[gtk+/gtk-2-18] Don't ignore SIGPIPE unless it exists

[Tor Lillqvist <tml src gnome org>]

commit 0ba0899b102a606bda99651858a5aa474a913163
Author: Tor Lillqvist <tml iki fi>
Date:   Thu Oct 8 15:15:35 2009 +0300

    Don't ignore SIGPIPE unless it exists

 gtk/gtkmain.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkmain.c b/gtk/gtkmain.c
index 2bbc96d..645da6f 100644
--- a/gtk/gtkmain.c
+++ b/gtk/gtkmain.c
@@ -686,7 +686,9 @@ do_post_parse_initialization (int    *argc,
 
   gettext_initialization ();
 
+#ifdef SIGPIPE
   signal (SIGPIPE, SIG_IGN);
+#endif
 
   if (g_fatal_warnings)
     {