diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 84 |
1 files changed, 82 insertions, 2 deletions
diff --git a/configure.ac b/configure.ac index e1f167f..30aa2cf 100644 --- a/configure.ac +++ b/configure.ac @@ -139,6 +139,8 @@ AH_BOTTOM([ /* For building we need to define these macro. */ #define GPG_ERR_ENABLE_GETTEXT_MACROS 1 #define GPG_ERR_ENABLE_ERRNO_MACROS 1 +/* The prefix for the internal estream functions. */ +#define _ESTREAM_EXT_SYM_PREFIX _gpgrt_ ]) @@ -167,6 +169,74 @@ AC_CHECK_FUNCS([flockfile]) # Checks for typedefs, structures, and compiler characteristics. AC_C_CONST + +# +# Setup gcc specific options +# +AC_MSG_NOTICE([checking for cc features]) +if test "$GCC" = yes; then + # Check whether gcc does not emit a diagnostic for unknown -Wno-* + # options. This is the case for gcc >= 4.6 + AC_MSG_CHECKING([if gcc ignores unknown -Wno-* options]) + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ +#if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 6 ) +#kickerror +#endif]],[])],[_gcc_silent_wno=yes],[_gcc_silent_wno=no]) + AC_MSG_RESULT($_gcc_silent_wno) + + # Note that it is okay to use CFLAGS here because these are just + # warning options and the user should have a chance of overriding + # them. + if test "$USE_MAINTAINER_MODE" = "yes"; then + CFLAGS="$CFLAGS -O3 -Wall -Wcast-align -Wshadow -Wstrict-prototypes" + CFLAGS="$CFLAGS -Wformat -Wno-format-y2k -Wformat-security" + if test x"$_gcc_silent_wno" = xyes ; then + _gcc_wopt=yes + else + AC_MSG_CHECKING([if gcc supports -Wno-missing-field-initializers]) + _gcc_cflags_save=$CFLAGS + CFLAGS="-Wno-missing-field-initializers" + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[])], + [_gcc_wopt=yes],[_gcc_wopt=no]) + AC_MSG_RESULT($_gcc_wopt) + CFLAGS=$_gcc_cflags_save; + fi + if test x"$_gcc_wopt" = xyes ; then + CFLAGS="$CFLAGS -W -Wno-sign-compare -Wno-missing-field-initializers" + fi + + AC_MSG_CHECKING([if gcc supports -Wdeclaration-after-statement]) + _gcc_cflags_save=$CFLAGS + CFLAGS="-Wdeclaration-after-statement" + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[])],_gcc_wopt=yes,_gcc_wopt=no) + AC_MSG_RESULT($_gcc_wopt) + CFLAGS=$_gcc_cflags_save; + if test x"$_gcc_wopt" = xyes ; then + CFLAGS="$CFLAGS -Wdeclaration-after-statement" + fi + else + CFLAGS="$CFLAGS -Wall" + fi + + AC_MSG_CHECKING([if gcc supports -Wpointer-arith]) + _gcc_cflags_save=$CFLAGS + CFLAGS="-Wpointer-arith" + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[])],_gcc_psign=yes,_gcc_psign=no) + AC_MSG_RESULT($_gcc_psign) + CFLAGS=$_gcc_cflags_save; + if test x"$_gcc_psign" = xyes ; then + CFLAGS="$CFLAGS -Wpointer-arith" + fi + + # The undocumented option -Wno-psabi suppresses the annoying + # "the ABI of passing union with long double has changed in GCC 4.4" + # which is emitted in estream-printf.c but entirely irrelvant + # because that union is local to the file. + if test x"$_gcc_silent_wno" = xyes ; then + CFLAGS="$CFLAGS -Wno-psabi" + fi +fi + # # Check whether the compiler supports the GCC style aligned attribute # @@ -182,6 +252,7 @@ if test "$gcry_cv_gcc_attribute_aligned" = "yes" ; then fi +# # Check for thread library. # # Windows has always thread support; thus we don't bother to test for @@ -205,8 +276,14 @@ else fi fi +# +# Prepare building of estream +# +estream_INIT +# # Substitution used for gpg-error-config +# GPG_ERROR_CONFIG_LIBS="-lgpg-error" if test "x$LIBTHREAD" != x; then GPG_ERROR_CONFIG_LIBS="${GPG_ERROR_CONFIG_LIBS} ${LIBTHREAD}" @@ -232,7 +309,9 @@ AC_SUBST(GPG_ERROR_CONFIG_ISUBDIRAFTER) AC_SUBST(GPG_ERROR_CONFIG_HOST) +# # Special defines for certain platforms +# if test "$have_w32_system" = yes; then AC_DEFINE(HAVE_W32_SYSTEM,1,[Defined if we run on a W32 API based system]) if test "$have_w64_system" = yes; then @@ -276,8 +355,9 @@ AC_ARG_ENABLE(languages, [ --disable-languages do not build support for other languages than C]) AM_CONDITIONAL([LANGUAGES_SOME], [test "x$enable_languages" != xno]) - +# # Substitution +# AC_CONFIG_FILES([Makefile]) AC_CONFIG_FILES([po/Makefile.in m4/Makefile]) AC_CONFIG_FILES([src/Makefile tests/Makefile]) @@ -296,7 +376,7 @@ echo " if test "$gcry_cv_gcc_attribute_aligned" != "yes" ; then cat <<G10EOF *** -*** Please not that your compiler does not support the GCC style +*** Please note that your compiler does not support the GCC style *** aligned attribute. Using this software may evoke bus errors. *** G10EOF |