gpgme_op_verify* to allow writing the
+   output directly to a file.  [T6550]
+
+ * Extended gpgme_op_encrypt*, gpgme_op_encrypt_sign*, and gpgme_op_sign*
+   to allow reading the input data directly from a file.  [T6550]
+
+ * Add information about designated revocation keys.  [T7118]
+
+ * New context flag "import-options".  [T7152]
+
+ * cpp: Provide information about designated revocation keys for a Key.
+   [T7118]
+
+ * cpp: Add safer member function returning text describing an error.
+   [T5960]
+
+ * qt: Build QGpgME for Qt 5 and Qt 6 simultaneously.  [T7205]
+
+ * qt: Install headers for Qt 5 and Qt 6 in separate folders.  [T7161]
+
+ * qt: Allow reading the data to decrypt/encrypt/sign/verify directly from
+   files.  [T6550]
+
+ * qt: Allow writing the decrypted/encrypted/signed/verified data directly
+   to files.  [T6550]
+
+ * qt: Allow specifying import options when importing keys.  [T7152]
+
+ * qt: Allow appending a detached signature to an existing file.  [T6867]
+
+ * Interface changes relative to the 1.23.2 release:
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ GPGME_ENCRYPT_FILE                      NEW.
+ GPGME_SIG_MODE_FILE                     NEW.
+ gpgme_key_t                             EXTENDED: New field 'revkeys'.
+ gpgme_revocation_key_t                  NEW.
+ gpgme_set_ctx_flag                      EXTENDED: New flag 'import-options'.
+ cpp: Context::EncryptFile               NEW.
+ cpp: SignatureMode::SignFile            NEW.
+ cpp: RevocationKey                      NEW.
+ cpp: Key::revocationKey                 NEW.
+ cpp: Key::numRevocationKeys             NEW.
+ cpp: Key::revocationKeys                NEW.
+ cpp: Error::asStdString                 NEW.
+ cpp: Error::asString                    DEPRECATED.
+ qt: DecryptVerifyJob::setInputFile      NEW.
+ qt: DecryptVerifyJob::inputFile         NEW.
+ qt: DecryptVerifyJob::setOutputFile     NEW.
+ qt: DecryptVerifyJob::outputFile        NEW.
+ qt: EncryptJob::setRecipients           NEW.
+ qt: EncryptJob::recipients              NEW.
+ qt: EncryptJob::setInputFile            NEW.
+ qt: EncryptJob::inputFile               NEW.
+ qt: EncryptJob::setOutputFile           NEW.
+ qt: EncryptJob::outputFile              NEW.
+ qt: EncryptJob::setEncryptionFlags      NEW.
+ qt: EncryptJob::encryptionFlags         NEW.
+ qt: SignEncryptJob::setSigners          NEW.
+ qt: SignEncryptJob::signers             NEW.
+ qt: SignEncryptJob::setRecipients       NEW.
+ qt: SignEncryptJob::recipients          NEW.
+ qt: SignEncryptJob::setInputFile        NEW.
+ qt: SignEncryptJob::inputFile           NEW.
+ qt: SignEncryptJob::setOutputFile       NEW.
+ qt: SignEncryptJob::outputFile          NEW.
+ qt: SignEncryptJob::setEncryptionFlags  NEW.
+ qt: SignEncryptJob::encryptionFlags     NEW.
+ qt: SignJob::setSigners                 NEW.
+ qt: SignJob::signers                    NEW.
+ qt: SignJob::setInputFile               NEW.
+ qt: SignJob::inputFile                  NEW.
+ qt: SignJob::setOutputFile              NEW.
+ qt: SignJob::outputFile                 NEW.
+ qt: SignJob::setSigningFlags            NEW.
+ qt: SignJob::signingFlags               NEW.
+ qt: SignJob::setAppendSignature         NEW.
+ qt: SignJob::appendSignatureEnabled     NEW.
+ qt: VerifyDetachedJob::setSignatureFile NEW.
+ qt: VerifyDetachedJob::signatureFile    NEW.
+ qt: VerifyDetachedJob::setSignedFile    NEW.
+ qt: VerifyDetachedJob::signedFile       NEW.
+ qt: VerifyOpaqueJob::setInputFile       NEW.
+ qt: VerifyOpaqueJob::inputFile          NEW.
+ qt: VerifyOpaqueJob::setOutputFile      NEW.
+ qt: VerifyOpaqueJob::outputFile         NEW.
+ qt: ImportJob::setImportOptions         NEW.
+ qt: ImportJob::importOptions            NEW.
+
+
+Noteworthy changes in version 1.23.2 (2023-11-28)
+-------------------------------------------------
+
+ * Preserve more specific existing failure code.  [T6575]
+
+ * qt: Start dirmngr with gpgconf to avoid multiple instances. [T6833]
+
+ * qt: On Windows, use UTF-8 when logging the error text.  [T5960]
+
+ * qt: Remove left-over partial files more persistently.  [T6584]
+
+ * qt: Use a temporary file name when creating signed or encrypted
+   archives. [T6721]
+
+ * qt: Build Qt 6 bindings with -fPIC if requested or Qt 6 was built with
+   this flag. [T6781]
+
+ Notes:
+ ~~~~~~
+ qt: DefaultKeyGenerationJob     DEPRECATED.
+
+ [c=C43/A32/R1 cpp=C26/A20/R1 qt=C20/A5/R1]
+
+ Release-info: https://dev.gnupg.org/T6782
+
+
+Noteworthy changes in version 1.23.1 (2023-10-27)
+-------------------------------------------------
+
+ * w32: Change gpgme-w32-spawn to use Unicode arguments.  [T6728]
+
+ [c=C43/A32/R0 cpp=C26/A20/R0 qt=C20/A5/R0]
+
+ Release-info: https://dev.gnupg.org/T6774
+
+
+Noteworthy changes in version 1.23.0 (2023-10-25)
 -------------------------------------------------

 * Support GPGME_ENCRYPT_ALWAYS_TRUST also for S/MIME.  [T6559]

 * New keylist mode GPGME_KEYLIST_MODE_WITH_V5FPR.  [T6705]

+ * New key capability flags has_*.  [T6748]
+
+ * gpgme-tool: Support use of Windows HANDLE.  [T6634]
+
 * qt: Support refreshing keys via WKD.  [T6672]

+ * qt: Handle cancel in changeexpiryjob.  [T6754]
+
 * Interface changes relative to the 1.22.0 release:
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 GPGME_KEYLIST_MODE_WITH_V5FPR   NEW.
+ gpgme_key_t                     EXTENDED: New field has_encrypt.
+ gpgme_key_t                     EXTENDED: New field has_sign.
+ gpgme_key_t                     EXTENDED: New field has_certify.
+ gpgme_key_t                     EXTENDED: New field has_authenticate.
+ cpp: Key::canCertify            NEW.
+ cpp: Key::canSign               NEW.
+ cpp: Key::canEncrypt            NEW.
+ cpp: Key::canAuthenticate       NEW.
 qt: Protocol::wkdRefreshJob     NEW.
 qt: WKDRefreshJob               NEW.

+ [c=C43/A32/R0 cpp=C26/A20/R0 qt=C20/A5/R0]
+
+ Release-info: https://dev.gnupg.org/T6774
+

 Noteworthy changes in version 1.22.0 (2023-08-21)
 -------------------------------------------------
--- a/6
+++ b/6
@ -41,11 +41,11 @@ See the file INSTALL for generic installation instructions.
 Check that you have unmodified sources.  See below on how to do this.
 Don't skip it - this is an important step!

-To build GPGME, you need to install libgpg-error (>= 1.24) and
+To build GPGME, you need to install libgpg-error (>= 1.36) and
 Libassuan (>= 2.4.2).

-For support of the OpenPGP and the CMS protocols, you should use the
-latest version of GnuPG (>= 2.1.18) , available at:
+For support of the OpenPGP and the CMS protocols, you should use at
+least GnuPG version 2.2.41 or 2.4.3, available at:
 https://gnupg.org/ftp/gcrypt/gnupg/.

 For building the Git version of GPGME please see the file README.GIT
--- a/build-aux/texinfo.tex
+++ b/build-aux/texinfo.tex
@ -482,7 +482,7 @@
 % \def\foo{\parsearg\Xfoo}
 % \def\Xfoo#1{...}
 %
-% Actually, I use \csname\string\foo\endcsname, ie. \\foo, as it is my
+% Actually, I use \csname\string\foo\endcsname, i.e. \\foo, as it is my
 % favourite TeX trick.  --kasal, 16nov03

 \def\parseargdef#1{%
--- a/configure.ac
+++ b/configure.ac
@ -31,7 +31,7 @@ min_automake_version="1.14"
 # for the LT versions.
 m4_define([mym4_package],[gpgme])
 m4_define([mym4_major], [1])
-m4_define([mym4_minor], [23])
+m4_define([mym4_minor], [24])
 m4_define([mym4_micro], [0])

 # Below is m4 magic to extract and compute the git revision number,
@ -53,20 +53,20 @@ AC_INIT([mym4_package],[mym4_version],[https://bugs.gnupg.org])
 #   (Interfaces added:			AGE++)
 #   (Interfaces removed:		AGE=0)
 #
-LIBGPGME_LT_CURRENT=42
-LIBGPGME_LT_AGE=31
-LIBGPGME_LT_REVISION=0
+LIBGPGME_LT_CURRENT=43
+LIBGPGME_LT_AGE=32
+LIBGPGME_LT_REVISION=1

 # If there is an ABI break in gpgmepp or qgpgme also bump the
 # version in IMPORTED_LOCATION in the GpgmeppConfig-w32.cmake.in.in

-LIBGPGMEPP_LT_CURRENT=25
-LIBGPGMEPP_LT_AGE=19
-LIBGPGMEPP_LT_REVISION=0
+LIBGPGMEPP_LT_CURRENT=26
+LIBGPGMEPP_LT_AGE=20
+LIBGPGMEPP_LT_REVISION=1

-LIBQGPGME_LT_CURRENT=19
-LIBQGPGME_LT_AGE=4
-LIBQGPGME_LT_REVISION=0
+LIBQGPGME_LT_CURRENT=20
+LIBQGPGME_LT_AGE=5
+LIBQGPGME_LT_REVISION=1
 ################################################

 AC_SUBST(LIBGPGME_LT_CURRENT)
@ -85,7 +85,7 @@ AC_SUBST(LIBQGPGME_LT_REVISION)
 GPGME_CONFIG_API_VERSION=1
 ##############################################

-NEED_GPG_ERROR_VERSION=1.36
+NEED_GPG_ERROR_VERSION=1.47
 NEED_LIBASSUAN_API=2
 NEED_LIBASSUAN_VERSION=2.4.2

@ -257,7 +257,7 @@ have_macos_system=no
 build_w32_glib=no
 build_w32_qt=no
 available_languages="cl cpp python qt qt5 qt6"
-default_languages="cl cpp python qt"
+default_languages="cl cpp python qt5 qt6"
 case "${host}" in
    x86_64-*mingw32*)
        have_w64_system=yes
@ -338,14 +338,44 @@ if test x$fixed_search_path != x ; then
                    [Locate binaries only via this PATH])
 fi

+# Option --enable-reduce-relocations
+#
+# Allow building the Qt 6 bindings explicitly with -fPIC if the automatic
+# detection fails. Note: We assume that this flag is always available (unless
+# we built for Windows).
+AC_ARG_ENABLE([reduce-relocations],
+              AS_HELP_STRING([--enable-reduce-relocations],
+                             [build Qt 6 bindings with -fPIC (default is
+                              auto)]),
+              [use_reduce_relocations="$enableval"],
+              [use_reduce_relocations=""])
+
+# Option --enable-no-direct-extern-access
+#
+# Some distributions build Qt 6 with -mno-direct-extern-access. Libraries and
+# applications using Qt then must also be build with this flag. As workaround
+# for a bug in Qt's pkgconfig files which don't have this flag we allow
+# building with this flag explicitly.
+AC_LANG_PUSH(C++)
+AX_CHECK_COMPILE_FLAG([-mno-direct-extern-access],
+                      [have_no_direct_extern_access="yes"],
+                      [have_no_direct_extern_access="no"],
+                      [-Werror])
+AC_LANG_POP()
+AC_ARG_ENABLE([no-direct-extern-access],
+              AS_HELP_STRING([--enable-no-direct-extern-access],
+                             [build Qt 6 bindings with
+                              -mno-direct-extern-access (default is auto)]),
+              [use_no_direct_extern_access="$enableval"],
+              [use_no_direct_extern_access=""])
+

 # Note: You need to declare all possible languages also in
 #       lang/Makefile.am's DIST_SUBDIRS.
 AC_ARG_ENABLE([languages],
              AS_HELP_STRING([--enable-languages=languages],
                             [enable only specific language bindings:
-                              cl cpp python qt qt5 qt6 (qt selects qt5 or qt6,
-                              and qt5 and qt6 exclude each other)]),
+                              cl cpp python qt5 qt6]),
                             [enabled_languages=`echo $enableval | \
                             tr ',:' '  ' | tr '[A-Z]' '[a-z]' | \
                             sed 's/c++/cpp/'`],
@ -371,76 +401,95 @@ for language in $enabled_languages; do
    fi
 done

-# Check whether Qt5 and/or Qt6 are enabled explicitly
-want_qt5="no";
+# Check whether qt5 and/or qt6 are enabled
+want_qt5="no"
 LIST_MEMBER("qt5", $enabled_languages)
 if test "$found" = "1"; then
-    want_qt5="yes";
+    if test "$explicit_languages" = "1"; then
+        want_qt5="yes"
+    else
+        want_qt5="maybe"
+    fi
    # Remove qt5; further down qt will be added
    enabled_languages=$(echo $enabled_languages | sed 's/qt5//')
 fi
-want_qt6="no";
+want_qt6="no"
 LIST_MEMBER("qt6", $enabled_languages)
 if test "$found" = "1"; then
-    want_qt6="yes";
+    if test "$explicit_languages" = "1"; then
+        want_qt6="yes"
+    else
+        want_qt6="maybe"
+    fi
    # Remove qt6; further down qt will be added
    enabled_languages=$(echo $enabled_languages | sed 's/qt6//')
 fi
-if test "$want_qt5" = "yes" -a "$want_qt6" = "yes"; then
-    AC_MSG_ERROR([[
+
+# Check whether qt is enabled; if yes then it has been enabled explicitly
+want_qt="no"
+LIST_MEMBER("qt", $enabled_languages)
+if test "$found" = "1"; then
+    # Ignore qt if specified together with qt5 or qt6
+    if test "$want_qt5" = "no" -a "$want_qt6" = "no"; then
+        want_qt="yes"
+    fi
+    # Remove qt
+    enabled_languages=$(echo $enabled_languages | sed 's/qt//')
+    AC_MSG_WARN([[
 ***
-*** The bindings for Qt5 and Qt6 cannot be built simultaneously.
+*** Language binding "qt" is deprecated and will be removed in a future version.
+*** Use "qt5" and/or "qt6" instead.
 ***]])
 fi

 # Ensure that pkg-config is available for all calls of FIND_QT5/FIND_QT6
 PKG_PROG_PKG_CONFIG

-# If the generic qt is enabled, then check for Qt5 or Qt6 (in this order)
-LIST_MEMBER("qt", $enabled_languages)
-if test "$found" = "1"; then
-    # Remove the generic qt (qt5 and qt6 have already been removed)
-    enabled_languages=$(echo $enabled_languages | sed 's/qt//')
+# Check for Qt 5 (if qt5 or qt is enabled)
+if test "$want_qt" = "yes"; then
+    want_qt5="maybe"
+fi
+if test "$want_qt5" != "no"; then
    FIND_QT5
    if test "$have_qt5_libs" = "yes"; then
-        want_qt5="yes";
-    else
-        FIND_QT6
-        if test "$have_qt6_libs" = "yes"; then
-            want_qt6="yes";
-        else
-            if test "$explicit_languages" = "1"; then
-                AC_MSG_ERROR([[
-***
-*** Qt5 (Qt5Core) or Qt6 (Qt6Core) is required for the Qt binding.
-***]])
-            else
-                AC_MSG_WARN([[
-***
-*** Qt5 (Qt5Core) and Qt6 (Qt6Core) not found. Qt Binding will be disabled.
