From 79da0358fd555361e1ce4202f55494a8918eb8ae Mon Sep 17 00:00:00 2001
From: Werner Koch <wk@gnupg.org>
Date: Thu, 9 Jan 2014 19:14:09 +0100
Subject: Update gpg-error autoconf macros to fix threading problems.

* m4/gpg-error.m4: Update to version 2014-01-24.
* tests/Makefile.am (t_lock_LDADD): Use MT Libs.
---
 m4/gpg-error.m4 | 38 +++++++++++++++++++++++++-------------
 1 file changed, 25 insertions(+), 13 deletions(-)

(limited to 'm4')

diff --git a/m4/gpg-error.m4 b/m4/gpg-error.m4
index eb5d7c46..053eceb8 100644
--- a/m4/gpg-error.m4
+++ b/m4/gpg-error.m4
@@ -1,5 +1,5 @@
 # gpg-error.m4 - autoconf macro to detect libgpg-error.
-# Copyright (C) 2002, 2003, 2004 g10 Code GmbH
+# Copyright (C) 2002, 2003, 2004, 2011, 2014 g10 Code GmbH
 #
 # This file is free software; as a special exception the author gives
 # unlimited permission to copy and/or distribute it, with or without
@@ -8,26 +8,33 @@
 # This file is distributed in the hope that it will be useful, but
 # WITHOUT ANY WARRANTY, to the extent permitted by law; without even the
 # implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+#
+# Last-changed: 2014-01-24
+
 
 dnl AM_PATH_GPG_ERROR([MINIMUM-VERSION,
 dnl                   [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND ]]])
-dnl Test for libgpg-error and define GPG_ERROR_CFLAGS and GPG_ERROR_LIBS
+dnl
+dnl Test for libgpg-error and define GPG_ERROR_CFLAGS, GPG_ERROR_LIBS,
+dnl GPG_ERROR_MT_CFLAGS, and GPG_ERROR_MT_LIBS.  The _MT_ variants are
+dnl used for programs requireding real multi thread support.
 dnl
 AC_DEFUN([AM_PATH_GPG_ERROR],
-[
+[ AC_REQUIRE([AC_CANONICAL_HOST])
+  gpg_error_config_prefix=""
   dnl --with-libgpg-error-prefix=PFX is the preferred name for this option,
   dnl since that is consistent with how our three siblings use the directory/
   dnl package name in --with-$dir_name-prefix=PFX.
   AC_ARG_WITH(libgpg-error-prefix,
-            AC_HELP_STRING([--with-libgpg-error-prefix=PFX],
-                           [prefix where GPG Error is installed (optional)]),
-     gpg_error_config_prefix="$withval", gpg_error_config_prefix="")
+              AC_HELP_STRING([--with-libgpg-error-prefix=PFX],
+                             [prefix where GPG Error is installed (optional)]),
+              [gpg_error_config_prefix="$withval"])
 
   dnl Accept --with-gpg-error-prefix and make it work the same as
   dnl --with-libgpg-error-prefix above, for backwards compatibility,
   dnl but do not document this old, inconsistently-named option.
   AC_ARG_WITH(gpg-error-prefix,,
-     gpg_error_config_prefix="$withval", gpg_error_config_prefix="")
+              [gpg_error_config_prefix="$withval"])
 
   if test x$gpg_error_config_prefix != x ; then
      if test x${GPG_ERROR_CONFIG+set} != xset ; then
@@ -39,7 +46,8 @@ AC_DEFUN([AM_PATH_GPG_ERROR],
   min_gpg_error_version=ifelse([$1], ,0.0,$1)
   AC_MSG_CHECKING(for GPG Error - version >= $min_gpg_error_version)
   ok=no
-  if test "$GPG_ERROR_CONFIG" != "no" ; then
+  if test "$GPG_ERROR_CONFIG" != "no" \
+     && test -f "$GPG_ERROR_CONFIG" ; then
     req_major=`echo $min_gpg_error_version | \
                sed 's/\([[0-9]]*\)\.\([[0-9]]*\)/\1/'`
     req_minor=`echo $min_gpg_error_version | \
@@ -62,12 +70,13 @@ AC_DEFUN([AM_PATH_GPG_ERROR],
   if test $ok = yes; then
     GPG_ERROR_CFLAGS=`$GPG_ERROR_CONFIG $gpg_error_config_args --cflags`
     GPG_ERROR_LIBS=`$GPG_ERROR_CONFIG $gpg_error_config_args --libs`
+    GPG_ERROR_MT_CFLAGS=`$GPG_ERROR_CONFIG $gpg_error_config_args --mt --cflags 2>/dev/null`
+    GPG_ERROR_MT_LIBS=`$GPG_ERROR_CONFIG $gpg_error_config_args --mt --libs 2>/dev/null`
     AC_MSG_RESULT([yes ($gpg_error_config_version)])
     ifelse([$2], , :, [$2])
-    if test x"$host" != x ; then
-      gpg_error_config_host=`$GPG_ERROR_CONFIG $gpg_error_config_args --host 2>/dev/null || echo none`
-      if test x"$gpg_error_config_host" != xnone ; then
-        if test x"$gpg_error_config_host" != x"$host" ; then
+    gpg_error_config_host=`$GPG_ERROR_CONFIG $gpg_error_config_args --host 2>/dev/null || echo none`
+    if test x"$gpg_error_config_host" != xnone ; then
+      if test x"$gpg_error_config_host" != x"$host" ; then
   AC_MSG_WARN([[
 ***
 *** The config script $GPG_ERROR_CONFIG was
@@ -76,15 +85,18 @@ AC_DEFUN([AM_PATH_GPG_ERROR],
 *** You may want to use the configure option --with-gpg-error-prefix
 *** to specify a matching config script.
 ***]])
-        fi
       fi
     fi
   else
     GPG_ERROR_CFLAGS=""
     GPG_ERROR_LIBS=""
+    GPG_ERROR_MT_CFLAGS=""
+    GPG_ERROR_MT_LIBS=""
     AC_MSG_RESULT(no)
     ifelse([$3], , :, [$3])
   fi
   AC_SUBST(GPG_ERROR_CFLAGS)
   AC_SUBST(GPG_ERROR_LIBS)
+  AC_SUBST(GPG_ERROR_MT_CFLAGS)
+  AC_SUBST(GPG_ERROR_MT_LIBS)
 ])
-- 
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