From de82dd16a013979d9ff69a5f176348607db49342 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Wed, 6 Feb 2013 07:43:11 +0200
Subject: Fix incorrect AC_LANG_SOURCE quoting

Thanks to Hugo Mildenberger <Hugo.Mildenberger@web.de> for the patch.
---
 m4/libmysqlclient.m4 | 18 +++++++++---------
 m4/libodb.m4         |  6 +++---
 m4/threads.m4        |  6 +++---
 3 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/m4/libmysqlclient.m4 b/m4/libmysqlclient.m4
index f75acc9..3148f26 100644
--- a/m4/libmysqlclient.m4
+++ b/m4/libmysqlclient.m4
@@ -33,8 +33,8 @@ if test x"path" != xnone; then
   LDFLAGS="$LDFLAGS -L$path"
 fi
 
-CXX_LIBTOOL_LINK_IFELSE(
-AC_LANG_SOURCE([[
+CXX_LIBTOOL_LINK_IFELSE([
+AC_LANG_SOURCE([
 #ifdef _WIN32
 #  include <winsock2.h>
 #endif
@@ -50,7 +50,7 @@ main ()
   mysql_stmt_close (stmt);
   mysql_close (&handle);
 }
-]]),
+])],
 [
 libmysqlclient_found=yes
 libmysqlclient_include=long
@@ -60,8 +60,8 @@ if test x"$libmysqlclient_found" = xyes; then
   break;
 fi
 
-CXX_LIBTOOL_LINK_IFELSE(
-AC_LANG_SOURCE([[
+CXX_LIBTOOL_LINK_IFELSE([
+AC_LANG_SOURCE([
 #ifdef _WIN32
 #  include <winsock2.h>
 #endif
@@ -77,7 +77,7 @@ main ()
   mysql_stmt_close (stmt);
   mysql_close (&handle);
 }
-]]),
+])],
 [
 libmysqlclient_found=yes
 libmysqlclient_include=short
@@ -111,8 +111,8 @@ libmysqlclient_thr_key_visible=no
 
 if test x"$libmysqlclient_found" = xyes -a x"$1" = xposix; then
 
-CXX_LIBTOOL_LINK_IFELSE(
-AC_LANG_SOURCE([[
+CXX_LIBTOOL_LINK_IFELSE([
+AC_LANG_SOURCE([
 #include <pthread.h>
 extern pthread_key_t THR_KEY_mysys;
 int
@@ -120,7 +120,7 @@ main ()
 {
   return pthread_getspecific (THR_KEY_mysys) != 0;
 }
-]]),
+])],
 [
 libmysqlclient_thr_key_visible=yes
 ])
diff --git a/m4/libodb.m4 b/m4/libodb.m4
index 6e282a6..7d3130b 100644
--- a/m4/libodb.m4
+++ b/m4/libodb.m4
@@ -31,8 +31,8 @@ fi
 save_LIBS="$LIBS"
 LIBS="-lodb $LIBS"
 
-CXX_LIBTOOL_LINK_IFELSE(
-AC_LANG_SOURCE([[
+CXX_LIBTOOL_LINK_IFELSE([
+AC_LANG_SOURCE([
 #include <odb/exception.hxx>
 
 void
@@ -60,7 +60,7 @@ main ()
   const char* m (g ());
   return m != 0;
 }
-]]),
+])],
 [libodb_found=yes])
 
 if test x"$libodb_found" = xno; then
diff --git a/m4/threads.m4 b/m4/threads.m4
index fce3f39..4cd4c05 100644
--- a/m4/threads.m4
+++ b/m4/threads.m4
@@ -36,8 +36,8 @@ if test x$threads = xcheck; then
         #
         AC_MSG_CHECKING([for __thread keyword])
 
-        CXX_LIBTOOL_LINK_IFELSE(
-          AC_LANG_SOURCE([[
+        CXX_LIBTOOL_LINK_IFELSE([
+          AC_LANG_SOURCE([
             __thread int tls_var;
 
             int
@@ -45,7 +45,7 @@ if test x$threads = xcheck; then
             {
               tls_var = 0;
             }
-          ]]),
+          ])],
           [threads_thread_keyword=yes])
 
         AC_MSG_RESULT([$threads_thread_keyword])
-- 
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