-***]])
-            fi
-        fi
-    fi
-elif test "$want_qt5" = "yes"; then
-    FIND_QT5
-    if test "$have_qt5_libs" != "yes"; then
+        want_qt5="yes"
+    elif test "$want_qt5" = "yes"; then
        AC_MSG_ERROR([[
 ***
 *** Qt5 (Qt5Core) is required for the Qt 5 binding.
 ***]])
+    else
+        want_qt5="no"
    fi
-elif test "$want_qt6" = "yes"; then
+fi
+
+# Check for Qt 6 (if qt6 is enabled or if qt is enabled and Qt 5 wasn't found)
+if test "$want_qt" = "yes" -a "$have_qt5_libs" != "yes"; then
+    want_qt6="maybe"
+fi
+if test "$want_qt6" != "no"; then
    FIND_QT6
-    if test "$have_qt6_libs" != "yes"; then
+    if test "$have_qt6_libs" = "yes"; then
+        want_qt6="yes";
+    elif test "$want_qt6" = "yes"; then
        AC_MSG_ERROR([[
 ***
 *** Qt6 (Qt6Core) is required for the Qt 6 binding.
 ***]])
+    else
+        want_qt6="no"
    fi
 fi

-# Check that cpp is enabled if qt5 or qt6 is enabled
+# Check if any Qt was found (if qt is enabled)
+if test "$want_qt" = "yes" -a "$have_qt5_libs" != "yes" -a "$have_qt6_libs" != "yes"; then
+    AC_MSG_ERROR([[
+***
+*** Qt5 (Qt5Core) or Qt6 (Qt6Core) is required for the Qt bindings.
+***]])
+fi
+
+# Check that cpp is enabled if qt5 or qt6 is enabled and was found
 if test "$want_qt5" = "yes" -o "$want_qt6" = "yes"; then
    LIST_MEMBER("cpp", $enabled_languages)
    if test "$found" = "0"; then
@ -491,7 +540,7 @@ if test "$found" = "1" -a "$HAVE_CXX17" != "1"; then
    fi
 fi

-# Now append qt to the list of language bindings
+# Now append qt to the list of language bindings (to enable the subdir in lang)
 if test "$want_qt5" = "yes" -o "$want_qt6" = "yes"; then
    enabled_languages=$(echo $enabled_languages qt)
 fi
@ -559,8 +608,7 @@ if test "$found_py" = "1"; then
 	if test "$found_py" = "1" -o "$found_py3" = "1"; then
 	  # Reset everything, so that we can look for another Python.
          m4_foreach([mym4pythonver],
-                     [[2.7],[3.4],[3.5],[3.6],[3.7],[3.8],[3.9],[3.10],
-                      [3.11],[3.12],[all]],
+                     [[2.7],[3.6],[3.8],[3.9],[3.10],[3.11],[3.12],[all]],
           [unset PYTHON
 	    unset PYTHON_VERSION
 	    unset PYTHON_CPPFLAGS
@ -576,7 +624,7 @@ if test "$found_py" = "1"; then
 	    unset am_cv_python_pythondir
 	    unset am_cv_python_pyexecdir
 	    AM_PATH_PYTHON(mym4pythonver, [
-		AX_PYTHON_DEVEL
+		AX_PYTHON_DEVEL([], [true])
 		if test "$PYTHON_VERSION"; then
 			PYTHONS="$(echo $PYTHONS $PYTHON)"
 			PYTHON_VERSIONS="$(echo $PYTHON_VERSIONS $PYTHON_VERSION)"
@ -1115,7 +1163,9 @@ AC_CONFIG_FILES([lang/python/Makefile
 AC_CONFIG_FILES([lang/python/setup.py], [chmod a+x lang/python/setup.py])
 AC_OUTPUT

-if test "$want_qt5" = "yes"; then
+if test "$want_qt5" = "yes" -a "$want_qt6" = "yes"; then
+    enabled_languages_v=$(echo ${enabled_languages_v:-$enabled_languages} | sed "s/qt/qt (Qt 5, Qt 6)/")
+elif test "$want_qt5" = "yes"; then
    enabled_languages_v=$(echo ${enabled_languages_v:-$enabled_languages} | sed "s/qt/qt (Qt 5)/")
 elif test "$want_qt6" = "yes"; then
    enabled_languages_v=$(echo ${enabled_languages_v:-$enabled_languages} | sed "s/qt/qt (Qt 6)/")
--- a/doc/gpgme.texi
+++ b/doc/gpgme.texi
@ -551,7 +551,7 @@ convention for 32 bit Windows by using @code{long} there.
 and thus we are able to use @code{int64_t} instead of @code{off_t}
 there.  For easier migration the typedef @code{gpgme_off_t} has been
 defined.  The reason we cannot use @code{off_t} directly is that some
-toolchains (e.g. mingw64) introduce a POSIX compatible hack for
+toolchains (e.g., mingw64) introduce a POSIX compatible hack for
@code{off_t}.  Some widely used toolkits make use of this hack and in
 turn @acronym{GPGME} would need to use it also.  However, this would
 introduce an ABI break and existing software making use of libgpgme
@ -589,10 +589,16 @@ mode (@code{_LARGEFILE64_SOURCE}).
@cindex automake
@cindex autoconf

-It is much easier if you use GNU Automake instead of writing your own
-Makefiles.  If you do that you do not have to worry about finding and
-invoking the @command{pkg-config} script at all.  @acronym{GPGME}
-provides an extension to Automake that does all the work for you.
+You can simply use @code{PKG_CHECK_MODULES} macro with @command{pkg-config}:
+@example
+PKG_CHECK_MODULES([GPGME], [gpgme >= 1.23.1])
+@end example
+
+Alternatively, instead of using @command{pkg-config}, for building on
+an environment with no pkg-config, @acronym{GPGME} provides an
+extension to Automake that does all the work for you.  Please note
+that it is required to have gpgrt-config from libgpg-error installed
+in this case.

@c A simple macro for optional variables.
@macro ovar{varname}
@ -1304,8 +1310,8 @@ returned.

 The function @code{gpgme_pubkey_algo_string} is a convenience function
 to build and return an algorithm string in the same way GnuPG does
-(e.g. ``rsa2048'' or ``ed25519'').  The caller must free the result
-using @code{gpgme_free}.  On error (e.g. invalid argument or memory
+(e.g., ``rsa2048'' or ``ed25519'').  The caller must free the result
+using @code{gpgme_free}.  On error (e.g., invalid argument or memory
 exhausted), the function returns NULL and sets @code{ERRNO}.
@end deftypefun

@ -1795,7 +1801,7 @@ is used.

 On POSIX platforms the @code{gpgme_off_t} type is an alias for
@code{off_t}; it may be used interchangeable.  On Windows platforms
-@code{gpgme_off_t} is defined as a long (i.e. 32 bit) for 32 bit
+@code{gpgme_off_t} is defined as a long (i.e., 32 bit) for 32 bit
 Windows and as a 64 bit signed integer for 64 bit Windows.
@end deftp

@ -2231,7 +2237,7 @@ for a new data object.  The backend will try its best to detect the
 encoding automatically.

@item GPGME_DATA_ENCODING_BINARY
-This specifies that the data is encoding in binary form; i.e. there is
+This specifies that the data is encoding in binary form; i.e., there is
 no special encoding.

@item GPGME_DATA_ENCODING_BASE64
@ -2271,7 +2277,7 @@ characters percent escaped.  This mode is is not yet implemented.
@deftypefun gpgme_data_encoding_t gpgme_data_get_encoding (@w{gpgme_data_t @var{dh}})
 The function @code{gpgme_data_get_encoding} returns the encoding of
 the data object with the handle @var{dh}.  If @var{dh} is not a valid
-pointer (e.g. @code{NULL}) @code{GPGME_DATA_ENCODING_NONE} is
+pointer (e.g., @code{NULL}) @code{GPGME_DATA_ENCODING_NONE} is
 returned.
@end deftypefun

@ -2601,7 +2607,7 @@ addresses is not supported.

 The function @code{gpgme_set_sender} specifies the sender address for
 use in sign and verify operations.  @var{address} is expected to be
-the ``addr-spec'' part of an address but my also be a complete mailbox
+the ``addr-spec'' part of an address but may also be a complete mailbox
 address, in which case this function extracts the ``addr-spec'' from
 it.  Using @code{NULL} for @var{address} clears the sender address.

@ -2694,7 +2700,7 @@ for example completely disable the use of Dirmngr for any engine.

 For the CMS protocol the offline mode specifies whether Dirmngr shall
 be used to do additional validation that might require connecting
-external services (e.g. CRL / OCSP checks).  The offline mode is used
+external services (e.g., CRL / OCSP checks).  The offline mode is used
 for all operations on this context.  It has only an effect with
 GnuPG versions 2.1.6 or later.

@ -3273,6 +3279,12 @@ The string given in @var{value} is passed to the GnuPG engine to use as
 filter when importing keys.  Valid values are documented in the GnuPG
 manual and the gpg man page under the option @option{--import-filter}.

+@item "import-options"
+@since{1.24.0}
+The string given in @var{value} is passed to the GnuPG engine to use as
+options when importing keys.  Valid values are documented in the GnuPG
+manual and the gpg man page under the option @option{--import-options}.
+
@item "no-auto-check-trustdb"
@since{1.19.0}
 Setting the @var{value} to "1" forces the GPG backend to disable the
@ -3461,22 +3473,47 @@ listings if the key could not be validated due to missing
 certificates or unmatched policies.

@item unsigned int can_encrypt : 1
-This is true if the key (ie one of its subkeys) can be used for
-encryption.
+This is true if the key or one of its subkeys can be used for
+encryption and the encryption will likely succeed.

@item unsigned int can_sign : 1
-This is true if the key (ie one of its subkeys) can be used to create
-data signatures.
+This is true if the key or one of its subkeys can be used to create
+data signatures and the signing will likely succeed.

@item unsigned int can_certify : 1
-This is true if the key (ie one of its subkeys) can be used to create
+This is true if the key or one of its subkeys can be used to create
 key certificates.

@item unsigned int can_authenticate : 1
@since{0.4.5}

 This is true if the key (ie one of its subkeys) can be used for
-authentication.
+authentication and the authentication will likely succeed.
+
+@item unsigned int has_encrypt : 1
+@since{1.23.0}
+
+This is true if the key or one of its subkeys is capable of encryption.
+Note that this flag is set even if the key is expired.
+
+@item unsigned int has_sign : 1
+@since{1.23.0}
+
+This is true if the key or one of its subkeys is capable of signing.
+Note that this flag is set even if the key is expired.
+
+@item unsigned int has_certify : 1
+@since{1.23.0}
+
+This is true if the key or one of its subkeys is capable of
+certification.  Note that this flag is set even if the key is expired.
+
+@item unsigned int has_authenticate : 1
+@since{1.23.0}
+
+This is true if the key or one of its subkeys is capable of
+authentication.  Note that this flag is set even if the key is
+expired.

@item unsigned int is_qualified : 1
@since{1.1.0}
@ -3535,6 +3572,10 @@ be missing but this field may be set nevertheless.

 Reserved for the time of the last update of this key.

+@item gpgme_revocation_key_t revkeys
+@since{1.24.0}
+This is a linked list with the revocation keys for the key.
+
@end table
@end deftp

@ -3598,7 +3639,7 @@ Brainpool curve.

@item unsigned int secret : 1
 This is true if the subkey is a secret key.  Note that it will be
-false if the key is actually a stub key; i.e. a secret key operation
+false if the key is actually a stub key; i.e., a secret key operation
 is currently not possible (offline-key).  This is only set if a
 listing of secret keys has been requested or if
@code{GPGME_KEYLIST_MODE_WITH_SECRET} is active.
@ -3877,6 +3918,37 @@ This is a linked list with the notation data and policy URLs.
@end deftp


+@deftp {Data type} gpgme_revocation_key_t
+@since{1.24.0}
+
+The @code{gpgme_revocation_key_t} type is a pointer to a revocation key
+structure.  Revocation key structures are one component of a
+@code{gpgme_key_t} object.  They provide information about the designated
+revocation keys for a key.
+
+The revocation key structure has the following members:
+
+@table @code
+@item gpgme_revocation_key_t next
+This is a pointer to the next revocation key structure in the linked list,
+or @code{NULL} if this is the last element.
+
+@item gpgme_pubkey_algo_t pubkey_algo
+This is the public key algorithm of the revocation key.
+
+@item char *fpr
+This is the fingerprint of the revocation_key in hexadecimal digits.
+
+@item unsigned int key_class
+This is the class of the revocation key signature subpacket.
+
+@item unsigned int sensitive : 1
+This is true if the revocation key is marked as sensitive.
+
+@end table
+@end deftp
+
+

@node Listing Keys
@subsection Listing Keys
@ -4241,7 +4313,7 @@ GnuPG.
@var{userid} is commonly the mail address associated with the key.
 GPGME does not require a specific syntax but if more than a mail
 address is given, RFC-822 style format is suggested.  The value is
-expected to be in UTF-8 encoding (i.e. no IDN encoding for mail
+expected to be in UTF-8 encoding (i.e., no IDN encoding for mail
 addresses).  This is a required parameter.

@var{algo} specifies the algorithm for the new key (actually a keypair
@ -4324,6 +4396,14 @@ override this check.

 Request generation of keys that do not expire.

+@item GPGME_CREATE_ADSK
+@since{1.24.0}
+
+Add an ADSK to the key.  With this flag @var{algo} is expected to be
+the hexified fingerprint of the ADSK to be added; this must be a
+subkey.  If the string "default" is used for @var{algo} the engine
+will add all ADSK as it would do for new keys.
+
@end table

 After the operation completed successfully, information about the
@ -4399,6 +4479,10 @@ values for timestamps and thus can only encode dates up to the year
@var{flags} takes the same values as described above for
@code{gpgme_op_createkey}.

+If the @code{GPGME_CREATE_ADSK} flag is set, the subkey fingerprint
+given in the @code{algo} parameter is added as an ADSK
+to the key.
+
 After the operation completed successfully, information about the
 created key can be retrieved with @code{gpgme_op_genkey_result}.

@ -4450,7 +4534,7 @@ requires at least version 2.1.13 of GnuPG.
 the mail address to be associated with the key.  GPGME does not
 require a specific syntax but if more than a mail address is given,
 RFC-822 style format is suggested.  The value is expected to be in
-UTF-8 encoding (i.e. no IDN encoding for mail addresses).  This is a
+UTF-8 encoding (i.e., no IDN encoding for mail addresses).  This is a
 required parameter.

@var{flags} are currently not used and must be set to zero.
@ -4659,7 +4743,7 @@ retrieved with @code{gpgme_op_genkey_result}.

 The function returns the error code @code{GPG_ERR_NO_ERROR} if the
 operation could be started successfully, @code{GPG_ERR_INV_VALUE} if
-@var{parms} is not a well-formed string (e.g. does not have the
+@var{parms} is not a well-formed string (e.g., does not have the
 expected tag-like headers and footers), @code{GPG_ERR_NOT_SUPPORTED}
 if @var{public} or @var{secret} is not valid, and
@code{GPG_ERR_GENERAL} if no key was created by the backend.
@ -5122,7 +5206,7 @@ The function @code{gpgme_op_import_keys} adds the keys described by
 the @code{NULL} terminated array @var{keys} to the key ring of the
 crypto engine used by @var{ctx}.  It is used to actually import and
 make keys permanent which have been retrieved from an external source
-(i.e. using @code{GPGME_KEYLIST_MODE_EXTERN}) earlier.  The external
+(i.e., using @code{GPGME_KEYLIST_MODE_EXTERN}) earlier.  The external
 keylisting must have been made with the same context configuration (in
 particular the same home directory).  @footnote{Thus it is a
 replacement for the usual workaround of exporting and then importing a
@ -5132,7 +5216,7 @@ require another access to the keyserver over the network.
 Only keys of the currently selected protocol of @var{ctx} are
 considered for import.  Other keys specified by the @var{keys} are
 ignored.  As of now all considered keys must have been retrieved using
-the same method, i.e. the used key listing mode must be identical.
+the same method, i.e., the used key listing mode must be identical.

 After the operation completed successfully, the result can be
 retrieved with @code{gpgme_op_import_result}.
@ -5204,7 +5288,7 @@ This is a pointer to the next status structure in the linked list, or

@item char *fpr
 This is the fingerprint of the key that was considered, or @code{NULL}
-if the fingerprint of the key is not known, e.g. because the key to
+if the fingerprint of the key is not known, e.g., because the key to
 import was encrypted and decryption failed.

@item gpgme_error_t result
@ -5352,16 +5436,19 @@ operation was started successfully, and @code{GPG_ERR_INV_VALUE} if
@var{ctx} or @var{key} is not a valid pointer.
@end deftypefun

-The following functions allow only to use one particular flag.
+The following functions allow only to use one particular flag.  Their
+use is thus deprecated.

@deftypefun gpgme_error_t gpgme_op_delete (@w{gpgme_ctx_t @var{ctx}}, @w{const gpgme_key_t @var{key}}, @w{int @var{allow_secret}})
 Similar to @code{gpgme_op_delete_ext}, but only the flag
-@code{GPGME_DELETE_ALLOW_SECRET} can be provided.
+@code{GPGME_DELETE_ALLOW_SECRET} can be provided.  Actually all true
+values are mapped to this flag.
