[PATCH] Fix --with-{lib,}gpg-error-prefix.

[Christian Aistleitner]

* m4/gpg-error.m4: Update from current libgpg-error git.

Signed-off-by: Christian Aistleitner <christian at quelltextlich.at>
---
 m4/gpg-error.m4 | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/m4/gpg-error.m4 b/m4/gpg-error.m4
index eb5d7c4..feb963c 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 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
@@ -14,20 +14,21 @@ dnl                   [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND ]]])
 dnl Test for libgpg-error and define GPG_ERROR_CFLAGS and GPG_ERROR_LIBS
 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 +40,8 @@ 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 $min_gpg_error_version | \
@@ -64,10 +66,9 @@ AC_DEFUN([AM_PATH_GPG_ERROR],
     GPG_ERROR_LIBS=`$GPG_ERROR_CONFIG $gpg_error_config_args --libs`
     AC_MSG_RESULT([yes ($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
@@ -76,7 +77,6 @@ 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
-- 
1.8.1

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