From bf328a08e5f09ac0ddcd2e728b585301c45de1d3 Mon Sep 17 00:00:00 2001
From: "Suren A. Chilingaryan" <csa@dside.dyndns.org>
Date: Sat, 16 Nov 2013 18:56:30 +0100
Subject: Set CPPFLAGS for GTK1 check to prevent preprocessor complains
 (gtk/gtk.h: accepted by the compiler, rejected by the preprocessor!)

---
 configure.ac | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/configure.ac b/configure.ac
index 86ef382..bff29bb 100644
--- a/configure.ac
+++ b/configure.ac
@@ -108,7 +108,11 @@ else
     
     saved_CFLAGS="$CFLAGS"
     CFLAGS="$CFLAGS `gtk-config --cflags`"
+dnl *** Preprocessor using CPPFLAGS
+    saved_CPPFLAGS="$CPPFLAGS"
+    CPPFLAGS="$CPPFLAGS `gtk-config --cflags`"
     AC_CHECK_HEADER([gtk/gtk.h], [HAVE_GTK=yes], [HAVE_GTK=no])
+    CPPFLAGS=$saved_CPPFLAGS
     CFLAGS=$saved_CFLAGS
 fi
 
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