From 5181aecc7b87bf638eaec028c9c566ebf38f839d Mon Sep 17 00:00:00 2001
From: James Turner <zakalawe@mac.com>
Date: Sat, 21 May 2011 14:56:10 +0100
Subject: [PATCH] Port version-defined-in-a-file logic over from fg.

---
 CMakeLists.txt |  4 +++-
 configure.ac   | 13 +++++++++----
 version        |  1 +
 3 files changed, 13 insertions(+), 5 deletions(-)
 create mode 100644 version

diff --git a/CMakeLists.txt b/CMakeLists.txt
index b2187a49..489be89c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -6,7 +6,9 @@ include (CPack)
 
 project(SimGear)
 
-set(SIMGEAR_VERSION "2.3.0")
+# read 'version' file into a variable (stripping any newlines or spaces)
+file(READ version versionFile)
+string(STRIP ${versionFile} SIMGEAR_VERSION)
 
 #packaging
 SET(CPACK_RESOURCE_FILE_LICENSE "${PROJECT_SOURCE_DIR}/COPYING")
diff --git a/configure.ac b/configure.ac
index e37cb8ed..9a9b2bb5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,15 +1,17 @@
-dnl Process this file with autoget.sh to produce a working configure
+dnl Process this file with autogen.sh to produce a working configure
 dnl script.
 
-AC_INIT
+AC_INIT(SimGear, m4_esyscmd([cat ./version | tr -d '\n']), [http://www.flightgear.org])
+
+dnl Ensure touching the version causes autoconf to re-run
+AC_SUBST([CONFIGURE_DEPENDENCIES], ['$(top_srcdir)/version'])
+
 AC_CONFIG_SRCDIR([simgear/bucket/newbucket.cxx])
 
 dnl Require at least automake 2.52
 AC_PREREQ(2.52)
 
 dnl Initialize the automake stuff
-AM_INIT_AUTOMAKE(SimGear, 2.3.0)
-
 dnl Specify KAI C++ compiler and flags.
 dnl Borrowed with slight modification from blitz distribution.
 AC_ARG_WITH(cxx,
@@ -23,6 +25,9 @@ AC_ARG_WITH(cxx,
     ;;
   esac
 ])
+dnl set the $host variable based on local machine/os
+AC_CANONICAL_TARGET
+AM_INIT_AUTOMAKE([dist-bzip2])
 
 AC_ARG_ENABLE(headless,
         AS_HELP_STRING([--enable-headless],[Enable only packages for headless build]))
diff --git a/version b/version
new file mode 100644
index 00000000..276cbf9e
--- /dev/null
+++ b/version
@@ -0,0 +1 @@
+2.3.0
-- 
2.39.5