From 327af90594204db9683fcee5c8c6b8098c8da37a Mon Sep 17 00:00:00 2001
From: Werner Koch <wk@gnupg.org>
Date: Tue, 8 Mar 2011 12:23:59 +0100
Subject: Require libgcrypt 1.5

Without Libgcrypt 1.5 is was not possible to use ECC keys.  ECC is
major new feature and thus it does not make sense to allow building
with an older Libgcrypt without supporting ECC.

Also fixed a few missing prototypes.
---
 configure.ac | 40 +++-------------------------------------
 1 file changed, 3 insertions(+), 37 deletions(-)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index e372d33ad..f265dc393 100644
--- a/configure.ac
+++ b/configure.ac
@@ -43,7 +43,7 @@ development_version=no
 NEED_GPG_ERROR_VERSION=1.8
 
 NEED_LIBGCRYPT_API=1
-NEED_LIBGCRYPT_VERSION=1.4.6
+NEED_LIBGCRYPT_VERSION=1.5.0
 
 NEED_LIBASSUAN_API=2
 NEED_LIBASSUAN_VERSION=2.0.0
@@ -742,40 +742,6 @@ AM_PATH_GPG_ERROR("$NEED_GPG_ERROR_VERSION",
 AM_PATH_LIBGCRYPT("$NEED_LIBGCRYPT_API:$NEED_LIBGCRYPT_VERSION",
         have_libgcrypt=yes,have_libgcrypt=no)
 
-# fixme:  We can remove the next two checks if we require libgcrypt 1.5.
-AC_CACHE_CHECK([whether Libgcrypt support ECDH], gnupg_cv_gcry_pk_ecdh,
-               [ _gnupg_gcry_save_cflags=$CFLAGS
-                 CFLAGS="$CFLAGS $LIBGCRYPT_CFLAGS"
-                 AC_TRY_COMPILE(
-                   [#include <gcrypt.h>],
-                   [ return GCRY_PK_ECDH; ],
-                   gnupg_cv_gcry_pk_ecdh=yes,
-                   gnupg_cv_gcry_pk_ecdh=no)
-                 CFLAGS=$_gnupg_gcry_save_cflags])
-if test "$gnupg_cv_gcry_pk_ecdh" = yes; then
-  AC_DEFINE([HAVE_GCRY_PK_ECDH], 1,
-            [Define if gcrypt.h has the enum value for ECDH.])
-fi
-
-AC_CACHE_CHECK([whether Libgcrypt has gcry_pk_get_curve],
-                gnupg_cv_gcry_pk_get_curve,
-               [ _gnupg_gcry_save_cflags=$CFLAGS
-                 _gnupg_gcry_save_libs=$LIBS
-                 CFLAGS="$CFLAGS $LIBGCRYPT_CFLAGS"
-                 LIBS="$LIBS $LIBGCRYPT_LIBS"
-                 AC_TRY_LINK(
-                   [#include <gcrypt.h>],
-                   [ return gcry_pk_get_curve (NULL, 0, NULL); ],
-                   gnupg_cv_gcry_pk_get_curve=yes,
-                   gnupg_cv_gcry_pk_get_curve=no)
-                 LIBS=$_gnupg_gcry_save_libs
-                 CFLAGS=$_gnupg_gcry_save_cflags])
-if test "$gnupg_cv_gcry_pk_get_curve" = yes; then
-  AC_DEFINE([HAVE_GCRY_PK_GET_CURVE], 1,
-            [Define if gcrypt.h has gcry_pk_get_curve.])
-fi
-
-
 #
 # libassuan is used for IPC
 #
@@ -1172,7 +1138,7 @@ fi
 AC_MSG_NOTICE([checking for header files])
 AC_HEADER_STDC
 AC_CHECK_HEADERS([string.h unistd.h langinfo.h termio.h locale.h getopt.h \
-                  pty.h pwd.h inttypes.h signal.h])
+                  pty.h utmp.h pwd.h inttypes.h signal.h])
 AC_HEADER_TIME
 
 
@@ -1636,7 +1602,7 @@ if test "$have_libgcrypt" = "no"; then
 ***
 *** You need libgcrypt to build this program.
 **  This library is for example available at
-***   ftp://ftp.gnupg.org/gcrypt/libgcrypt/
+***   ftp://ftp.gnupg.org/gcrypt/alpha/libgcrypt/
 *** (at least version $NEED_LIBGCRYPT_VERSION using API $NEED_LIBGCRYPT_API is required.)
 ***]])
 fi
-- 
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