[mousetrap/ng] Changelog generated by the make file

[Flavio Percoco <flaper src gnome org>]

commit 16897e6cf67234b9fab21b51d7b46e7413f22991
Author: Flavio Percoco Premoli <flaper87 gmail com>
Date:   Sun May 10 07:20:06 2009 +0200

    Changelog generated by the make file
---
 Makefile.am |   14 ++++++++++++++
 1 files changed, 14 insertions(+), 0 deletions(-)

diff --git a/Makefile.am b/Makefile.am
index a33760f..35ceaa1 100755
--- a/Makefile.am
+++ b/Makefile.am
@@ -22,6 +22,20 @@ update-icon-cache:
 		echo "***   $(gtk_update_icon_cache)"; \
 	fi
 
+dist-hook:
+		@if test -d "$(srcdir)/.git"; \
+		then \
+				echo Creating ChangeLog && \
+				( cd "$(top_srcdir)" && \
+					echo '# Generated by Makefile. Do not edit.'; echo; \
+					$(top_srcdir)/missing --run git log --stat ) > ChangeLog.tmp \
+					&& mv -f ChangeLog.tmp $(top_distdir)/ChangeLog \
+					|| ( rm -f ChangeLog.tmp ; \
+					echo Failed to generate ChangeLog >&2 ); \
+		else \
+				echo A git clone is required to generate a ChangeLog >&2; \
+		fi
+
 desktopdir 	 = $(datadir)/applications
 desktop_in_files = mousetrap.desktop.in
 desktop_DATA     = $(desktop_in_files:.desktop.in=.desktop)