Add git revision support.

autogen.sh

@@ -31,6 +31,8 @@ EOF
 linguas=`sed -e '/^#/d' po/LINGUAS`
 if test -d .git/svn; then
  revision=`LC_ALL=C git-svn find-rev HEAD`
+elif test -d .git; then
+ revision=`LC_ALL=C git rev-parse --short HEAD`
 else
  revision=`LC_ALL=C svn info $0 | awk '/^Revision: / {printf "%05d\n",
 $2}'`

configure.in.in

@@ -14,9 +14,9 @@ m4_define([xfce4_panel_version_major], [4])
 m4_define([xfce4_panel_version_minor], [7])
 m4_define([xfce4_panel_version_micro], [0])
 m4_define([xfce4_panel_version_nano],  []) dnl leave this empty to have no nano version
-m4_define([xfce4_panel_version_build], [r@REVISION@])
-m4_define([xfce4_panel_version_tag],   [svn])
-m4_define([xfce4_panel_version], [xfce4_panel_version_major().xfce4_panel_version_minor().xfce4_panel_version_micro()ifelse(xfce4_panel_version_nano(), [], [], [.xfce4_panel_version_nano()])ifelse(xfce4_panel_version_tag(), [svn], [xfce4_panel_version_tag()-xfce4_panel_version_build()], [xfce4_panel_version_tag()])])
+m4_define([xfce4_panel_version_build], [@REVISION@])
+m4_define([xfce4_panel_version_tag],   [git])
+m4_define([xfce4_panel_version], [xfce4_panel_version_major().xfce4_panel_version_minor().xfce4_panel_version_micro()ifelse(xfce4_panel_version_nano(), [], [], [.xfce4_panel_version_nano()])ifelse(xfce4_panel_version_tag(), [git], [xfce4_panel_version_tag()-xfce4_panel_version_build()], [xfce4_panel_version_tag()])])
 
 dnl *******************************************
 dnl *** Debugging support for SVN snapshots ***