@end deftypefun

@deftypefun gpgme_error_t gpgme_op_delete_start (@w{gpgme_ctx_t @var{ctx}}, @w{const gpgme_key_t @var{key}}, @w{int @var{allow_secret}})
 Similar to @code{gpgme_op_delete_ext_start}, but only the flag
-@code{GPGME_DELETE_ALLOW_SECRET} can be provided.
+@code{GPGME_DELETE_ALLOW_SECRET} can be provided.  Actually all true
+values are mapped to this flag.
@end deftypefun


@ -5605,7 +5692,9 @@ An error code describing the reason why the key was found invalid.
 The function @code{gpgme_op_decrypt} decrypts the ciphertext in the
 data object @var{cipher} or, if a file name is set on the data object,
 the ciphertext stored in the corresponding file.  The decrypted
-ciphertext is stored into the data object @var{plain}.
+ciphertext is stored into the data object @var{plain} or written to
+the file set with @code{gpgme_data_set_file_name} for the data object
+@var{plain}.

 The function returns the error code @code{GPG_ERR_NO_ERROR} if the
 ciphertext could be decrypted successfully, @code{GPG_ERR_INV_VALUE}
@ -5821,7 +5910,9 @@ writable data object that will contain the plaintext after successful
 verification.  If a file name is set on the data object @var{sig} (or
 on the data object @var{signed_text}), then the data of the signature
 (resp. the data of the signed text) is not read from the data object
-but from the file with the given file name.
+but from the file with the given file name.  If a file name is set on
+the data object @var{plain} then the plaintext is not stored in the
+data object but it is written to a file with the given file name.

 The results of the individual signature verifications can be retrieved
 with @code{gpgme_op_verify_result}.
@ -6000,7 +6091,7 @@ The defined bits are:

  @item GPGME_SIGSUM_RED
  The signature is bad. It might be useful to check other bits and
-  display more information, i.e. a revoked certificate might not render a
+  display more information, i.e., a revoked certificate might not render a
  signature invalid when the message was received prior to the cause for
  the revocation.

@ -6246,7 +6337,7 @@ functions in GPGME and GnuPG:

 Return the mail address (called ``addr-spec'' in RFC-5322) from the
 string @var{uid} which is assumed to be a user id (called ``address''
-in RFC-5322).  All plain ASCII characters (i.e. those with bit 7
+in RFC-5322).  All plain ASCII characters (i.e., those with bit 7
 cleared) in the result are converted to lowercase.  Caller must free
 the result using @code{gpgme_free}.  Returns @code{NULL} if no valid
 address was found (in which case @code{ERRNO} is set to @code{EINVAL})
@ -6341,6 +6432,16 @@ A signed archive is created from the given files and directories.  This
 feature is currently only supported for the OpenPGP crypto engine and requires
 GnuPG 2.4.1.

+@item GPGME_SIG_MODE_FILE
+@since{1.24.0}
+
+The filename set with @code{gpgme_data_set_file_name} for the data object
+@var{plain} is passed to gpg, so that gpg reads the plaintext directly from
+this file instead of from the data object @var{plain}.  This flag can be
+combined with @code{GPGME_SIG_MODE_NORMAL}, @code{GPGME_SIG_MODE_DETACH},
+and @code{GPGME_SIG_MODE_CLEAR}, but not with @code{GPGME_SIG_MODE_ARCHIVE}.
+This feature is currently only supported for the OpenPGP crypto engine.
+
@end table
@end deftp

@ -6354,12 +6455,17 @@ if that is not set, by the encoding specified for @var{sig}), the text
 mode attributes set for the context @var{ctx} and the requested signature
 mode @var{mode}.

-If signature mode @code{GPGME_SIG_MODE_ARCHIVE} is requested, then a
+If the signature mode flag @code{GPGME_SIG_MODE_FILE} is set and a filename
+has been set with @code{gpgme_data_set_file_name} for the data object
+@var{plain}, then this filename is passed to gpg, so that gpg reads the
+plaintext directly from this file instead of from the data object @var{plain}.
+
+If signature mode @code{GPGME_SIG_MODE_ARCHIVE} is requested then a
 signed archive is created from the files and directories given as
-NUL-separated list in the data object @var{plain} and returned in the
-data object @var{sig}.  The paths of the files and directories have to
-be given as paths relative to the current working directory or relative
-to the base directory set with @code{gpgme_data_set_file_name}.
+NUL-separated list in the data object @var{plain}.  The paths of the files
+and directories have to be given as paths relative to the current working
+directory or relative to the base directory set with
+@code{gpgme_data_set_file_name} for the data object @var{plain}.

 After the operation completed successfully, the result can be
 retrieved with @code{gpgme_op_sign_result}.
@ -6532,14 +6638,21 @@ file set with @code{gpgme_data_set_file_name} for the data object
@var{cipher}.  The type of the ciphertext created is determined by the
@acronym{ASCII} armor (or, if that is not set, by the encoding specified
 for @var{cipher}) and the text mode attributes set for the context
-@var{ctx}.
+@var{ctx}.  If a filename has been set with @code{gpgme_data_set_file_name}
+for the data object @var{plain} then this filename is stored in the
+ciphertext.
+
+If the flag @code{GPGME_ENCRYPT_FILE} is set and a filename has been set
+with @code{gpgme_data_set_file_name} for the data object @var{plain},
+then this filename is passed to gpg, so that gpg reads the plaintext
+directly from this file instead of from the data object @var{plain}.

 If the flag @code{GPGME_ENCRYPT_ARCHIVE} is set, then an encrypted
 archive is created from the files and directories given as NUL-separated
-list in the data object @var{plain} and returned in the data object
-@var{cipher}.  The paths of the files and directories have to
-be given as paths relative to the current working directory or relative
-to the base directory set with @code{gpgme_data_set_file_name}.
+list in the data object @var{plain}.  The paths of the files and
+directories have to be given as paths relative to the current working
+directory or relative to the base directory set with
+@code{gpgme_data_set_file_name} for the data object @var{plain}.

@var{recp} must be a @code{NULL}-terminated array of keys.  The user
 must keep references for all keys during the whole duration of the
@ -6579,7 +6692,7 @@ may reveal information about the plaintext.
@item GPGME_ENCRYPT_PREPARE
@itemx GPGME_ENCRYPT_EXPECT_SIGN
 The @code{GPGME_ENCRYPT_PREPARE} symbol is used with the UI Server
-protocol to prepare an encryption (i.e. sending the
+protocol to prepare an encryption (i.e., sending the
@code{PREP_ENCRYPT} command).  With the
@code{GPGME_ENCRYPT_EXPECT_SIGN} symbol the UI Server is advised to
 also expect a sign command.
@ -6628,6 +6741,15 @@ NUL-separated list of file paths and directory paths that shall be
 encrypted into an archive.  This feature is currently only supported
 for the OpenPGP crypto engine and requires GnuPG 2.4.1.

+@item GPGME_ENCRYPT_FILE
+@since{1.24.0}
+
+The @code{GPGME_ENCRYPT_FILE} symbol specifies that the filename set
+with @code{gpgme_data_set_file_name} for the data object @var{plain}
+is passed to gpg, so that gpg reads the plaintext directly from this
+file instead of from the data object @var{plain}.  This feature is
+currently only supported for the OpenPGP crypto engine.
+
@end table

 If @code{GPG_ERR_UNUSABLE_PUBKEY} is returned, some recipients in
--- a/doc/texinfo.tex
+++ b/doc/texinfo.tex
@ -498,7 +498,7 @@
 % \def\foo{\parsearg\Xfoo}
 % \def\Xfoo#1{...}
 %
-% Actually, I use \csname\string\foo\endcsname, ie. \\foo, as it is my
+% Actually, I use \csname\string\foo\endcsname, i.e. \\foo, as it is my
 % favourite TeX trick.  --kasal, 16nov03

 \def\parseargdef#1{%
--- a/lang/cpp/src/Makefile.am
+++ b/lang/cpp/src/Makefile.am
@ -88,6 +88,14 @@ else
 libsuffix=.so
 endif

+copied_headers = $(gpgmepp_headers:%=gpgme++/%) $(interface_headers:%=gpgme++/%)
+
+$(copied_headers): Makefile.am
+	mkdir -p $(builddir)/gpgme++/interfaces
+	echo -n "#include \"$(abs_srcdir)" > "$@"
+	echo -n "$@" | sed "s/gpgme++//" >> "$@"
+	echo "\"" >> "$@"
+
 if HAVE_W32_SYSTEM
 GpgmeppConfig.cmake: GpgmeppConfig-w32.cmake.in
 	sed -e 's|[@]resolved_bindir@|$(bindir)|g' < "$<" | \
@ -115,5 +123,8 @@ install-data-local: install-cmake-files

 uninstall-local: uninstall-cmake-files

+BUILT_SOURCES = $(copied_headers)
+
 CLEANFILES = GpgmeppConfig.cmake GpgmeppConfigVersion.cmake \
-             gpgmepp_version.h GpgmeppConfig.cmake.in
+             gpgmepp_version.h GpgmeppConfig.cmake.in \
+             $(copied_headers)
--- a/lang/cpp/src/configuration.cpp
+++ b/lang/cpp/src/configuration.cpp
@ -257,158 +257,6 @@ Type Option::alternateType() const
    return isNull() ? NoType : static_cast<Type>(opt->alt_type) ;
 }

-#if 0
-static Option::Variant argument_to_variant(gpgme_conf_type_t type, bool list, gpgme_conf_arg_t arg)
-{
-    assert(arg);
-    switch (type) {
-    case GPGME_CONF_NONE:
-        if (list) {
-            // return the count (number of times set):
-            return arg->value.count;
-        } else {
-            return none;
-        }
-    case GPGME_CONF_INT32:
-        if (list) {
-            std::vector<int> result;
-            for (gpgme_conf_arg_t a = arg ; a ; a = a->next) {
-                result.push_back(a->value.int32);
-            }
-            return result;
-        } else {
-            return arg->value.int32;
-        }
-    case GPGME_CONF_UINT32:
-        if (list) {
-            std::vector<unsigned int> result;
-            for (gpgme_conf_arg_t a = arg ; a ; a = a->next) {
-                result.push_back(a->value.uint32);
-            }
-            return result;
-        } else {
-            return arg->value.uint32;
-        }
-    case GPGME_CONF_FILENAME:
-    case GPGME_CONF_LDAP_SERVER:
-    case GPGME_CONF_KEY_FPR:
-    case GPGME_CONF_PUB_KEY:
-    case GPGME_CONF_SEC_KEY:
-    case GPGME_CONF_ALIAS_LIST:
-    // these should not happen in alt_type, but fall through
-    case GPGME_CONF_STRING:
-        if (list) {
-            std::vector<const char *> result;
-            for (gpgme_conf_arg_t a = arg ; a ; a = a->next) {
-                result.push_back(a->value.string);
-            }
-            return result;
-        } else {
-            return arg->value.string;
-        }
-    }
-    assert(!"Option: unknown alt_type!");
-    return Option::Variant();
-}
-
-namespace
-{
-inline const void *to_void_star(const char *s)
-{
-    return s;
-}
-inline const void *to_void_star(const std::string &s)
-{
-    return s.c_str();
-}
-inline const void *to_void_star(const int &i)
-{
-    return &i;    // const-&: sic!
-}
-inline const void *to_void_star(const unsigned int &i)
-{
-    return &i;    // const-&: sic!
-}
-
-struct VariantToArgumentVisitor : boost::static_visitor<gpgme_conf_arg_t> {
-    static gpgme_conf_arg_t make_argument(gpgme_conf_type_t type, const void *value)
-    {
-        gpgme_conf_arg_t arg = 0;
-#ifdef HAVE_GPGME_CONF_ARG_NEW_WITH_CONST_VALUE
-        if (const gpgme_error_t err = gpgme_conf_arg_new(&arg, type, value)) {
-            return 0;
-        }
-#else
-        if (const gpgme_error_t err = gpgme_conf_arg_new(&arg, type, const_cast<void *>(value))) {
-            return 0;
-        }
-#endif
-        else {
-            return arg;
-        }
-    }
-
-    gpgme_conf_arg_t operator()(bool v) const
-    {
-        return v ? make_argument(0) : 0 ;
-    }
-
-    gpgme_conf_arg_t operator()(const char *s) const
-    {
-        return make_argument(s ? s : "");
-    }
-
-    gpgme_conf_arg_t operator()(const std::string &s) const
-    {
-        return operator()(s.c_str());
-    }
-
-    gpgme_conf_arg_t operator()(int i) const
-    {
-        return make_argument(&i);
-    }
-
-    gpgme_conf_arg_t operator()(unsigned int i) const
-    {
-        return make_argument(&i);
-    }
-
-    template <typename T>
-    gpgme_conf_arg_t operator()(const std::vector<T> &value) const
-    {
-        gpgme_conf_arg_t result = 0;
-        gpgme_conf_arg_t last = 0;
-        for (typename std::vector<T>::const_iterator it = value.begin(), end = value.end() ; it != end ; ++it) {
-            if (gpgme_conf_arg_t arg = make_argument(to_void_star(*it))) {
-                if (last) {
-                    last = last->next = arg;
-                } else {
-                    result = last = arg;
-                }
-            }
-        }
-        return result;
-    }
-
-};
-}
-
-static gpgme_conf_arg_t variant_to_argument(const Option::Variant &value)
-{
-    VariantToArgumentVisitor v;
-    return apply_visitor(v, value);
-}
-
-optional<Option::Variant> Option::defaultValue() const
-{
-    if (isNull()) {
-        return optional<Variant>();
-    } else {
-        return argument_to_variant(opt->alt_type, opt->flags & GPGME_CONF_LIST, opt->default_value);
-    }
-}
-#endif
-
 Argument Option::defaultValue() const
 {
    if (isNull()) {
--- a/lang/cpp/src/configuration.h
+++ b/lang/cpp/src/configuration.h
@ -190,7 +190,7 @@ public:

    /*! The value that is in the config file (or null, if it's not set). */
    Argument activeValue() const;
-    /*! The value that is in this object, ie. either activeValue(), newValue(), or defaultValue() */
+    /*! The value that is in this object, i.e. either activeValue(), newValue(), or defaultValue() */
    Argument currentValue() const;

    Argument newValue() const;
--- a/lang/cpp/src/context.cpp
+++ b/lang/cpp/src/context.cpp
@ -130,6 +130,13 @@ const char *Error::asString() const
    return mMessage.c_str();
 }

+std::string Error::asStdString() const
+{
+    std::string message;
+    format_error(static_cast<gpgme_error_t>(mErr), message);
+    return message;
+}
+
 int Error::code() const
 {
    return gpgme_err_code(mErr);
@ -147,11 +154,7 @@ bool Error::isCanceled() const

 int Error::toErrno() const
 {
-//#ifdef HAVE_GPGME_GPG_ERROR_WRAPPERS
    return gpgme_err_code_to_errno(static_cast<gpgme_err_code_t>(code()));
-//#else
-//    return gpg_err_code_to_errno( static_cast<gpg_err_code_t>( code() ) );
-//#endif
 }

 // static
@ -192,7 +195,7 @@ Error Error::fromCode(unsigned int err, unsigned int src)

 std::ostream &operator<<(std::ostream &os, const Error &err)
 {
-    return os << "GpgME::Error(" << err.encodedError() << " (" << err.asString() << "))";
+    return os << "GpgME::Error(" << err.encodedError() << " (" << err.asStdString() << "))";
 }

 Context::KeyListModeSaver::KeyListModeSaver(Context *ctx)
@ -1301,6 +1304,9 @@ static gpgme_sig_mode_t sigflags2sigflags(SignatureMode flags)
    if (flags & SignatureMode::SignArchive) {
        result |= GPGME_SIG_MODE_ARCHIVE;
    }
+    if (flags & SignatureMode::SignFile) {
+        result |= GPGME_SIG_MODE_FILE;
+    }
    return static_cast<gpgme_sig_mode_t>(result);
 }

@ -1363,6 +1369,9 @@ static gpgme_encrypt_flags_t encryptflags2encryptflags(Context::EncryptionFlags
    if (flags & Context::EncryptArchive) {
        result |= GPGME_ENCRYPT_ARCHIVE;
    }
+    if (flags & Context::EncryptFile) {
+        result |= GPGME_ENCRYPT_FILE;
+    }
    return static_cast<gpgme_encrypt_flags_t>(result);
 }

@ -1793,6 +1802,16 @@ Error Context::startRevokeSignature(const Key &key, const Key &signingKey,
                 key.impl(), signingKey.impl(), uids.c_str(), flags));
 }

+Error Context::addAdsk(const Key &k, const char *adsk)
+{
+    return Error(d->lasterr = gpgme_op_createsubkey(d->ctx, k.impl(), adsk, 0, 0, GPGME_CREATE_ADSK));
+}
+
+Error Context::startAddAdsk(const Key &k, const char *adsk)
+{
+    return Error(d->lasterr = gpgme_op_createsubkey_start(d->ctx, k.impl(), adsk, 0, 0, GPGME_CREATE_ADSK));
+}
+
 Error Context::setFlag(const char *name, const char *value)
 {
  return Error(d->lasterr = gpgme_set_ctx_flag(d->ctx, name, value));
@ -1927,6 +1946,7 @@ std::ostream &operator<<(std::ostream &os, SignatureMode mode)
    }
 #define CHECK( x ) if ( !(mode & (x)) ) {} else do { os << #x " "; } while (0)
        CHECK(SignArchive);
+        CHECK(SignFile);
 #undef CHECK
    return os << ')';
 }
@ -1945,6 +1965,7 @@ std::ostream &operator<<(std::ostream &os, Context::EncryptionFlags flags)
    CHECK(EncryptWrap);
    CHECK(WantAddress);
    CHECK(EncryptArchive);
+    CHECK(EncryptFile);
 #undef CHECK
    return os << ')';
 }
--- a/lang/cpp/src/context.h
+++ b/lang/cpp/src/context.h
@ -324,6 +324,9 @@ public:
    Error startRevokeSignature(const Key &key, const Key &signingKey,
                               const std::vector<UserID> &userIds = std::vector<UserID>());

+    Error addAdsk(const Key &k, const char *adsk);
+    Error startAddAdsk(const Key &k, const char *adsk);
+
    // using TofuInfo::Policy
    Error setTofuPolicy(const Key &k, unsigned int policy);
    Error setTofuPolicyStart(const Key &k, unsigned int policy);
@ -450,7 +453,8 @@ public:
        ThrowKeyIds = 64,
        EncryptWrap = 128,
        WantAddress = 256,
-        EncryptArchive = 512
+        EncryptArchive = 512,
+        EncryptFile = 1024
    };
    EncryptionResult encrypt(const std::vector<Key> &recipients, const Data &plainText, Data &cipherText, EncryptionFlags flags);
    GpgME::Error encryptSymmetrically(const Data &plainText, Data &cipherText);
--- a/lang/cpp/src/context_glib.cpp
+++ b/lang/cpp/src/context_glib.cpp
@ -1,41 +0,0 @@
-/*
-  context_glib.cpp - wraps a gpgme key context, gpgme-glib-specific functions
-  Copyright (C) 2007 Klarälvdalens Datakonsult AB
-  2016 Bundesamt für Sicherheit in der Informationstechnik
-  Software engineering by Intevation GmbH
-
-  This file is part of GPGME++.
