commit ff3878d749591ebf78da532ec1eb6fa00cb5757d
Author: Andreas Schwab <schwab@suse.de>
Date:   Mon Mar 23 11:55:24 2015 +0100

    * configure.ac: Fix jpeg version check to work with gcc >= 5.

--- a/configure.ac
+++ b/configure.ac
@@ -2598,10 +2598,12 @@
   AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
   if test "${HAVE_JPEG}" = "yes"; then
     AC_DEFINE(HAVE_JPEG)
-    AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
-        [#include <jpeglib.h>
-	 version=JPEG_LIB_VERSION
-],
+    AC_EGREP_CPP([version 6b or later],
+	[#include <jpeglib.h>
+	 #if JPEG_LIB_VERSION >= 62
+	 version 6b or later
+	 #endif
+	],
         [AC_DEFINE(HAVE_JPEG)],
         [AC_MSG_WARN([libjpeg found, but not version 6b or later])
         HAVE_JPEG=no])