From 795364d7b79a11cfb2ecea22827c873263730315 Mon Sep 17 00:00:00 2001
From: Sebastian Harl <sh@tokkee.org>
Date: Thu, 17 Feb 2011 09:16:45 +0100
Subject: [PATCH] build system: Use the script version-gen.sh to determine the
 pkg version.

This script tries to get detailed information from Git about the current
version based on the latest reachable tag and git-describe.
---
 Makefile.am    |  2 ++
 configure.ac   |  2 +-
 version-gen.sh | 23 +++++++++++++++++++++++
 3 files changed, 26 insertions(+), 1 deletion(-)
 create mode 100755 version-gen.sh

diff --git a/Makefile.am b/Makefile.am
index 1f529a8..b3bbc9b 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1 +1,3 @@
+EXTRA_DIST = version-gen.sh
+
 SUBDIRS = share src
diff --git a/configure.ac b/configure.ac
index e27fd54..b1bd177 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-AC_INIT(collection, 4.0.0)
+AC_INIT([collection], [m4_esyscmd(./version-gen.sh)])
 AC_CONFIG_SRCDIR(src/main.c)
 AC_CONFIG_HEADERS(src/config.h)
 AM_INIT_AUTOMAKE(dist-bzip2)
diff --git a/version-gen.sh b/version-gen.sh
new file mode 100755
index 0000000..5eafe09
--- /dev/null
+++ b/version-gen.sh
@@ -0,0 +1,23 @@
+#! /bin/sh
+
+DEFAULT_VERSION="4.0.0.git"
+
+VERSION="$( git describe --tags 2> /dev/null \
+	| sed -e 's/^v//' || true )"
+
+if test -z "$VERSION"; then
+	VERSION="$DEFAULT_VERSION"
+else
+	git update-index -q --refresh || true
+	if test -n "$( git diff-index --name-only HEAD || true )"; then
+		VERSION="$VERSION-dirty"
+	fi
+fi
+
+VERSION="$( echo "$VERSION" | sed -e 's/-/./g' )"
+if test "x`uname -s`" = "xAIX" || test "x`uname -s`" = "xSunOS" ; then
+	echo "$VERSION\c"
+else
+	echo -n "$VERSION"
+fi
+
-- 
2.30.2