[gtk+] configure.ac: remove check for sigsetjmp(), it belonged to gdk-pixbuf

[Michael Natterer <mitch src gnome org>]

commit 9e2996decd9b1e9985b6b5154d0f4e65923761a5
Author: Michael Natterer <mitch gimp org>
Date:   Tue Sep 21 12:35:37 2010 +0200

    configure.ac: remove check for sigsetjmp(), it belonged to gdk-pixbuf

 configure.ac |   12 ------------
 1 files changed, 0 insertions(+), 12 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 9be6fb8..c695b21 100644
--- a/configure.ac
+++ b/configure.ac
@@ -477,18 +477,6 @@ if test "$gtk_ok" = "yes"; then
 	    [Define if _NL_PAPER_WIDTH is available])
 fi
 
-# sigsetjmp is a macro on some platforms, so AC_CHECK_FUNCS is not reliable
-AC_MSG_CHECKING(for sigsetjmp)
-AC_TRY_LINK([#include <setjmp.h>], [
-sigjmp_buf env;
-sigsetjmp(env, 0);
-], gtk_ok=yes, gtk_ok=no)
-AC_MSG_RESULT($gtk_ok)
-if test "$gtk_ok" = "yes"; then
-  AC_DEFINE(HAVE_SIGSETJMP, 1,
-            [Define to 1 if sigsetjmp is available])
-fi
-
 # i18n stuff
 ALL_LINGUAS="`grep -v '^#' "$srcdir/po/LINGUAS" | tr '\n' ' '`"
 AM_GLIB_GNU_GETTEXT