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-rw-r--r--xorgversion.m414
1 files changed, 14 insertions, 0 deletions
diff --git a/xorgversion.m4 b/xorgversion.m4
index 7d3dda8..edfc0fb 100644
--- a/xorgversion.m4
+++ b/xorgversion.m4
@@ -59,3 +59,17 @@ AC_DEFUN([XORG_RELEASE_VERSION],[
[$PVP],
[Patch version of this package])
])
+
+# XORG_CHANGELOG()
+# ----------------
+# Minimum version: 1.2.0
+#
+# Defines the variable CHANGELOG_CMD as the command to generate
+# ChangeLog from git.
+#
+AC_DEFUN([XORG_CHANGELOG], [
+CHANGELOG_CMD="(GIT_DIR=\$(top_srcdir)/.git git log > .changelog.tmp && \
+mv .changelog.tmp ChangeLog) || (rm -f .changelog.tmp; touch ChangeLog; \
+echo 'git directory not found: installing possibly empty changelog.' >&2)"
+AC_SUBST([CHANGELOG_CMD])
+]) # XORG_CHANGELOG