-
-  GPGME++ is free software; you can redistribute it and/or
-  modify it under the terms of the GNU Library General Public
-  License as published by the Free Software Foundation; either
-  version 2 of the License, or (at your option) any later version.
-
-  GPGME++ is distributed in the hope that it will be useful,
-  but WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-  GNU Library General Public License for more details.
-
-  You should have received a copy of the GNU Library General Public License
-  along with GPGME++; see the file COPYING.LIB.  If not, write to the
-  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA 02110-1301, USA.
-*/
-
-#ifdef HAVE_CONFIG_H
- #include "config.h"
-#endif
-
-#include <global.h>
-
-extern "C" GIOChannel *gpgme_get_fdptr(int);
-
-GIOChannel *GpgME::getGIOChannel(int fd)
-{
-    return gpgme_get_fdptr(fd);
-}
-
-QIODevice *GpgME::getQIODevice(int fd)
-{
-    return 0;
-}
--- a/lang/cpp/src/context_qt.cpp
+++ b/lang/cpp/src/context_qt.cpp
@ -1,41 +0,0 @@
-/*
-  context_qt.cpp - wraps a gpgme key context, gpgme-qt-specific functions
-  Copyright (C) 2007 Klarälvdalens Datakonsult AB
-  2016 Bundesamt für Sicherheit in der Informationstechnik
-  Software engineering by Intevation GmbH
-
-  This file is part of GPGME++.
-
-  GPGME++ is free software; you can redistribute it and/or
-  modify it under the terms of the GNU Library General Public
-  License as published by the Free Software Foundation; either
-  version 2 of the License, or (at your option) any later version.
-
-  GPGME++ is distributed in the hope that it will be useful,
-  but WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-  GNU Library General Public License for more details.
-
-  You should have received a copy of the GNU Library General Public License
-  along with GPGME++; see the file COPYING.LIB.  If not, write to the
-  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-  Boston, MA 02110-1301, USA.
-*/
-
-#ifdef HAVE_CONFIG_H
- #include "config.h"
-#endif
-
-#include <global.h>
-
-extern "C" QIODevice *gpgme_get_fdptr(int);
-
-GIOChannel *GpgME::getGIOChannel(int)
-{
-    return 0;
-}
-
-QIODevice *GpgME::getQIODevice(int fd)
-{
-    return gpgme_get_fdptr(fd);
-}
--- a/lang/cpp/src/defaultassuantransaction.h
+++ b/lang/cpp/src/defaultassuantransaction.h
@ -25,7 +25,7 @@
 #ifndef __GPGMEPP_DEFAULTASSUANTRANSACTION_H__
 #define __GPGMEPP_DEFAULTASSUANTRANSACTION_H__

-#include <interfaces/assuantransaction.h>
+#include "interfaces/assuantransaction.h"

 #include <string>
 #include <vector>
--- a/lang/cpp/src/editinteractor.cpp
+++ b/lang/cpp/src/editinteractor.cpp
@ -52,6 +52,7 @@ using namespace GpgME;

 static const char *status_to_string(unsigned int status);
 static Error status_to_error(unsigned int status);
+static Error parse_sc_op_failure(const char *args);

 class EditInteractor::Private
 {
@ -102,6 +103,9 @@ public:
            } else if (status == GPGME_STATUS_ERROR) {
                err = ei->q->parseStatusError(args);
                ei->state = EditInteractor::ErrorState;
+            } else if (status == GPGME_STATUS_SC_OP_FAILURE) {
+                err = parse_sc_op_failure(args);
+                ei->state = EditInteractor::ErrorState;
            } else {
                ei->state = ei->q->nextState(status, args, err);
            }
@ -134,7 +138,7 @@ public:
                        if (writeAll(fd, result, len) != len) {
                            err = Error::fromSystemError();
                            if (ei->debug) {
-                                std::fprintf(ei->debug, "EditInteractor: Could not write to fd %d (%s)\n", fd, err.asString());
+                                std::fprintf(ei->debug, "EditInteractor: Could not write to fd %d (%s)\n", fd, err.asStdString().c_str());
                            }
                            goto error;
                        }
@ -143,7 +147,7 @@ public:
                    if (writeAll(fd, "\n", 1) != 1) {
                        err = Error::fromSystemError();
                        if (ei->debug) {
-                            std::fprintf(ei->debug, "EditInteractor: Could not write to fd %d (%s)\n", fd, err.asString());
+                            std::fprintf(ei->debug, "EditInteractor: Could not write to fd %d (%s)\n", fd, err.asStdString().c_str());
                        }
                        goto error;
                    }
@ -280,6 +284,38 @@ GpgME::Error EditInteractor::parseStatusError(const char *args)
    return err;
 }

+static Error sc_op_failure_to_error(unsigned int status)
+{
+    switch (status) {
+    case 1:
+        // GPG_ERR_CANCELED or GPG_ERR_FULLY_CANCELED
+        return Error::fromCode(GPG_ERR_CANCELED);
+    case 2:
+        // GPG_ERR_BAD_PIN or GPG_ERR_BAD_RESET_CODE [sic]
+        return Error::fromCode(GPG_ERR_BAD_PIN);
+    case 3:
+        return Error::fromCode(GPG_ERR_PIN_BLOCKED);
+    case 4:
+        return Error::fromCode(GPG_ERR_NO_RESET_CODE);
+    }
+    return Error::fromCode(GPG_ERR_CARD);
+}
+
+// static
+Error parse_sc_op_failure(const char *args)
+{
+    Error err;
+
+    const auto fields = split(args, ' ');
+    if (fields.size() >= 1) {
+        err = sc_op_failure_to_error(static_cast<unsigned int>(std::stoul(fields[0])));
+    } else {
+        err = Error::fromCode(GPG_ERR_CARD);
+    }
+
+    return err;
+}
+
 static const char *const status_strings[] = {
    "EOF",
    /* mkstatus processing starts here */
--- a/lang/cpp/src/error.h
+++ b/lang/cpp/src/error.h
@ -47,7 +47,11 @@ public:
    explicit Error(unsigned int e) : mErr(e), mMessage() {}

    const char *source() const;
-    const char *asString() const;
+    /* This function is deprecated. Use asStdString() instead. asString() may
+     * return wrongly encoded (i.e. not UTF-8) results on Windows for the main
+     * thread if the function was first called from a secondary thread. */
+    GPGMEPP_DEPRECATED const char *asString() const;
+    std::string asStdString() const;

    int code() const;
    int sourceID() const;
--- a/lang/cpp/src/global.h
+++ b/lang/cpp/src/global.h
@ -79,6 +79,7 @@ enum SignatureMode {
    Detached = 1,
    Clearsigned = 2,
    SignArchive = 4,
+    SignFile = 8,
 };

 enum class RevocationReason {
--- a/lang/cpp/src/gpgadduserideditinteractor.h
+++ b/lang/cpp/src/gpgadduserideditinteractor.h
@ -25,7 +25,7 @@
 #ifndef __GPGMEPP_GPGADDUSERIDEDITINTERACTOR_H__
 #define __GPGMEPP_GPGADDUSERIDEDITINTERACTOR_H__

-#include <editinteractor.h>
+#include "editinteractor.h"

 #include <string>

--- a/lang/cpp/src/gpgagentgetinfoassuantransaction.h
+++ b/lang/cpp/src/gpgagentgetinfoassuantransaction.h
@ -25,7 +25,7 @@
 #ifndef __GPGMEPP_GPGAGENTGETINFOASSUANTRANSACTION_H__
 #define __GPGMEPP_GPGAGENTGETINFOASSUANTRANSACTION_H__

-#include <interfaces/assuantransaction.h>
+#include "interfaces/assuantransaction.h"

 #include <string>
 #include <vector>
--- a/lang/cpp/src/gpggencardkeyinteractor.h
+++ b/lang/cpp/src/gpggencardkeyinteractor.h
@ -24,7 +24,7 @@
 #ifndef __GPGMEPP_GPGGENCARDKEYEDITINTERACTOR_H__
 #define __GPGMEPP_GPGGENCARDKEYEDITINTERACTOR_H__

-#include <editinteractor.h>
+#include "editinteractor.h"

 #include <string>
 #include <memory>
--- a/lang/cpp/src/gpgmefw.h
+++ b/lang/cpp/src/gpgmefw.h
@ -75,4 +75,7 @@ typedef struct _gpgme_tofu_info *gpgme_tofu_info_t;
 struct _gpgme_op_query_swdb_result;
 typedef struct _gpgme_op_query_swdb_result *gpgme_query_swdb_result_t;

+struct _gpgme_revocation_key;
+typedef struct _gpgme_revocation_key *gpgme_revocation_key_t;
+
 #endif // __GPGMEPP_GPGMEFW_H__
--- a/lang/cpp/src/gpgsetexpirytimeeditinteractor.h
+++ b/lang/cpp/src/gpgsetexpirytimeeditinteractor.h
@ -25,7 +25,7 @@
 #ifndef __GPGMEPP_GPGSETEXPIRYTIMEEDITINTERACTOR_H__
 #define __GPGMEPP_GPGSETEXPIRYTIMEEDITINTERACTOR_H__

-#include <editinteractor.h>
+#include "editinteractor.h"

 #include <string>

--- a/lang/cpp/src/gpgsetownertrusteditinteractor.h
+++ b/lang/cpp/src/gpgsetownertrusteditinteractor.h
@ -25,8 +25,8 @@
 #ifndef __GPGMEPP_GPGSETOWNERTRUSTEDITINTERACTOR_H__
 #define __GPGMEPP_GPGSETOWNERTRUSTEDITINTERACTOR_H__

-#include <editinteractor.h>
-#include <key.h>
+#include "editinteractor.h"
+#include "key.h"

 #include <string>

--- a/lang/cpp/src/gpgsignkeyeditinteractor.h
+++ b/lang/cpp/src/gpgsignkeyeditinteractor.h
@ -25,7 +25,7 @@
 #ifndef __GPGMEPP_GPGSIGNKEYEDITINTERACTOR_H__
 #define __GPGMEPP_GPGSIGNKEYEDITINTERACTOR_H__

-#include <editinteractor.h>
+#include "editinteractor.h"

 #include <string>
 #include <vector>
--- a/lang/cpp/src/interfaces/assuantransaction.h
+++ b/lang/cpp/src/interfaces/assuantransaction.h
@ -26,7 +26,7 @@
 #ifndef __GPGMEPP_INTERFACES_ASSUANTRANSACTION_H__
 #define __GPGMEPP_INTERFACES_ASSUANTRANSACTION_H__

-#include "gpgmepp_export.h"
+#include "../gpgmepp_export.h"

 #include <stddef.h>

--- a/lang/cpp/src/interfaces/dataprovider.h
+++ b/lang/cpp/src/interfaces/dataprovider.h
@ -27,7 +27,7 @@

 #include <sys/types.h>

-#include "gpgmepp_export.h"
+#include "../gpgmepp_export.h"

 #include <gpg-error.h>

--- a/lang/cpp/src/interfaces/statusconsumer.h
+++ b/lang/cpp/src/interfaces/statusconsumer.h
@ -24,7 +24,7 @@
 #ifndef __GPGMEPP_INTERFACES_STATUSCONSUMER_H__
 #define __GPGMEPP_INTERFACES_STATUSCONSUMER_H__

-#include "gpgmepp_export.h"
+#include "../gpgmepp_export.h"

 namespace GpgME
 {
--- a/lang/cpp/src/key.cpp
+++ b/lang/cpp/src/key.cpp
@ -122,6 +122,37 @@ std::vector<Subkey> Key::subkeys() const
    return v;
 }

+RevocationKey Key::revocationKey(unsigned int index) const
+{
+    return RevocationKey(key, index);
+}
+
+unsigned int Key::numRevocationKeys() const
+{
+    if (!key) {
+        return 0;
+    }
+    unsigned int count = 0;
+    for (auto revkey = key->revocation_keys; revkey; revkey = revkey->next) {
+        ++count;
+    }
+    return count;
+}
+
+std::vector<RevocationKey> Key::revocationKeys() const
+{
+    if (!key) {
+        return std::vector<RevocationKey>();
+    }
+
+    std::vector<RevocationKey> v;
+    v.reserve(numRevocationKeys());
+    for (auto revkey = key->revocation_keys; revkey; revkey = revkey->next) {
+        v.push_back(RevocationKey(key, revkey));
+    }
+    return v;
+}
+
 Key::OwnerTrust Key::ownerTrust() const
 {
    if (!key) {
@ -247,6 +278,26 @@ bool Key::isDeVs() const
    return true;
 }

+bool Key::hasCertify() const
+{
+    return key && key->has_certify;
+}
+
+bool Key::hasSign() const
+{
+    return key && key->has_sign;
+}
+
+bool Key::hasEncrypt() const
+{
+    return key && key->has_encrypt;
+}
+
+bool Key::hasAuthenticate() const
+{
+    return key && key->has_authenticate;
+}
+
 const char *Key::issuerSerial() const
 {
    return key ? key->issuer_serial : nullptr ;
@ -1236,6 +1287,68 @@ bool UserID::Signature::isBad() const
    return isNull() || isExpired() || isInvalid();
 }

+//
+//
+// class RevocationKey
+//
+//
+
+static gpgme_revocation_key_t find_revkey(const shared_gpgme_key_t &key, unsigned int idx)
+{
+    if (key) {
+        for (gpgme_revocation_key_t s = key->revocation_keys; s; s = s->next, --idx) {
+            if (idx == 0) {
+                return s;
+            }
+        }
+    }
+    return nullptr;
+}
+
+static gpgme_revocation_key_t verify_revkey(const shared_gpgme_key_t &key, gpgme_revocation_key_t revkey)
+{
+    if (key) {
+        for (gpgme_revocation_key_t s = key->revocation_keys; s; s = s->next) {
+            if (s == revkey) {
+                return revkey;
+            }
+        }
+    }
+    return nullptr;
+}
+
+RevocationKey::RevocationKey() : key(), revkey(nullptr) {}
+
+RevocationKey::RevocationKey(const shared_gpgme_key_t &k, unsigned int idx)
+    : key(k), revkey(find_revkey(k, idx))
+{
+}
+
+RevocationKey::RevocationKey(const shared_gpgme_key_t &k, gpgme_revocation_key_t sk)
+    : key(k), revkey(verify_revkey(k, sk))
+{
+}
+
+Key RevocationKey::parent() const
+{
+    return Key(key);
+}
+
+const char *RevocationKey::fingerprint() const
+{
+    return revkey ? revkey->fpr : nullptr;
+}
+
+bool RevocationKey::isSensitive() const
+{
+    return revkey ? revkey->sensitive : false;
+}
+
+int RevocationKey::algorithm() const
+{
+    return revkey ? revkey->pubkey_algo : 0;
+}
+
 std::ostream &operator<<(std::ostream &os, const UserID &uid)
 {
    os << "GpgME::UserID(";
@ -1305,6 +1418,20 @@ std::ostream &operator<<(std::ostream &os, const Key &key)
        const std::vector<Subkey> subkeys = key.subkeys();
        std::copy(subkeys.begin(), subkeys.end(),
                  std::ostream_iterator<Subkey>(os, "\n"));
+        os << " revocationKeys:\n";
+        const std::vector<RevocationKey> revkeys = key.revocationKeys();
+        std::copy(revkeys.begin(), revkeys.end(),
+                  std::ostream_iterator<RevocationKey>(os, "\n"));
+    }
+    return os << ')';
+}
+
+std::ostream &operator<<(std::ostream &os, const RevocationKey &revkey)
+{
+    os << "GpgME::RevocationKey(";
+    if (!revkey.isNull()) {
+        os << "\n fingerprint: " << protect(revkey.fingerprint())
+           << "\n isSensitive: " << revkey.isSensitive();
    }
    return os << ')';
 }
--- a/lang/cpp/src/key.h
+++ b/lang/cpp/src/key.h
