[tracker: 48/49] configure: Use AC_USE_SYSTEM_EXTENSIONS before m4 dir to avoid warnings

[Martyn James Russell <mr src gnome org>]

commit 14f9b1c18a88c87644eaaf889e27fb8dce19e415
Author: Martyn Russell <martyn lanedo com>
Date:   Tue Aug 12 20:22:02 2014 +0100

    configure: Use AC_USE_SYSTEM_EXTENSIONS before m4 dir to avoid warnings

 configure.ac |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index a33a806..093e679 100644
--- a/configure.ac
+++ b/configure.ac
@@ -46,6 +46,10 @@ AC_INIT([tracker],
         [tracker],
         [http://www.tracker-project.org])
 
+# Available since autoconf 2.60, implies _GNU_SOURCE and extensions if available.
+# See: https://www.gnu.org/software/autoconf/manual/autoconf-2.64/html_node/Posix-Variants.html
+AC_USE_SYSTEM_EXTENSIONS
+
 AC_CONFIG_SRCDIR([src/tracker-store/tracker-main.vala])
 AC_CONFIG_AUX_DIR([build-aux])
 AC_CONFIG_MACRO_DIR([m4])
@@ -107,10 +111,6 @@ AC_SUBST(LT_REVISION)
 AC_SUBST(LT_AGE)
 AC_SUBST(LT_CURRENT_MINUS_AGE)
 
-# Available since autoconf 2.60, implies _GNU_SOURCE and extensions if available.
-# See: https://www.gnu.org/software/autoconf/manual/autoconf-2.64/html_node/Posix-Variants.html
-AC_USE_SYSTEM_EXTENSIONS
-
 # Checks for programs.
 AC_PROG_CXX
 AC_PROG_AWK