From e0b9e456970e6dd3f0cd63a9f333fac49b424c61 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/libodb.m4  |  6 +++---
 m4/libqt.m4   | 30 +++++++++++++++---------------
 m4/threads.m4 |  6 +++---
 3 files changed, 21 insertions(+), 21 deletions(-)

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/libqt.m4 b/m4/libqt.m4
index ef754a9..44cbd5c 100644
--- a/m4/libqt.m4
+++ b/m4/libqt.m4
@@ -16,8 +16,8 @@ AC_MSG_CHECKING([for QtCore])
 # test allows the user to override the QtCore library name (e.g.,
 # QtCored4) via the LIBS variable.
 #
-CXX_LIBTOOL_LINK_IFELSE(
-AC_LANG_SOURCE([[
+CXX_LIBTOOL_LINK_IFELSE([
+AC_LANG_SOURCE([
 #include <string>
 #include <QtCore/QString>
 
@@ -28,7 +28,7 @@ main ()
   std::string ss (qs.toStdString ());
   return ss.size () != 0;
 }
-]]),
+])],
 [
 libqt_found=yes
 ])
@@ -40,8 +40,8 @@ if test x"$libqt_found" = xno; then
   save_LIBS="$LIBS"
   LIBS="-lQtCore $LIBS"
 
-  CXX_LIBTOOL_LINK_IFELSE(
-AC_LANG_SOURCE([[
+  CXX_LIBTOOL_LINK_IFELSE([
+AC_LANG_SOURCE([
 #include <string>
 #include <QtCore/QString>
 
@@ -52,7 +52,7 @@ main ()
   std::string ss (qs.toStdString ());
   return ss.size () != 0;
 }
-]]),
+])],
 [
 libqt_found=yes
 ])
@@ -69,8 +69,8 @@ if test x"$libqt_found" = xno; then
   save_LIBS="$LIBS"
   LIBS="-framework QtCore $LIBS"
 
-  CXX_LIBTOOL_LINK_IFELSE(
-AC_LANG_SOURCE([[
+  CXX_LIBTOOL_LINK_IFELSE([
+AC_LANG_SOURCE([
 #include <string>
 #include <QtCore/QString>
 
@@ -81,7 +81,7 @@ main ()
   std::string ss (qs.toStdString ());
   return ss.size () != 0;
 }
-]]),
+])],
 [
 libqt_found=yes
 ])
@@ -98,8 +98,8 @@ if test x"$libqt_found" = xno; then
   save_LIBS="$LIBS"
   LIBS="-lQtCore4 $LIBS"
 
-  CXX_LIBTOOL_LINK_IFELSE(
-AC_LANG_SOURCE([[
+  CXX_LIBTOOL_LINK_IFELSE([
+AC_LANG_SOURCE([
 #include <string>
 #include <QtCore/QString>
 
@@ -110,7 +110,7 @@ main ()
   std::string ss (qs.toStdString ());
   return ss.size () != 0;
 }
-]]),
+])],
 [
 libqt_found=yes
 ])
@@ -136,8 +136,8 @@ if test x"$libqt_found" = xno; then
       CPPFLAGS="$CPPFLAGS $save_CPPFLAGS"
       LIBS="$LIBS $save_LIBS"
 
-      CXX_LIBTOOL_LINK_IFELSE(
-AC_LANG_SOURCE([[
+      CXX_LIBTOOL_LINK_IFELSE([
+AC_LANG_SOURCE([
 #include <string>
 #include <QtCore/QString>
 
@@ -148,7 +148,7 @@ main ()
   std::string ss (qs.toStdString ());
   return ss.size () != 0;
 }
-]]),
+])],
 [
 libqt_found=yes
 ])
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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