@ -44,6 +44,7 @@ class Context;
 class Subkey;
 class UserID;
 class TofuInfo;
+class RevocationKey;

 typedef std::shared_ptr< std::remove_pointer<gpgme_key_t>::type > shared_gpgme_key_t;

@ -100,6 +101,10 @@ public:
    std::vector<UserID> userIDs() const;
    std::vector<Subkey> subkeys() const;

+    RevocationKey revocationKey(unsigned int index) const;
+    unsigned int numRevocationKeys() const;
+    std::vector<RevocationKey> revocationKeys() const;
+
    bool isRevoked() const;
    bool isExpired() const;
    bool isDisabled() const;
@ -109,14 +114,31 @@ public:
     *                          isDisabled || isInvalid */
    bool isBad() const;

+    /** Returns true, if the key can be used for encryption (i.e. it's not bad
+     *  and has an encryption subkey) or if the primary subkey can encrypt. */
    bool canEncrypt() const;
+    /** Returns true, if the key can be used for signing (i.e. it's not bad
+     *  and has a signing subkey) or if the primary subkey can sign. */
    bool canSign() const;
    GPGMEPP_DEPRECATED bool canReallySign() const;
+    /** Returns true, if the key can be used for certification (i.e. it's not bad
+     *  and has a certification subkey) or if the primary subkey can certify. */
    bool canCertify() const;
+    /** Returns true, if the key can be used for authentication (i.e. it's not bad
+     *  and has a authentication subkey) or if the primary subkey can authenticate. */
    bool canAuthenticate() const;
    bool isQualified() const;
    bool isDeVs() const;

+    /** Returns true, if the key has a certification subkey. */
+    bool hasCertify() const;
+    /** Returns true, if the key has a signing subkey. */
+    bool hasSign() const;
+    /** Returns true, if the key has an encryption subkey. */
+    bool hasEncrypt() const;
+    /** Returns true, if the key has an authentication subkey. */
+    bool hasAuthenticate() const;
+
    bool hasSecret() const;
    GPGMEPP_DEPRECATED bool isSecret() const
    {
@ -530,9 +552,53 @@ private:
    gpgme_key_sig_t sig;
 };

+//
+// class RevocationKey
+//
+
+class GPGMEPP_EXPORT RevocationKey
+{
+public:
+    RevocationKey();
+    RevocationKey(const shared_gpgme_key_t &key, gpgme_revocation_key_t revkey);
+    RevocationKey(const shared_gpgme_key_t &key, unsigned int idx);
+
+    // Rule of Zero
+
+    void swap(RevocationKey &other)
+    {
+        using std::swap;
+        swap(this->key, other.key);
+        swap(this->revkey, other.revkey);
+    }
+
+    bool isNull() const
+    {
+        return !key || !revkey;
+    }
+
+    Key parent() const;
+
+    const char *fingerprint() const;
+
+    bool isSensitive() const;
+
+    int algorithm() const;
+
+private:
+    shared_gpgme_key_t key;
+    gpgme_revocation_key_t revkey;
+};
+
+inline void swap(RevocationKey& v1, RevocationKey& v2)
+{
+    v1.swap(v2);
+}
+
 GPGMEPP_EXPORT std::ostream &operator<<(std::ostream &os, const UserID &uid);
 GPGMEPP_EXPORT std::ostream &operator<<(std::ostream &os, const Subkey &subkey);
 GPGMEPP_EXPORT std::ostream &operator<<(std::ostream &os, const Key &key);
+GPGMEPP_EXPORT std::ostream &operator<<(std::ostream &os, const RevocationKey &revkey);

 } // namespace GpgME

--- a/lang/cpp/src/scdgetinfoassuantransaction.h
+++ b/lang/cpp/src/scdgetinfoassuantransaction.h
@ -25,7 +25,7 @@
 #ifndef __GPGMEPP_SCDGETINFOASSUANTRANSACTION_H__
 #define __GPGMEPP_SCDGETINFOASSUANTRANSACTION_H__

-#include <interfaces/assuantransaction.h>
+#include "interfaces/assuantransaction.h"

 #include <string>
 #include <vector>
--- a/lang/cpp/src/signingresult.cpp
+++ b/lang/cpp/src/signingresult.cpp
@ -200,6 +200,7 @@ GpgME::SignatureMode GpgME::CreatedSignature::mode() const
    case GPGME_SIG_MODE_DETACH: return Detached;
    case GPGME_SIG_MODE_CLEAR:  return Clearsigned;
    case GPGME_SIG_MODE_ARCHIVE: return SignArchive; // cannot happen
+    case GPGME_SIG_MODE_FILE:   return SignFile; // cannot happen
    }
 }

--- a/lang/cpp/src/statusconsumerassuantransaction.h
+++ b/lang/cpp/src/statusconsumerassuantransaction.h
@ -24,7 +24,7 @@
 #ifndef __GPGMEPP_STATUSCONSUMERASSUANTRANSACTION_H__
 #define __GPGMEPP_STATUSCONSUMERASSUANTRANSACTION_H__

-#include <interfaces/assuantransaction.h>
+#include "interfaces/assuantransaction.h"

 namespace GpgME
 {
--- a/lang/cpp/src/trustitem.h
+++ b/lang/cpp/src/trustitem.h
@ -27,7 +27,7 @@
 #define __GPGMEPP_TRUSTITEM_H__

 #include "gpgmefw.h"
-#include <key.h>
+#include "key.h"
 #include "gpgmepp_export.h"

 #include <algorithm>
--- a/lang/cpp/tests/run-getkey.cpp
+++ b/lang/cpp/tests/run-getkey.cpp
@ -150,7 +150,7 @@ main (int argc, char **argv)
    const GpgME::Key key = ctx->key (*argv, err, only_secret);
    std::stringstream ss;

-    ss << "Key " << key << " Err: " << err.asString() << "\n";
+    ss << "Key " << key << " Err: " << err.asStdString() << "\n";

    std::cout << ss.str();

--- a/lang/cpp/tests/run-keylist.cpp
+++ b/lang/cpp/tests/run-keylist.cpp
@ -153,14 +153,17 @@ main (int argc, char **argv)
    }
    Error err = ctx->startKeyListing (*argv, only_secret);
    if (err) {
-        std::cout << "Error: " << err.asString() << "\n";
+        std::cout << "Error: " << err.asStdString() << "\n";
        return -1;
    }
    GpgME::Key key;
    std::stringstream ss;
    do {
        key = ctx->nextKey(err);
+        if (!err)
+        {
            ss << key << "\n\n";
+        }
    } while (!err && !key.isNull());

    std::cout << ss.str();
--- a/lang/cpp/tests/run-wkdlookup.cpp
+++ b/lang/cpp/tests/run-wkdlookup.cpp
@ -75,49 +75,52 @@ main (int argc, char **argv)
    Error err;
    auto ctx = std::unique_ptr<Context>{Context::createForEngine(AssuanEngine, &err)};
    if (!ctx) {
-        std::cerr << "Failed to get context (Error: " << err.asString() << ")\n";
+        std::cerr << "Failed to get context (Error: " << err.asStdString() << ")\n";
        return -1;
    }

    const std::string dirmngrSocket = GpgME::dirInfo("dirmngr-socket");
    if ((err = ctx->setEngineFileName(dirmngrSocket.c_str()))) {
-        std::cerr << "Failed to set engine file name (Error: " << err.asString() << ")\n";
+        std::cerr << "Failed to set engine file name (Error: " << err.asStdString() << ")\n";
        return -1;
    }
    if ((err = ctx->setEngineHomeDirectory(""))) {
-        std::cerr << "Failed to set engine home directory (Error: " << err.asString() << ")\n";
+        std::cerr << "Failed to set engine home directory (Error: " << err.asStdString() << ")\n";
        return -1;
    }

-    // try do connect to dirmngr
+    // try to connect to dirmngr
    err = ctx->assuanTransact("GETINFO version");
    if (err && err.code() != GPG_ERR_ASS_CONNECT_FAILED) {
-        std::cerr << "Failed to start assuan transaction (Error: " << err.asString() << ")\n";
+        std::cerr << "Failed to start assuan transaction (Error: " << err.asStdString() << ")\n";
        return -1;
    }
    if (err.code() == GPG_ERR_ASS_CONNECT_FAILED) {
        std::cerr << "Starting dirmngr ...\n";
        auto spawnCtx = std::unique_ptr<Context>{Context::createForEngine(SpawnEngine, &err)};
        if (!spawnCtx) {
-            std::cerr << "Failed to get context for spawn engine (Error: " << err.asString() << ")\n";
+            std::cerr << "Failed to get context for spawn engine (Error: " << err.asStdString() << ")\n";
            return -1;
        }

-        const auto dirmngrProgram = GpgME::dirInfo("dirmngr-name");
-        const auto homedir = GpgME::dirInfo("homedir");
+        const auto gpgconfProgram = GpgME::dirInfo("gpgconf-name");
+        // replace backslashes with forward slashes in homedir to work around bug T6833
+        std::string homedir{GpgME::dirInfo("homedir")};
+        std::replace(homedir.begin(), homedir.end(), '\\', '/');
        const char *argv[] = {
-            dirmngrProgram,
+            gpgconfProgram,
            "--homedir",
-            homedir,
-            "--daemon",
+            homedir.c_str(),
+            "--launch",
+            "dirmngr",
            NULL
        };
        auto ignoreIO = Data{Data::null};
-        err = spawnCtx->spawnAsync(dirmngrProgram, argv,
+        err = spawnCtx->spawn(gpgconfProgram, argv,
                              ignoreIO, ignoreIO, ignoreIO,
                              Context::SpawnDetached);
        if (err) {
-            std::cerr << "Failed to start dirmngr (Error: " << err.asString() << ")\n";
+            std::cerr << "Failed to start dirmngr (Error: " << err.asStdString() << ")\n";
            return -1;
        }

@ -134,7 +137,7 @@ main (int argc, char **argv)
    const auto cmd = std::string{"WKD_GET "} + email;
    err = ctx->assuanTransact(cmd.c_str());
    if (err && err.code() != GPG_ERR_NO_NAME && err.code() != GPG_ERR_NO_DATA) {
-        std::cerr << "Error: WKD_GET returned " << err.asString() << "\n";
+        std::cerr << "Error: WKD_GET returned " << err.asStdString() << "\n";
        return -1;
    }

--- a/lang/python/Makefile.am
+++ b/lang/python/Makefile.am
@ -80,7 +80,7 @@ CLEANFILES = copystamp \
 # 'make distclean' clears the write bit, breaking rm -rf.  Fix the
 # permissions.
 clean-local:
-	rm -rf -- build
+	rm -rf -- build dist gpg.egg-info
 	for PYTHON in $(PYTHONS); do \
 	  find "$$(basename "$${PYTHON}")-gpg" -type d ! -perm -200 -exec chmod u+w {} ';' ; \
 	  rm -rf -- "$$(basename "$${PYTHON}")-gpg" ; \
@ -101,8 +101,12 @@ install-exec-local:
 	done

 uninstall-local:
-	set -x; GV=$$(echo $(VERSION) | tr - _); for PYTHON in $(PYTHONS); do \
+	set -x; \
+	GV=$$(echo $(VERSION) | tr - _); \
+	normalizedGV=$$(echo $$GV | sed s/_beta/b/); \
+	for PYTHON in $(PYTHONS); do \
 	  PLATLIB="$(prefix)/$$("$${PYTHON}" -c 'import sysconfig, os; print(os.path.relpath(sysconfig.get_path("platlib", scheme="posix_prefix"), sysconfig.get_config_var("prefix")))')" ; \
 	  rm -rf -- "$(DESTDIR)$${PLATLIB}/gpg" \
-		"$(DESTDIR)$${PLATLIB}"/gpg-$$GV-py*.egg-info ; \
+		"$(DESTDIR)$${PLATLIB}"/gpg-$$GV-py*.egg-info \
+		"$(DESTDIR)$${PLATLIB}"/gpg-$$normalizedGV-py*.egg ; \
 	done
--- a/lang/python/doc/src/gpgme-python-howto.org
+++ b/lang/python/doc/src/gpgme-python-howto.org
@ -2945,7 +2945,7 @@ Save that into a file called =keycount.pyx= and then create a
 =setup.py= file which contains this:

 #+BEGIN_SRC python -i
-from distutils.core import setup
+from setuptools import setup
 from Cython.Build import cythonize

 setup(
--- a/lang/python/doc/texinfo/texinfo.tex
+++ b/lang/python/doc/texinfo/texinfo.tex
@ -498,7 +498,7 @@
 % \def\foo{\parsearg\Xfoo}
 % \def\Xfoo#1{...}
 %
-% Actually, I use \csname\string\foo\endcsname, ie. \\foo, as it is my
+% Actually, I use \csname\string\foo\endcsname, i.e. \\foo, as it is my
 % favourite TeX trick.  --kasal, 16nov03

 \def\parseargdef#1{%
--- a/lang/python/examples/howto/add-userid.py
+++ b/lang/python/examples/howto/add-userid.py
@ -21,7 +21,7 @@ from __future__ import absolute_import, division, unicode_literals
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License and the GNU
-# Lesser General Public along with this program; if not, see
+# Lesser General Public License along with this program; if not, see
 # <https://www.gnu.org/licenses/>.

 import gpg
--- a/lang/python/examples/howto/advanced/cython/setup.py
+++ b/lang/python/examples/howto/advanced/cython/setup.py
@ -1,4 +1,4 @@
-from distutils.core import setup
+from setuptools import setup
 from Cython.Build import cythonize

 setup(
--- a/lang/python/examples/howto/clear-sign-file.py
+++ b/lang/python/examples/howto/clear-sign-file.py
@ -21,7 +21,7 @@ from __future__ import absolute_import, division, unicode_literals
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License and the GNU
-# Lesser General Public along with this program; if not, see
+# Lesser General Public License along with this program; if not, see
 # <https://www.gnu.org/licenses/>.

 import gpg
--- a/lang/python/examples/howto/create-key.py
+++ b/lang/python/examples/howto/create-key.py
@ -21,7 +21,7 @@ from __future__ import absolute_import, division, unicode_literals
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License and the GNU
-# Lesser General Public along with this program; if not, see
+# Lesser General Public License along with this program; if not, see
 # <https://www.gnu.org/licenses/>.

 import gpg
--- a/lang/python/examples/howto/decrypt-file.py
+++ b/lang/python/examples/howto/decrypt-file.py
@ -21,7 +21,7 @@ from __future__ import absolute_import, division, unicode_literals
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License and the GNU
-# Lesser General Public along with this program; if not, see
+# Lesser General Public License along with this program; if not, see
 # <https://www.gnu.org/licenses/>.

 import gpg
--- a/lang/python/examples/howto/detach-sign-file.py
+++ b/lang/python/examples/howto/detach-sign-file.py
@ -21,7 +21,7 @@ from __future__ import absolute_import, division, unicode_literals
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License and the GNU
-# Lesser General Public along with this program; if not, see
+# Lesser General Public License along with this program; if not, see
 # <https://www.gnu.org/licenses/>.

