[glib-networking] autogen.sh: Ensure we have m4 directory

[Colin Walters <walters src gnome org>]

commit 98135882a37b9675b6658f0d023afd0e9771a1a2
Author: Colin Walters <walters verbum org>
Date:   Wed May 9 18:33:24 2012 -0400

    autogen.sh: Ensure we have m4 directory
    
    This is a regression introduced by the previous commit.

 autogen.sh |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/autogen.sh b/autogen.sh
index 88ce246..e8cfe3e 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -13,6 +13,7 @@ if test -z $AUTORECONF; then
         exit 1
 fi
 
+mkdir -p m4
 autoreconf --force --install --verbose || exit $?
 
 cd "$olddir"