From ff258f1bc1ba8dc58a7c061c310d2c6100817a91 Mon Sep 17 00:00:00 2001
From: Nikias Bassen
Date: Fri, 21 Apr 2023 16:38:08 +0200
Subject: autoconf: Automatically derive version number from latest git tag

---
 configure.ac | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index 58d6585..ca69d32 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,8 +1,8 @@
 #                                               -*- Autoconf -*-
 # Process this file with autoconf to produce a configure script.
 
-AC_PREREQ(2.68)
-AC_INIT([libimobiledevice-glue], [1.0.0], [https://github.com/libimobiledevice/libimobiledevice-glue/issues],, [https://libimobiledevice.org])
+AC_PREREQ([2.68])
+AC_INIT([libimobiledevice-glue], [m4_esyscmd(./git-version-gen $RELEASE_VERSION)], [https://github.com/libimobiledevice/libimobiledevice-glue/issues], [], [https://libimobiledevice.org])
 AM_INIT_AUTOMAKE([dist-bzip2 no-dist-gzip check-news])
 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES])
 AC_CONFIG_SRCDIR([src/])
@@ -17,6 +17,11 @@ dnl libtool versioning
 # CURRENT : REVISION : AGE
 LIBIMOBILEDEVICE_GLUE_SO_VERSION=0:0:0
 
+# Check if we have a version defined
+if test -z $PACKAGE_VERSION; then
+  AC_MSG_ERROR([PACKAGE_VERSION is not defined. Make sure to configure a source tree checked out from git or that .tarball-version is present.])
+fi
+
 dnl Minimum package versions
 LIBPLIST_VERSION=2.3.0
 
-- 
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