 import gpg
--- a/lang/python/examples/howto/encrypt-file.py
+++ b/lang/python/examples/howto/encrypt-file.py
@ -24,7 +24,7 @@ import sys
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License and the GNU
-# Lesser General Public along with this program; if not, see
+# Lesser General Public License along with this program; if not, see
 # <https://www.gnu.org/licenses/>.

 """
--- a/lang/python/examples/howto/encrypt-sign-file.py
+++ b/lang/python/examples/howto/encrypt-sign-file.py
@ -24,7 +24,7 @@ import sys
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License and the GNU
-# Lesser General Public along with this program; if not, see
+# Lesser General Public License along with this program; if not, see
 # <https://www.gnu.org/licenses/>.

 """
--- a/lang/python/examples/howto/encrypt-to-group-gullible.py
+++ b/lang/python/examples/howto/encrypt-to-group-gullible.py
@ -25,7 +25,7 @@ from groups import group_lists
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License and the GNU
-# Lesser General Public along with this program; if not, see
+# Lesser General Public License along with this program; if not, see
 # <https://www.gnu.org/licenses/>.

 """
--- a/lang/python/examples/howto/encrypt-to-group-trustno1.py
+++ b/lang/python/examples/howto/encrypt-to-group-trustno1.py
@ -25,7 +25,7 @@ from groups import group_lists
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License and the GNU
-# Lesser General Public along with this program; if not, see
+# Lesser General Public License along with this program; if not, see
 # <https://www.gnu.org/licenses/>.

 """
--- a/lang/python/examples/howto/encrypt-to-group.py
+++ b/lang/python/examples/howto/encrypt-to-group.py
@ -25,7 +25,7 @@ from groups import group_lists
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License and the GNU
-# Lesser General Public along with this program; if not, see
+# Lesser General Public License along with this program; if not, see
 # <https://www.gnu.org/licenses/>.

 """
--- a/lang/python/examples/howto/export-key.py
+++ b/lang/python/examples/howto/export-key.py
@ -25,7 +25,7 @@ import sys
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License and the GNU
-# Lesser General Public along with this program; if not, see
+# Lesser General Public License along with this program; if not, see
 # <https://www.gnu.org/licenses/>.

 print("""
--- a/lang/python/examples/howto/export-minimised-key.py
+++ b/lang/python/examples/howto/export-minimised-key.py
@ -25,7 +25,7 @@ import sys
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License and the GNU
-# Lesser General Public along with this program; if not, see
+# Lesser General Public License along with this program; if not, see
 # <https://www.gnu.org/licenses/>.

 print("""
--- a/lang/python/examples/howto/export-secret-key.py
+++ b/lang/python/examples/howto/export-secret-key.py
@ -26,7 +26,7 @@ import sys
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License and the GNU
-# Lesser General Public along with this program; if not, see
+# Lesser General Public License along with this program; if not, see
 # <https://www.gnu.org/licenses/>.

 print("""
--- a/lang/python/examples/howto/export-secret-keys.py
+++ b/lang/python/examples/howto/export-secret-keys.py
@ -27,7 +27,7 @@ import sys
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License and the GNU
-# Lesser General Public along with this program; if not, see
+# Lesser General Public License along with this program; if not, see
 # <https://www.gnu.org/licenses/>.

 print("""
--- a/lang/python/examples/howto/groups.py
+++ b/lang/python/examples/howto/groups.py
@ -20,7 +20,7 @@ from __future__ import absolute_import, division, unicode_literals
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License and the GNU
-# Lesser General Public along with this program; if not, see
+# Lesser General Public License along with this program; if not, see
 # <https://www.gnu.org/licenses/>.

 import subprocess
--- a/lang/python/examples/howto/import-key.py
+++ b/lang/python/examples/howto/import-key.py
@ -27,7 +27,7 @@ del absolute_import, division, unicode_literals
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License and the GNU
-# Lesser General Public along with this program; if not, see
+# Lesser General Public License along with this program; if not, see
 # <https://www.gnu.org/licenses/>.

 print("""
--- a/lang/python/examples/howto/import-keybasekey.py
+++ b/lang/python/examples/howto/import-keybasekey.py
@ -25,7 +25,7 @@ import sys
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License and the GNU
-# Lesser General Public along with this program; if not, see
+# Lesser General Public License along with this program; if not, see
 # <https://www.gnu.org/licenses/>.

 print("""
--- a/lang/python/examples/howto/import-keys-hkp.py
+++ b/lang/python/examples/howto/import-keys-hkp.py
@ -25,7 +25,7 @@ import sys
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License and the GNU
-# Lesser General Public along with this program; if not, see
+# Lesser General Public License along with this program; if not, see
 # <https://www.gnu.org/licenses/>.

 print("""
--- a/lang/python/examples/howto/import-keys.py
+++ b/lang/python/examples/howto/import-keys.py
@ -25,7 +25,7 @@ import requests
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License and the GNU
-# Lesser General Public along with this program; if not, see
+# Lesser General Public License along with this program; if not, see
 # <https://www.gnu.org/licenses/>.

 print("""
--- a/lang/python/examples/howto/import-mailvelope-keys.py
+++ b/lang/python/examples/howto/import-mailvelope-keys.py
@ -25,7 +25,7 @@ import sys
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License and the GNU
-# Lesser General Public along with this program; if not, see
+# Lesser General Public License along with this program; if not, see
 # <https://www.gnu.org/licenses/>.

 print("""
--- a/lang/python/examples/howto/keycount.py
+++ b/lang/python/examples/howto/keycount.py
@ -21,7 +21,7 @@ from __future__ import absolute_import, division, unicode_literals
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License and the GNU
-# Lesser General Public along with this program; if not, see
+# Lesser General Public License along with this program; if not, see
 # <https://www.gnu.org/licenses/>.

 import gpg
--- a/lang/python/examples/howto/local-sign-group.py
+++ b/lang/python/examples/howto/local-sign-group.py
@ -28,7 +28,7 @@ from groups import group_lists
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License and the GNU
-# Lesser General Public along with this program; if not, see
+# Lesser General Public License along with this program; if not, see
 # <https://www.gnu.org/licenses/>.

 print("""
--- a/lang/python/examples/howto/mutt-groups.py
+++ b/lang/python/examples/howto/mutt-groups.py
@ -21,7 +21,7 @@ from __future__ import absolute_import, division, unicode_literals
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License and the GNU
-# Lesser General Public along with this program; if not, see
+# Lesser General Public License along with this program; if not, see
 # <https://www.gnu.org/licenses/>.

 import sys
--- a/lang/python/examples/howto/pmkey-import-alt.py
+++ b/lang/python/examples/howto/pmkey-import-alt.py
@ -28,7 +28,7 @@ del absolute_import, division, unicode_literals
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License and the GNU
-# Lesser General Public along with this program; if not, see
+# Lesser General Public License along with this program; if not, see
 # <https://www.gnu.org/licenses/>.

 print("""
--- a/lang/python/examples/howto/pmkey-import-hkp-alt.py
+++ b/lang/python/examples/howto/pmkey-import-hkp-alt.py
@ -28,7 +28,7 @@ del absolute_import, division, unicode_literals
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License and the GNU
-# Lesser General Public along with this program; if not, see
+# Lesser General Public License along with this program; if not, see
 # <https://www.gnu.org/licenses/>.

 print("""
--- a/lang/python/examples/howto/pmkey-import-hkp.py
+++ b/lang/python/examples/howto/pmkey-import-hkp.py
@ -28,7 +28,7 @@ del absolute_import, division, unicode_literals
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License and the GNU
-# Lesser General Public along with this program; if not, see
+# Lesser General Public License along with this program; if not, see
 # <https://www.gnu.org/licenses/>.

 print("""
--- a/lang/python/examples/howto/pmkey-import.py
+++ b/lang/python/examples/howto/pmkey-import.py
@ -27,7 +27,7 @@ del absolute_import, division, unicode_literals
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License and the GNU
-# Lesser General Public along with this program; if not, see
+# Lesser General Public License along with this program; if not, see
 # <https://www.gnu.org/licenses/>.

 print("""
--- a/lang/python/examples/howto/revoke-userid.py
+++ b/lang/python/examples/howto/revoke-userid.py
@ -21,7 +21,7 @@ from __future__ import absolute_import, division, unicode_literals
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License and the GNU
-# Lesser General Public along with this program; if not, see
+# Lesser General Public License along with this program; if not, see
 # <https://www.gnu.org/licenses/>.

 import gpg
--- a/lang/python/examples/howto/send-key-to-keyserver.py
+++ b/lang/python/examples/howto/send-key-to-keyserver.py
@ -26,7 +26,7 @@ import sys
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License and the GNU
-# Lesser General Public along with this program; if not, see
+# Lesser General Public License along with this program; if not, see
 # <https://www.gnu.org/licenses/>.

 print("""
--- a/lang/python/examples/howto/sign-file.py
+++ b/lang/python/examples/howto/sign-file.py
@ -21,7 +21,7 @@ from __future__ import absolute_import, division, unicode_literals
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License and the GNU
-# Lesser General Public along with this program; if not, see
+# Lesser General Public License along with this program; if not, see
 # <https://www.gnu.org/licenses/>.

 import gpg
--- a/lang/python/examples/howto/sign-key.py
+++ b/lang/python/examples/howto/sign-key.py
@ -21,7 +21,7 @@ from __future__ import absolute_import, division, unicode_literals
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License and the GNU
-# Lesser General Public along with this program; if not, see
+# Lesser General Public License along with this program; if not, see
 # <https://www.gnu.org/licenses/>.

 import gpg
--- a/lang/python/examples/howto/symcrypt-file.py
+++ b/lang/python/examples/howto/symcrypt-file.py
@ -24,7 +24,7 @@ import sys
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License and the GNU
-# Lesser General Public along with this program; if not, see
+# Lesser General Public License along with this program; if not, see
 # <https://www.gnu.org/licenses/>.

 """
--- a/lang/python/examples/howto/temp-homedir-config.py
+++ b/lang/python/examples/howto/temp-homedir-config.py
@ -25,7 +25,7 @@ import sys
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License and the GNU
-# Lesser General Public along with this program; if not, see
+# Lesser General Public License along with this program; if not, see
 # <https://www.gnu.org/licenses/>.

 intro = """
--- a/lang/python/examples/howto/verify-signatures.py
+++ b/lang/python/examples/howto/verify-signatures.py
@ -21,7 +21,7 @@ from __future__ import absolute_import, division, unicode_literals
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License and the GNU
-# Lesser General Public along with this program; if not, see
+# Lesser General Public License along with this program; if not, see
 # <https://www.gnu.org/licenses/>.

 import gpg
--- a/lang/python/examples/howto/verify-signed-file.py
+++ b/lang/python/examples/howto/verify-signed-file.py
@ -21,7 +21,7 @@ from __future__ import absolute_import, division, unicode_literals
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License and the GNU
-# Lesser General Public along with this program; if not, see
+# Lesser General Public License along with this program; if not, see
 # <https://www.gnu.org/licenses/>.

 import gpg
--- a/lang/python/gpgme.i
+++ b/lang/python/gpgme.i
@ -26,7 +26,7 @@
 %ignore HAVE_CXX11;

 %{
-/* We use public symbols (eg. "_obsolete_class") which are marked as
+/* We use public symbols (e.g. "_obsolete_class") which are marked as
 * deprecated but we need to keep them.  Silence the warning.  */
 #pragma GCC diagnostic ignored "-Wdeprecated-declarations"
 %}
--- a/lang/python/setup.py.in
+++ b/lang/python/setup.py.in
@ -18,8 +18,12 @@
 #    License along with this library; if not, write to the Free Software
 #    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA

-from distutils.core import setup, Extension
-from distutils.command.build import build
+try:
+    from setuptools import setup, Extension
+    from setuptools.command.build import build
+except ImportError:
+    from distutils.core import setup, Extension
+    from distutils.command.build import build

 import glob
 import os
@ -225,9 +229,8 @@ class BuildExtFirstHack(build):
        build.run(self)


-py3 = [] if sys.version_info.major < 3 else ['-py3']
 swig_sources = []
-swig_opts = ['-threads'] + py3 + extra_swig_opts
+swig_opts = ['-threads'] + extra_swig_opts
 swige = Extension(
    'gpg._gpgme',
    sources=swig_sources,
@ -282,10 +285,12 @@ GPGME and these bindings is available here:
        'Programming Language :: Python :: 2',
        'Programming Language :: Python :: 2.7',
        'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.4',
-        'Programming Language :: Python :: 3.5',
        'Programming Language :: Python :: 3.6',
-        'Programming Language :: Python :: 3.7',
+        'Programming Language :: Python :: 3.8',
+        'Programming Language :: Python :: 3.9',
+        'Programming Language :: Python :: 3.10',
+        'Programming Language :: Python :: 3.11',
+        'Programming Language :: Python :: 3.12',
        'Operating System :: POSIX',
        'Operating System :: Microsoft :: Windows',
        'Topic :: Communications :: Email',
--- a/lang/python/src/core.py
+++ b/lang/python/src/core.py
@ -813,7 +813,7 @@ class Context(GpgmeWrapper):
        Keyword arguments:
        algorithm    -- public key algorithm, see above (default: reasonable)
        expires_in   -- expiration time in seconds (default: reasonable)
-        expires      -- whether or not the key should expire (default: True)
+        expires      -- whether the key should expire (default: True)
        sign         -- request the signing capability (see above)
        encrypt      -- request the encryption capability (see above)
        certify      -- request the certification capability (see above)
@ -901,7 +901,7 @@ class Context(GpgmeWrapper):
        Keyword arguments:
        algorithm    -- public key algorithm, see above (default: reasonable)
        expires_in   -- expiration time in seconds (default: reasonable)
-        expires      -- whether or not the subkey should expire (default: True)
+        expires      -- whether the subkey should expire (default: True)
        sign         -- request the signing capability (see above)
        encrypt      -- request the encryption capability (see above)
        authenticate -- request the authentication capability (see above)
@ -1032,7 +1032,7 @@ class Context(GpgmeWrapper):

        If command is a string or bytes, it will be used as-is.  If it
        is an iterable of strings, it will be properly escaped and
-        joined into an well-formed assuan command.
+        joined into a well-formed assuan command.

        Keyword arguments:
        data_cb		-- a callback receiving data lines
--- a/lang/python/tests/t-quick-key-manipulation.py
+++ b/lang/python/tests/t-quick-key-manipulation.py
@ -88,7 +88,7 @@ with support.EphemeralContext() as ctx:
    except gpg.errors.GpgError:
        pass

-    # try to add an pre-existent UID
+    # try to add a pre-existent UID
    try:
        ctx.key_add_uid(key, bravo)
        assert False, "Expected an error but got none"
--- a/lang/qt/Makefile.am
+++ b/lang/qt/Makefile.am
@ -1,22 +1,22 @@
-# Makefile.am for GPGMEPP.
+# Makefile.am - Makefile for QGpgME.
 # Copyright (C) 2016 Bundesamt für Sicherheit in der Informationstechnik
 # Software engineering by Intevation GmbH
 #
-# This file is part of GPGMEPP.
+# This file is part of QGpgME, the Qt API binding for GpgME.
 #
-# GPGME-CL is free software; you can redistribute it and/or modify it
+# QGpgME is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
 # the Free Software Foundation; either version 2 of the License, or
 # (at your option) any later version.
 #
-# GPGME-CL is distributed in the hope that it will be useful,
+# QGpgME is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU Lesser General Public License for more details.
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this program; if not, see <https://gnu.org/licenses/>.
-# SPDX-License-Identifier: LGPL-2.1-or-later
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, see <https://gnu.org/licenses/>.
+# SPDX-License-Identifier: GPL-2.0-or-later

 if RUN_GPG_TESTS
 tests = tests
--- a/lang/qt/README
+++ b/lang/qt/README
@ -32,7 +32,7 @@ To use QGpgME first you need to obtain a Protocol class
 either for CMS (S/MIME) or OpenPGP. This Protocol class
 can then be used to create a Job.

-Each Job can be started asynchronusly and emits a result
+Each Job can be started asynchronously and emits a result
 signal when done. The jobs are deleted automatically
 with QObject::deleteLater so they can be started without
 result handlers.
@ -53,7 +53,7 @@ in the result signal.
 Jobs also provide progress signal whenever GnuPG emits
 a progress status line.

-Most jobs also provide a way synchronusly execute them.
+Most jobs also provide a way synchronously execute them.
 Please not that synchronous use does not cause the autodeletion
 to take place so you have to manually delete them.

--- a/lang/qt/doc/Makefile.am
+++ b/lang/qt/doc/Makefile.am
@ -1,21 +1,22 @@
-# Makefile.am - Makefile for GPGME Qt docs.
+# Makefile.am - Makefile for QGpgME docs.
 # Copyright (C) 2016 Bundesamt für Sicherheit in der Informationstechnik
 # Software engineering by Intevation GmbH
 #
-# This file is part of GPGME.
+# This file is part of QGpgME.
 #
-# GPGME is free software; you can redistribute it and/or modify it
-# under the terms of the GNU Lesser General Public License as
-# published by the Free Software Foundation; either version 2.1 of the
-# License, or (at your option) any later version.
+# QGpgME is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
 #
-# GPGME is distributed in the hope that it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
-# or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General
-# Public License for more details.
