[gnome-common] gnome-autogen.sh: Check for appdata-xml.m4 with APPDATA_XML

[David King <davidk src gnome org>]

commit 2a770a34293432872a8c7edac584a72e943f06d2
Author: David King <amigadave amigadave com>
Date:   Mon Dec 16 15:30:45 2013 +0000

    gnome-autogen.sh: Check for appdata-xml.m4 with APPDATA_XML

 macros2/gnome-autogen.sh |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/macros2/gnome-autogen.sh b/macros2/gnome-autogen.sh
index b33b78d..a7d4d83 100644
--- a/macros2/gnome-autogen.sh
+++ b/macros2/gnome-autogen.sh
@@ -306,6 +306,10 @@ for configure_ac in $configure_files; do
         require_m4macro yelp.m4
     fi
 
+    if grep "^APPDATA_XML" $configure_ac >/dev/null; then
+        require_m4macro appdata-xml.m4
+    fi
+
     # check to make sure gnome-common macros can be found ...
     if grep "^GNOME_COMMON_INIT" $configure_ac >/dev/null ||
        grep "^GNOME_DEBUG_CHECK" $configure_ac >/dev/null ||