Preparing for a release

2 files changed, 44 insertions, 7 deletions

diff --git a/m4/ChangeLog b/m4/ChangeLog
index d6ac513e5..efcded757 100644
--- a/m4/ChangeLog
+++ b/m4/ChangeLog
@@ -1,3 +1,7 @@
+2004-03-06  Werner Koch  <wk@gnupg.org>
+
+	* libgcrypt.m4: Updated.
+
 2004-02-18  Werner Koch  <wk@gnupg.org>
 
 	* gpg-error.m4, libgcrypt.m4, libassuan.m4, ksba.m4: New.
diff --git a/m4/libgcrypt.m4 b/m4/libgcrypt.m4
index 0e8ab5803..e5f2a43c0 100644
--- a/m4/libgcrypt.m4
+++ b/m4/libgcrypt.m4
@@ -1,5 +1,5 @@
 dnl Autoconf macros for libgcrypt
-dnl       Copyright (C) 2002 Free Software Foundation, Inc.
+dnl       Copyright (C) 2002, 2004 Free Software Foundation, Inc.
 dnl
 dnl This file is free software; as a special exception the author gives
 dnl unlimited permission to copy and/or distribute it, with or without
@@ -12,7 +12,13 @@ dnl implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 
 dnl AM_PATH_LIBGCRYPT([MINIMUM-VERSION,
 dnl                   [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND ]]])
-dnl Test for liblibgcrypt and define LIBGCRYPT_CFLAGS and LIBGCRYPT_LIBS
+dnl Test for libgcrypt and define LIBGCRYPT_CFLAGS and LIBGCRYPT_LIBS.
+dnl MINIMUN-VERSION is a string with the version number optionalliy prefixed
+dnl with the API version to also check the API compatibility. Example:
+dnl a MINIMUN-VERSION of 1:1.2.5 won't pass the test unless the installed 
+dnl version of libgcrypt is at least 1.2.5 *and* the API number is 1.  Using
+dnl this features allows to prevent build against newer versions of libgcrypt
+dnl with a changed API.
 dnl
 AC_DEFUN(AM_PATH_LIBGCRYPT,
 [ AC_ARG_WITH(libgcrypt-prefix,
@@ -26,7 +32,15 @@ AC_DEFUN(AM_PATH_LIBGCRYPT,
   fi
 
   AC_PATH_PROG(LIBGCRYPT_CONFIG, libgcrypt-config, no)
-  min_libgcrypt_version=ifelse([$1], ,0.4.4,$1)
+  tmp=ifelse([$1], ,1:1.2.0,$1)
+  if echo "$tmp" | grep ':' >/dev/null 2>/dev/null ; then
+     req_libgcrypt_api=`echo "$tmp"     | sed 's/\(.*\):\(.*\)/\1/'`
+     min_libgcrypt_version=`echo "$tmp" | sed 's/\(.*\):\(.*\)/\2/'`
+  else
+     req_libgcrypt_api=0
+     min_libgcrypt_version="$tmp"
+  fi
+
   AC_MSG_CHECKING(for LIBGCRYPT - version >= $min_libgcrypt_version)
   ok=no
   if test "$LIBGCRYPT_CONFIG" != "no" ; then
@@ -36,7 +50,7 @@ AC_DEFUN(AM_PATH_LIBGCRYPT,
                sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\)/\2/'`
     req_micro=`echo $min_libgcrypt_version | \
                sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\)/\3/'`
-    libgcrypt_config_version=`$LIBGCRYPT_CONFIG $libgcrypt_config_args --version`
+    libgcrypt_config_version=`$LIBGCRYPT_CONFIG --version`
     major=`echo $libgcrypt_config_version | \
                sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\).*/\1/'`
     minor=`echo $libgcrypt_config_version | \
@@ -60,14 +74,33 @@ AC_DEFUN(AM_PATH_LIBGCRYPT,
     fi
   fi
   if test $ok = yes; then
-    LIBGCRYPT_CFLAGS=`$LIBGCRYPT_CONFIG $libgcrypt_config_args --cflags`
-    LIBGCRYPT_LIBS=`$LIBGCRYPT_CONFIG $libgcrypt_config_args --libs`
     AC_MSG_RESULT(yes)
+  else
+    AC_MSG_RESULT(no)
+  fi
+  if test $ok = yes; then
+     # If we have a recent libgcrypt, we should also check that the
+     # API is compatible
+     if test "$req_libgcrypt_api" -gt 0 ; then
+        tmp=`$LIBGCRYPT_CONFIG --api-version 2>/dev/null || echo 0`
+        if test "$tmp" -gt 0 ; then
+           AC_MSG_CHECKING([LIBGCRYPT API version])
+           if test "$req_libgcrypt_api" -eq "$tmp" ; then
+             AC_MSG_RESULT(okay)
+           else
+             ok=no
+             AC_MSG_RESULT([does not match (want=$req_libgcrypt_api got=$tmp)])
+           fi
+        fi
+     fi
+  fi
+  if test $ok = yes; then
+    LIBGCRYPT_CFLAGS=`$LIBGCRYPT_CONFIG --cflags`
+    LIBGCRYPT_LIBS=`$LIBGCRYPT_CONFIG --libs`
     ifelse([$2], , :, [$2])
   else
     LIBGCRYPT_CFLAGS=""
     LIBGCRYPT_LIBS=""
-    AC_MSG_RESULT(no)
     ifelse([$3], , :, [$3])
   fi
   AC_SUBST(LIBGCRYPT_CFLAGS)