+# QGpgME is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this program; if not, see <https://www.gnu.org/licenses/>.
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, see <https://gnu.org/licenses/>.
+# SPDX-License-Identifier: GPL-2.0-or-later

 ## Process this file with automake to produce Makefile.in

--- a/lang/qt/src/Makefile.am
+++ b/lang/qt/src/Makefile.am
@ -1,18 +1,18 @@
-# Makefile.am for GPGMEPP.
+# Makefile.am for QGpgME.
 # Copyright (C) 2016 Bundesamt für Sicherheit in der Informationstechnik
 # Software engineering by Intevation GmbH
 #
-# This file is part of GPGMEPP.
+# This file is part of QGpgME, the Qt API binding for GpgME.
 #
-# GPGME-CL is free software; you can redistribute it and/or modify it
+# QGpgME is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
 # the Free Software Foundation; either version 2 of the License, or
 # (at your option) any later version.
 #
-# GPGME-CL is distributed in the hope that it will be useful,
+# QGpgME is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU Lesser General Public License for more details.
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
 # along with this program; if not, write to the Free Software
@ -20,11 +20,12 @@
 # 02111-1307, USA

 if WANT_QT5
-lib_LTLIBRARIES = libqgpgme.la
+libqgpgme_la = libqgpgme.la
 endif
 if WANT_QT6
-lib_LTLIBRARIES = libqgpgmeqt6.la
+libqgpgmeqt6_la = libqgpgmeqt6.la
 endif
+lib_LTLIBRARIES = $(libqgpgme_la) $(libqgpgmeqt6_la)

 EXTRA_DIST = QGpgmeConfig.cmake.in.in QGpgmeConfigVersion.cmake.in \
             qgpgme_debug.h qgpgme_version.h.in \
@ -32,9 +33,11 @@ EXTRA_DIST = QGpgmeConfig.cmake.in.in QGpgmeConfigVersion.cmake.in \
             QGpgmeQt6Config-w32.cmake.in.in QGpgmeQt6ConfigVersion.cmake.in

 qgpgme_sources = \
+    cleaner.cpp \
    dataprovider.cpp \
    debug.cpp \
    decryptverifyarchivejob.cpp \
+    decryptverifyjob.cpp \
    encryptarchivejob.cpp \
    filelistdataprovider.cpp \
    job.cpp multideletejob.cpp qgpgmeadduseridjob.cpp \
@ -64,8 +67,11 @@ qgpgme_sources = \
    signarchivejob.cpp \
    signencryptjob.cpp \
    signencryptarchivejob.cpp \
+    signjob.cpp \
    dn.cpp cryptoconfig.cpp wkdlookupresult.cpp \
    util.cpp \
+    verifydetachedjob.cpp \
+    verifyopaquejob.cpp \
    wkdrefreshjob.cpp

 # If you add one here make sure that you also add one in camelcase
@ -176,7 +182,9 @@ camelcase_headers= \

 private_qgpgme_headers = \
    changeexpiryjob_p.h \
+    cleaner.h \
    decryptverifyarchivejob_p.h \
+    decryptverifyjob_p.h \
    encryptarchivejob_p.h \
    encryptjob_p.h \
    importjob_p.h \
@ -224,8 +232,11 @@ private_qgpgme_headers = \
    signarchivejob_p.h \
    signencryptjob_p.h \
    signencryptarchivejob_p.h \
+    signjob_p.h \
    threadedjobmixin.h \
    util.h \
+    verifydetachedjob_p.h \
+    verifyopaquejob_p.h \
    wkdrefreshjob_p.h

 qgpgme_moc_sources = \
@ -235,6 +246,7 @@ qgpgme_moc_sources = \
    changeexpiryjob.moc \
    changeownertrustjob.moc \
    changepasswdjob.moc \
+    cleaner.moc \
    decryptjob.moc \
    decryptverifyarchivejob.moc \
    decryptverifyjob.moc \
@ -308,33 +320,84 @@ qgpgme_moc_sources = \
    gpgcardjob.moc \
    qgpgmegpgcardjob.moc

-qgpgmeincludedir = $(includedir)/qgpgme
-qgpgmeinclude_HEADERS = $(qgpgme_headers)
-camelcaseincludedir = $(includedir)/QGpgME
-camelcaseinclude_HEADERS = $(camelcase_headers)
-nodist_qgpgmeinclude_HEADERS = qgpgme_version.h
+if WANT_QT5
+includeprefix5 = qgpgme-qt5
+qgpgme5includedir = $(includedir)/$(includeprefix5)/qgpgme
+qgpgme5include_HEADERS = $(qgpgme_headers)
+nodist_qgpgme5include_HEADERS = qgpgme_version.h
+camelcase5includedir = $(includedir)/$(includeprefix5)/QGpgME
+nodist_camelcase5include_HEADERS = $(camelcase_headers)
+endif
+if WANT_QT6
+includeprefix6 = qgpgme-qt6
+qgpgme6includedir = $(includedir)/$(includeprefix6)/qgpgme
+qgpgme6include_HEADERS = $(qgpgme_headers)
+nodist_qgpgme6include_HEADERS = qgpgme_version.h
+camelcase6includedir = $(includedir)/$(includeprefix6)/QGpgME
+nodist_camelcase6include_HEADERS = $(camelcase_headers)
+endif
+
+# generate the moc files in two steps:
+# 1. generate Qt 5/6-specific moc files in builddir with extension .moc5/.moc6;
+#    this ensures correct dependencies on the source files
+# 2. generate forwarding headers in subfolders moc5/moc6 with extension .moc;
+#    this ensures that the "foo.moc" includes in the source files work and
+#    include the correct version of the generated moc files for Qt 5/6
+# GNU make's pattern rules would make this easier, but we don't want to use them
+if WANT_QT5
+moc5_dir = moc5
+qgpgme_moc5_sources = $(qgpgme_moc_sources:%.moc=%.moc5)
+qgpgme_moc5_forward_headers = $(qgpgme_moc_sources:%=$(moc5_dir)/%)
+
+.h.moc5:
+	$(MOC5) `test -f '$<' || echo '$(srcdir)/'`$< -o $@
+
+$(moc5_dir):
+	mkdir $(moc5_dir)
+
+$(qgpgme_moc5_forward_headers): Makefile.am | $(moc5_dir)
+	echo "#include \"../$(notdir $@)5\"" > "$@"
+endif
+if WANT_QT6
+moc6_dir = moc6
+qgpgme_moc6_sources = $(qgpgme_moc_sources:%.moc=%.moc6)
+qgpgme_moc6_forward_headers = $(qgpgme_moc_sources:%=$(moc6_dir)/%)
+
+.h.moc6:
+	$(MOC6) `test -f '$<' || echo '$(srcdir)/'`$< -o $@
+
+$(moc6_dir):
+	mkdir $(moc6_dir)
+
+$(qgpgme_moc6_forward_headers): Makefile.am | $(moc6_dir)
+	echo "#include \"../$(notdir $@)6\"" > "$@"
+endif

 if WANT_QT5
-AM_CPPFLAGS = -I$(top_srcdir)/lang/cpp/src -I$(top_builddir)/src \
+libqgpgme_la_CPPFLAGS = -I./moc5 -I$(top_builddir)/lang/cpp/src -I$(top_builddir)/src \
              @GPGME_QT5_CFLAGS@ @GPG_ERROR_CFLAGS@ @LIBASSUAN_CFLAGS@ \
              -DBUILDING_QGPGME -Wsuggest-override \
              -Wzero-as-null-pointer-constant

 libqgpgme_la_SOURCES = $(qgpgme_sources) $(qgpgme_headers) $(private_qgpgme_headers)

+nodist_libqgpgme_la_SOURCES = $(qgpgme_moc5_sources) $(qgpgme_moc5_forward_headers)
+
 libqgpgme_la_LIBADD = ../../cpp/src/libgpgmepp.la ../../../src/libgpgme.la \
                      @LIBASSUAN_LIBS@ @GPG_ERROR_LIBS@ @GPGME_QT5_LIBS@
 libqgpgme_la_LDFLAGS = -no-undefined -version-info \
                       @LIBQGPGME_LT_CURRENT@:@LIBQGPGME_LT_REVISION@:@LIBQGPGME_LT_AGE@
 endif
 if WANT_QT6
-AM_CPPFLAGS = -I$(top_srcdir)/lang/cpp/src -I$(top_builddir)/src \
+libqgpgmeqt6_la_CPPFLAGS = -I./moc6 -I$(top_builddir)/lang/cpp/src -I$(top_builddir)/src \
              @GPGME_QT6_CFLAGS@ @GPG_ERROR_CFLAGS@ @LIBASSUAN_CFLAGS@ \
              -DBUILDING_QGPGME -Wsuggest-override \
              -Wzero-as-null-pointer-constant

 libqgpgmeqt6_la_SOURCES = $(qgpgme_sources) $(qgpgme_headers) $(private_qgpgme_headers)

+nodist_libqgpgmeqt6_la_SOURCES = $(qgpgme_moc6_sources) $(qgpgme_moc6_forward_headers)
+
 libqgpgmeqt6_la_LIBADD = ../../cpp/src/libgpgmepp.la ../../../src/libgpgme.la \
                         @LIBASSUAN_LIBS@ @GPG_ERROR_LIBS@ @GPGME_QT6_LIBS@
 libqgpgmeqt6_la_LDFLAGS = -no-undefined -version-info \
@ -352,12 +415,12 @@ if HAVE_W32_SYSTEM
 QGpgmeConfig.cmake: QGpgmeConfig-w32.cmake.in
 	sed -e 's|[@]resolved_bindir@|$(bindir)|g' < "$<" | \
 	sed -e 's|[@]resolved_libdir@|$(libdir)|g' | \
-	sed -e 's|[@]resolved_includedir@|$(includedir)|g' > $@
+	sed -e 's|[@]resolved_includedir@|$(includedir)/$(includeprefix5)|g' > $@
 else
 QGpgmeConfig.cmake: QGpgmeConfig.cmake.in
 	sed -e 's|[@]resolved_libdir@|$(libdir)|g' < "$<" | \
 	sed -e 's|[@]libsuffix@|$(libsuffix)|g' | \
-	sed -e 's|[@]resolved_includedir@|$(includedir)|g' > $@
+	sed -e 's|[@]resolved_includedir@|$(includedir)/$(includeprefix5)|g' > $@
 endif
 endif
 if WANT_QT6
@ -365,12 +428,12 @@ if HAVE_W32_SYSTEM
 QGpgmeQt6Config.cmake: QGpgmeQt6Config-w32.cmake.in
 	sed -e 's|[@]resolved_bindir@|$(bindir)|g' < "$<" | \
 	sed -e 's|[@]resolved_libdir@|$(libdir)|g' | \
-	sed -e 's|[@]resolved_includedir@|$(includedir)|g' > $@
+	sed -e 's|[@]resolved_includedir@|$(includedir)/$(includeprefix6)|g' > $@
 else
 QGpgmeQt6Config.cmake: QGpgmeQt6Config.cmake.in
 	sed -e 's|[@]resolved_libdir@|$(libdir)|g' < "$<" | \
 	sed -e 's|[@]libsuffix@|$(libsuffix)|g' | \
-	sed -e 's|[@]resolved_includedir@|$(includedir)|g' > $@
+	sed -e 's|[@]resolved_includedir@|$(includedir)/$(includeprefix6)|g' > $@
 endif
 endif

@ -380,50 +443,65 @@ $(camelcase_headers): Makefile.am
 	echo ".h\"" >> "$@"

 if WANT_QT5
-install-cmake-files: QGpgmeConfig.cmake QGpgmeConfigVersion.cmake
+install-cmake-files-qt5: QGpgmeConfig.cmake QGpgmeConfigVersion.cmake
 	-$(INSTALL) -d $(DESTDIR)$(libdir)/cmake/QGpgme
 	$(INSTALL) -m 644 QGpgmeConfig.cmake \
 	$(DESTDIR)$(libdir)/cmake/QGpgme/QGpgmeConfig.cmake
 	$(INSTALL) -m 644 QGpgmeConfigVersion.cmake \
 	$(DESTDIR)$(libdir)/cmake/QGpgme/QGpgmeConfigVersion.cmake
+install_cmake_files_qt5 = install-cmake-files-qt5

-uninstall-cmake-files:
+uninstall-cmake-files-qt5:
 	-rm $(DESTDIR)$(libdir)/cmake/QGpgme/QGpgmeConfigVersion.cmake
 	-rm $(DESTDIR)$(libdir)/cmake/QGpgme/QGpgmeConfig.cmake
 	-rmdir $(DESTDIR)$(libdir)/cmake/QGpgme/
+uninstall_cmake_files_qt5 = uninstall-cmake-files-qt5
+
+uninstall-include-dirs-qt5:
+	-rmdir $(DESTDIR)$(qgpgme5includedir)
+	-rmdir $(DESTDIR)$(camelcase5includedir)
+	-rmdir $(DESTDIR)$(includedir)/$(includeprefix5)
+uninstall_include_dirs_qt5 = uninstall-include-dirs-qt5
 endif
 if WANT_QT6
-install-cmake-files: QGpgmeQt6Config.cmake QGpgmeQt6ConfigVersion.cmake
+install-cmake-files-qt6: QGpgmeQt6Config.cmake QGpgmeQt6ConfigVersion.cmake
 	-$(INSTALL) -d $(DESTDIR)$(libdir)/cmake/QGpgmeQt6
 	$(INSTALL) -m 644 QGpgmeQt6Config.cmake \
 	$(DESTDIR)$(libdir)/cmake/QGpgmeQt6/QGpgmeQt6Config.cmake
 	$(INSTALL) -m 644 QGpgmeQt6ConfigVersion.cmake \
 	$(DESTDIR)$(libdir)/cmake/QGpgmeQt6/QGpgmeQt6ConfigVersion.cmake
+install_cmake_files_qt6 = install-cmake-files-qt6

-uninstall-cmake-files:
+uninstall-cmake-files-qt6:
 	-rm $(DESTDIR)$(libdir)/cmake/QGpgmeQt6/QGpgmeQt6ConfigVersion.cmake
 	-rm $(DESTDIR)$(libdir)/cmake/QGpgmeQt6/QGpgmeQt6Config.cmake
 	-rmdir $(DESTDIR)$(libdir)/cmake/QGpgmeQt6/
+uninstall_cmake_files_qt6 = uninstall-cmake-files-qt6
+
+uninstall-include-dirs-qt6:
+	-rmdir $(DESTDIR)$(qgpgme6includedir)
+	-rmdir $(DESTDIR)$(camelcase6includedir)
+	-rmdir $(DESTDIR)$(includedir)/$(includeprefix6)
+uninstall_include_dirs_qt6 = uninstall-include-dirs-qt6
 endif

-install-data-local: install-cmake-files
+install-data-local: $(install_cmake_files_qt5) $(install_cmake_files_qt6)

-uninstall-local: uninstall-cmake-files
+uninstall-hook: $(uninstall_cmake_files_qt5) $(uninstall_cmake_files_qt6) \
+		$(uninstall_include_dirs_qt5) $(uninstall_include_dirs_qt6)

-BUILT_SOURCES = $(qgpgme_moc_sources) $(camelcase_headers)
+BUILT_SOURCES = $(qgpgme_moc5_sources) $(qgpgme_moc5_forward_headers) \
+		$(qgpgme_moc6_sources) $(qgpgme_moc6_forward_headers) \
+		$(camelcase_headers)

-CLEANFILES = $(qgpgme_moc_sources) $(camelcase_headers) QGpgmeConfig.cmake \
+CLEANFILES = $(qgpgme_moc5_sources) $(qgpgme_moc5_forward_headers) \
+	     $(qgpgme_moc6_sources) $(qgpgme_moc6_forward_headers) \
+	     $(camelcase_headers) QGpgmeConfig.cmake \
             qgpgme_version.h QGpgmeConfig.cmake.in \
             QGpgmeConfig-w32.cmake.in QGpgmeConfigVersion.cmake \
             QGpgmeQt6Config.cmake.in QGpgmeQt6Config-w32.cmake.in \
             QGpgmeQt6Config.cmake QGpgmeQt6ConfigVersion.cmake

-if WANT_QT5
-nodist_libqgpgme_la_SOURCES = $(qgpgme_moc_sources)
-endif
-if WANT_QT6
-nodist_libqgpgmeqt6_la_SOURCES = $(qgpgme_moc_sources)
-endif
-
-.h.moc:
-	$(MOC) `test -f '$<' || echo '$(srcdir)/'`$< -o $@
+clean-local:
+	-test -z "$(moc5_dir)" || rm -rf $(moc5_dir)
+	-test -z "$(moc6_dir)" || rm -rf $(moc6_dir)
--- a/lang/qt/src/QGpgmeConfig-w32.cmake.in.in
+++ b/lang/qt/src/QGpgmeConfig-w32.cmake.in.in
@ -1,17 +1,17 @@
 # CMake Config file for QGPGME.
 # Copyright (C) 2016 Intevation GmbH
 #
-# This file is part of GPGME.
