[seed] fix #64009 - honor ACLOCAL_FLAGS to help jhbuild out

[Alan Knowles <alank src gnome org>]

commit e04b84f579f02f607656c65799e80483b537f8c0
Author: Craig Keogh <cskeogh adam com au>
Date:   Sun Apr 17 20:12:56 2011 +0800

    fix #64009 - honor ACLOCAL_FLAGS to help jhbuild out

 Makefile.am |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/Makefile.am b/Makefile.am
index 3af2962..30613d0 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,6 +1,6 @@
 ## Process this file with automake to produce Makefile.in
 
-ACLOCAL_AMFLAGS = -I m4
+ACLOCAL_AMFLAGS = -I m4 ${ACLOCAL_FLAGS}
 
 SUBDIRS = po \
 	libseed \