configure.ac: do not use shell eval for known values

The version parts are known at Autoconf time, thus it makes no
sense to do string manipulation using the user's shell.

Just dnl the V_EXTRA definition when there's no extra version.

Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

diff --git a/configure.ac b/configure.ac
index 7dcaab85eaa7cf1815b988b13132b6574a9c91a0..9f238774304e550f6afb2d3934135c07aaded32e 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -1,7 +1,14 @@
 #                                               -*- Autoconf -*-
 # Process this file with autoconf to produce a configure script.
 
-AC_INIT([lttng-ust],[2.8.0-pre],[mathieu dot desnoyers at efficios dot com])
+m4_define([V_MAJOR], [2])
+m4_define([V_MINOR], [8])
+m4_define([V_PATCH], [0])
+m4_define([V_EXTRA], [pre])
+m4_define([V_STRING], [V_MAJOR.V_MINOR.V_PATCH])
+m4_ifdef([V_EXTRA], [m4_append([V_STRING], [-V_EXTRA])])
+
+AC_INIT([lttng-ust],V_STRING,[mathieu dot desnoyers at efficios dot com])
 
 # Following the numbering scheme proposed by libtool for the library version
 # http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
@@ -29,17 +36,11 @@ AH_TEMPLATE([LTTNG_UST_HAVE_EFFICIENT_UNALIGNED_ACCESS], [Use efficient unaligne
 AH_TEMPLATE([LTTNG_UST_HAVE_SDT_INTEGRATION], [SystemTap integration via sdt.h])
 AH_TEMPLATE([LTTNG_UST_HAVE_PERF_EVENT], [Perf event integration via perf_event.h])
 
-# Compute minor/major/patchlevel version numbers
+# Substitute minor/major/patchlevel version numbers
 AC_PROG_SED
-major_version=$(echo AC_PACKAGE_VERSION | sed 's/^\([[0-9]]\)*\.[[0-9]]*\.[[0-9]]*.*$/\1/')
-minor_version=$(echo AC_PACKAGE_VERSION | sed 's/^[[0-9]]*\.\([[0-9]]*\)\.[[0-9]]*.*$/\1/')
-patchlevel_version=$(echo AC_PACKAGE_VERSION | sed 's/^[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\).*$/\1/')
-AC_SUBST([MAJOR_VERSION], [$major_version])
-AC_SUBST([MINOR_VERSION], [$minor_version])
-AC_SUBST([PATCHLEVEL_VERSION], [$patchlevel_version])
-AC_DEFINE_UNQUOTED([VERSION_MAJOR], $major_version, [UST major version number])
-AC_DEFINE_UNQUOTED([VERSION_MINOR], $minor_version, [UST minor version number])
-AC_DEFINE_UNQUOTED([VERSION_PATCHLEVEL], $patchlevel_version, [UST patchlevel version number])
+AC_SUBST([MAJOR_VERSION], [V_MAJOR])
+AC_SUBST([MINOR_VERSION], [V_MINOR])
+AC_SUBST([PATCHLEVEL_VERSION], [V_PATCH])
 
 version_name="Herbe à Détourne"
 version_description='Brewed with unrestrained amounts of Citra hop, the Herbe à Détourne is a fantastic New World Tripel brewed by "Dieu du Ciel!". Aromas of mango, cantaloupe melon and passion fruit, combined with a controlled bitter finish, unite in making this smooth golden-orange beer stand apart.'