+# This file is part of QGpgME.
 #
-# GPGME-CL is free software; you can redistribute it and/or modify it
+# QGpgME is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
 # the Free Software Foundation; either version 2 of the License, or
 # (at your option) any later version.
 #
-# GPGME-CL is distributed in the hope that it will be useful,
+# QGpgME is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU Lesser General Public License for more details.
+# GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
 # along with this program; if not, write to the Free Software
--- a/lang/qt/src/QGpgmeConfig.cmake.in.in
+++ b/lang/qt/src/QGpgmeConfig.cmake.in.in
@ -1,17 +1,17 @@
 # CMake Config file for QGPGME.
 # Copyright (C) 2016 Intevation GmbH
 #
-# This file is part of GPGME.
+# This file is part of QGpgME.
 #
-# GPGME-CL is free software; you can redistribute it and/or modify it
+# QGpgME is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
 # the Free Software Foundation; either version 2 of the License, or
 # (at your option) any later version.
 #
-# GPGME-CL is distributed in the hope that it will be useful,
+# QGpgME is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU Lesser General Public License for more details.
+# GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
 # along with this program; if not, write to the Free Software
--- a/lang/qt/src/QGpgmeConfigVersion.cmake.in
+++ b/lang/qt/src/QGpgmeConfigVersion.cmake.in
@ -1,17 +1,17 @@
 # CMake Version file for QGPGME.
 # Copyright (C) 2016 Intevation GmbH
 #
-# This file is part of GPGME.
+# This file is part of QGpgME.
 #
-# GPGME-CL is free software; you can redistribute it and/or modify it
+# QGpgME is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
 # the Free Software Foundation; either version 2 of the License, or
 # (at your option) any later version.
 #
-# GPGME-CL is distributed in the hope that it will be useful,
+# QGpgME is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU Lesser General Public License for more details.
+# GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
 # along with this program; if not, write to the Free Software
--- a/lang/qt/src/QGpgmeQt6Config-w32.cmake.in.in
+++ b/lang/qt/src/QGpgmeQt6Config-w32.cmake.in.in
@ -1,7 +1,7 @@
 # CMake Config file for QGpgME for Qt 6
 # Copyright (C) 2016 Intevation GmbH
 #
-# This file is part of GPGME.
+# This file is part of QGpgME.
 #
 # QGpgME is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
@ -11,7 +11,7 @@
 # QGpgME is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU Lesser General Public License for more details.
+# GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
 # along with this program; if not, write to the Free Software
--- a/lang/qt/src/QGpgmeQt6Config.cmake.in.in
+++ b/lang/qt/src/QGpgmeQt6Config.cmake.in.in
@ -1,7 +1,7 @@
 # CMake Config file for QGpgME for Qt 6
 # Copyright (C) 2016 Intevation GmbH
 #
-# This file is part of GPGME.
+# This file is part of QGpgME.
 #
 # QGpgME is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
@ -11,7 +11,7 @@
 # QGpgME is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU Lesser General Public License for more details.
+# GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
 # along with this program; if not, write to the Free Software
--- a/lang/qt/src/QGpgmeQt6ConfigVersion.cmake.in
+++ b/lang/qt/src/QGpgmeQt6ConfigVersion.cmake.in
@ -1,7 +1,7 @@
 # CMake Version file for QGpgME for Qt 6
 # Copyright (C) 2016 Intevation GmbH
 #
-# This file is part of GPGME.
+# This file is part of QGpgME.
 #
 # QGpgME is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
@ -11,7 +11,7 @@
 # QGpgME is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU Lesser General Public License for more details.
+# GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
 # along with this program; if not, write to the Free Software
--- a/lang/qt/src/changeexpiryjob.cpp
+++ b/lang/qt/src/changeexpiryjob.cpp
@ -38,7 +38,7 @@
 #include "changeexpiryjob.h"
 #include "changeexpiryjob_p.h"

-#include <context.h>
+#include <gpgme++/context.h>

 using namespace GpgME;
 using namespace QGpgME;
--- a/lang/qt/src/changeexpiryjob.h
+++ b/lang/qt/src/changeexpiryjob.h
@ -37,11 +37,7 @@

 #include "job.h"

-#ifdef BUILDING_QGPGME
-# include "key.h"
-#else
-# include <gpgme++/key.h>
-#endif
+#include <gpgme++/key.h>

 #include <vector>

--- a/lang/qt/src/changeownertrustjob.h
+++ b/lang/qt/src/changeownertrustjob.h
@ -37,11 +37,7 @@

 #include "job.h"

-#ifdef BUILDING_QGPGME
-# include "key.h"
-#else
-# include <gpgme++/key.h>
-#endif
+#include <gpgme++/key.h>

 namespace QGpgME
 {
--- a/lang/qt/src/cleaner.cpp
+++ b/lang/qt/src/cleaner.cpp
@ -0,0 +1,99 @@
+/*
+    cleaner.cpp
+
+    This file is part of qgpgme, the Qt API binding for gpgme
+    Copyright (c) 2023 g10 Code GmbH
+    Software engineering by Ingo Klöcker <dev@ingo-kloecker.de>
+
+    QGpgME is free software; you can redistribute it and/or
+    modify it under the terms of the GNU General Public License as
+    published by the Free Software Foundation; either version 2 of the
+    License, or (at your option) any later version.
+
+    QGpgME is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+    In addition, as a special exception, the copyright holders give
+    permission to link the code of this program with any edition of
+    the Qt library by Trolltech AS, Norway (or with modified versions
+    of Qt that use the same license as Qt), and distribute linked
+    combinations including the two.  You must obey the GNU General
+    Public License in all respects for all of the code used other than
+    Qt.  If you modify this file, you may extend this exception to
+    your version of the file, but you are not obligated to do so.  If
+    you do not wish to do so, delete this exception statement from
+    your version.
+*/
+
+#include "cleaner.h"
+
+#include <qgpgme_debug.h>
+
+#include <QCoreApplication>
+#include <QFile>
+
+#include <chrono>
+
+static const auto timeout = std::chrono::seconds{10};
+
+static bool remove_file(const QString &filePath)
+{
+    if (filePath.isEmpty()) {
+        qCWarning(QGPGME_LOG) << __func__ << "- called with empty file path";
+        return true;
+    }
+    if (QFile::exists(filePath)) {
+        qCDebug(QGPGME_LOG) << __func__ << "- Removing file" << filePath;
+        if (!QFile::remove(filePath)) {
+            qCDebug(QGPGME_LOG) << __func__ << "- Removing file" << filePath << "failed";
+            return false;
+        }
+    } else {
+        qCDebug(QGPGME_LOG) << __func__ << "- File" << filePath << "doesn't exist";
+    }
+    return true;
+}
+
+void Cleaner::removeFile(const QString &filePath)
+{
+    if (!remove_file(filePath)) {
+        // use invokeMethod because we might not be called from the GUI thread
+        // but we want to delegate the Cleaner's clean-up to the application instance
+        QMetaObject::invokeMethod(qApp, [filePath]() {
+            new Cleaner{filePath, qApp};
+        }, Qt::QueuedConnection);
+    }
+}
+
+Cleaner::Cleaner(const QString &filePath, QObject *parent)
+    : QObject{parent}
+    , mFilePath{filePath}
+{
+    qCDebug(QGPGME_LOG) << this << __func__ << filePath;
+    mTimer.setSingleShot(true);
+    mTimer.callOnTimeout([this]() {
+        if (remove_file(mFilePath)) {
+            mFilePath.clear();
+            deleteLater();
+        } else {
+            mTimer.start(timeout);
+        }
+    });
+    mTimer.start(timeout);
+}
+
+Cleaner::~Cleaner()
+{
+    qCDebug(QGPGME_LOG) << this << __func__;
+    if (!mFilePath.isEmpty()) {
+        remove_file(mFilePath);
+    }
+}
+
+#include "cleaner.moc"
--- a/lang/qt/src/cleaner.h
+++ b/lang/qt/src/cleaner.h
@ -0,0 +1,60 @@
+/*
+    cleaner.h
+
+    This file is part of qgpgme, the Qt API binding for gpgme
+    Copyright (c) 2023 g10 Code GmbH
+    Software engineering by Ingo Klöcker <dev@ingo-kloecker.de>
+
+    QGpgME is free software; you can redistribute it and/or
+    modify it under the terms of the GNU General Public License as
+    published by the Free Software Foundation; either version 2 of the
+    License, or (at your option) any later version.
+
+    QGpgME is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+    In addition, as a special exception, the copyright holders give
+    permission to link the code of this program with any edition of
+    the Qt library by Trolltech AS, Norway (or with modified versions
+    of Qt that use the same license as Qt), and distribute linked
+    combinations including the two.  You must obey the GNU General
+    Public License in all respects for all of the code used other than
+    Qt.  If you modify this file, you may extend this exception to
+    your version of the file, but you are not obligated to do so.  If
+    you do not wish to do so, delete this exception statement from
+    your version.
+*/
+
+#ifndef __QGPGME_CLEANER_H__
+#define __QGPGME_CLEANER_H__
+
+#include <QObject>
+#include <QString>
+#include <QTimer>
+
+/** Helper class that tries to remove files at regular intervals and on destruction. */
+class Cleaner : public QObject
+{
+    Q_OBJECT
+public:
+    /** Tries to remove the file. If this fails it creates a Cleaner for the file. */
+    static void removeFile(const QString &filePath);
+
+private:
+    explicit Cleaner(const QString &filePath, QObject *parent=nullptr);
+    ~Cleaner() override;
+
+    Q_DISABLE_COPY_MOVE(Cleaner)
+
+private:
+    QString mFilePath;
+    QTimer mTimer;
+};
+
+#endif // __QGPGME_CLEANER_H__
--- a/lang/qt/src/dataprovider.cpp
+++ b/lang/qt/src/dataprovider.cpp
@ -1,24 +1,24 @@
 /* dataprovider.cpp
+
+    This file is part of qgpgme, the Qt API binding for gpgme
    Copyright (C) 2004 Klarävdalens Datakonsult AB
    Copyright (c) 2016 by Bundesamt für Sicherheit in der Informationstechnik
    Software engineering by Intevation GmbH

-   This file is part of QGPGME.
+    QGpgME is free software; you can redistribute it and/or
+    modify it under the terms of the GNU General Public License as
+    published by the Free Software Foundation; either version 2 of the
+    License, or (at your option) any later version.

-   QGPGME is free software; you can redistribute it and/or modify it
-   under the terms of the GNU Library General Public License as published
-   by the Free Software Foundation; either version 2 of the License, or
-   (at your option) any later version.
+    QGpgME is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    General Public License for more details.

-   QGPGME is distributed in the hope that it will be useful, but
-   WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU Library General Public License for more details.
-
-   You should have received a copy of the GNU Library General Public License
-   along with QGPGME; see the file COPYING.LIB.  If not, write to the
-   Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-   Boston, MA 02110-1301, USA. */
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+*/

 // -*- c++ -*-

@ -28,7 +28,7 @@

 #include <dataprovider.h>

-#include <error.h>
+#include <gpgme++/error.h>

 #include <QIODevice>
 #include <QProcess>
--- a/lang/qt/src/dataprovider.h
+++ b/lang/qt/src/dataprovider.h
@ -1,24 +1,24 @@
 /* dataprovider.h
+
+    This file is part of qgpgme, the Qt API binding for gpgme
    Copyright (C) 2004 Klarälvdalens Datakonsult AB
    Copyright (c) 2016 by Bundesamt für Sicherheit in der Informationstechnik
    Software engineering by Intevation GmbH

-   This file is part of QGPGME.
+    QGpgME is free software; you can redistribute it and/or
+    modify it under the terms of the GNU General Public License as
+    published by the Free Software Foundation; either version 2 of the
+    License, or (at your option) any later version.

-   QGPGME is free software; you can redistribute it and/or modify it
-   under the terms of the GNU Library General Public License as published
-   by the Free Software Foundation; either version 2 of the License, or
-   (at your option) any later version.
+    QGpgME is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    General Public License for more details.

-   QGPGME is distributed in the hope that it will be useful, but
-   WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU Library General Public License for more details.
-
-   You should have received a copy of the GNU Library General Public License
-   along with QGPGME; see the file COPYING.LIB.  If not, write to the
-   Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-   Boston, MA 02110-1301, USA. */
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+*/

 // -*- c++ -*-
 #ifndef __QGPGME_DATAPROVIDER_H__
@ -26,11 +26,7 @@

 #include "qgpgme_export.h"

-#ifdef BUILDING_QGPGME
-#include <interfaces/dataprovider.h>
-#else
 #include <gpgme++/interfaces/dataprovider.h>
-#endif

 #include <memory>

--- a/lang/qt/src/debug.cpp
+++ b/lang/qt/src/debug.cpp
@ -35,15 +35,21 @@
 #include "config.h"
 #endif

-#include "error.h"
+#include <gpgme++/error.h>
 #include "debug.h"

 #include <QDebug>

 QDebug operator<<(QDebug debug, const GpgME::Error &err)
 {
+#ifdef Q_OS_WIN
+    // On Windows, we tell libgpg-error to return (translated) error messages as UTF-8
+    const auto errAsString = QString::fromStdString(err.asStdString());
+#else
+    const auto errAsString = QString::fromLocal8Bit(err.asStdString().c_str());
+#endif
    const bool oldSetting = debug.autoInsertSpaces();
-    debug.nospace() << err.asString() << " (code: " << err.code() << ", source: " << err.source() << ")";
+    debug.nospace() << errAsString << " (code: " << err.code() << ", source: " << err.source() << ")";
    debug.setAutoInsertSpaces(oldSetting);
    return debug.maybeSpace();
 }
--- a/lang/qt/src/decryptverifyarchivejob.cpp
+++ b/lang/qt/src/decryptverifyarchivejob.cpp
@ -38,7 +38,7 @@
 #include "decryptverifyarchivejob.h"
 #include "decryptverifyarchivejob_p.h"

-#include <engineinfo.h>
+#include <gpgme++/engineinfo.h>

 using namespace QGpgME;

--- a/lang/qt/src/decryptverifyarchivejob.h
+++ b/lang/qt/src/decryptverifyarchivejob.h
@ -36,11 +36,7 @@

 #include "job.h"

-#ifdef BUILDING_QGPGME
-# include "context.h"
-#else
-# include <gpgme++/context.h>
-#endif
+#include <gpgme++/context.h>

 namespace GpgME
 {
--- a/lang/qt/src/decryptverifyjob.cpp
+++ b/lang/qt/src/decryptverifyjob.cpp
@ -0,0 +1,74 @@
+/*
+    decryptverifyjob.cpp
+
+    This file is part of qgpgme, the Qt API binding for gpgme
+    Copyright (c) 2023 g10 Code GmbH
+    Software engineering by Ingo Klöcker <dev@ingo-kloecker.de>
+
+    QGpgME is free software; you can redistribute it and/or
+    modify it under the terms of the GNU General Public License as
+    published by the Free Software Foundation; either version 2 of the
+    License, or (at your option) any later version.
+
+    QGpgME is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+    In addition, as a special exception, the copyright holders give
+    permission to link the code of this program with any edition of
+    the Qt library by Trolltech AS, Norway (or with modified versions
+    of Qt that use the same license as Qt), and distribute linked
+    combinations including the two.  You must obey the GNU General
+    Public License in all respects for all of the code used other than
+    Qt.  If you modify this file, you may extend this exception to
+    your version of the file, but you are not obligated to do so.  If
+    you do not wish to do so, delete this exception statement from
+    your version.
+*/
+
+#ifdef HAVE_CONFIG_H
+ #include "config.h"
+#endif
+
+#include "decryptverifyjob.h"
+#include "decryptverifyjob_p.h"
+
+using namespace QGpgME;
+
+DecryptVerifyJob::DecryptVerifyJob(QObject *parent)
+    : Job{parent}
+{
+}
+
+DecryptVerifyJob::~DecryptVerifyJob() = default;
+
+void DecryptVerifyJob::setInputFile(const QString &path)
+{
+    auto d = jobPrivate<DecryptVerifyJobPrivate>(this);
+    d->m_inputFilePath = path;
+}
+
+QString DecryptVerifyJob::inputFile() const
+{
+    auto d = jobPrivate<DecryptVerifyJobPrivate>(this);
+    return d->m_inputFilePath;
+}
+
+void DecryptVerifyJob::setOutputFile(const QString &path)
+{
+    auto d = jobPrivate<DecryptVerifyJobPrivate>(this);
+    d->m_outputFilePath = path;
+}
+
+QString DecryptVerifyJob::outputFile() const
+{
+    auto d = jobPrivate<DecryptVerifyJobPrivate>(this);
+    return d->m_outputFilePath;
+}
+
+#include "decryptverifyjob.moc"
--- a/Show More
+++ b/Show More