#!/bin/sh
### autogen.sh - tool to help build Emacs from a bzr checkout
-## Copyright (C) 2011 Free Software Foundation, Inc.
+## Copyright (C) 2011-2013 Free Software Foundation, Inc.
## Author: Glenn Morris <rgm@gnu.org>
### Code:
## Tools we need:
+## Note that we respect the values of AUTOCONF etc, like autoreconf does.
progs="autoconf automake"
## Minimum versions we need:
-autoconf_min=`sed -n 's/^ *AC_PREREQ(\([0-9\.]*\)).*/\1/p' configure.in`
+autoconf_min=`sed -n 's/^ *AC_PREREQ(\([0-9\.]*\)).*/\1/p' configure.ac`
-## FIXME how to determine this from the sources?
-automake_min=1.11
+## This will need improving if more options are ever added to the
+## AM_INIT_AUTOMAKE call.
+automake_min=`sed -n 's/^ *AM_INIT_AUTOMAKE(\([0-9\.]*\)).*/\1/p' configure.ac`
## $1 = program, eg "autoconf".
## Also note that we do not handle micro versions.
get_version ()
{
- $1 --version 2>&1 | sed -n '1 s/.* \([1-9][0-9\.]*\).*/\1/p'
+ ## Remove eg "./autogen.sh: line 50: autoconf: command not found".
+ $1 --version 2>&1 | sed -e '/not found/d' -n -e '1 s/.* \([1-9][0-9\.]*\).*/\1/p'
}
## $1 = version string, eg "2.59"
## $1 = program
## $2 = minimum version.
-## Return 0 if program is present with version >= minumum version.
+## Return 0 if program is present with version >= minimum version.
## Return 1 if program is missing.
## Return 2 if program is present but too old.
## Return 3 for unexpected error (eg failed to parse version).
check_version ()
{
- have_version=`get_version $1`
+ ## Respect eg $AUTOMAKE if it is set, like autoreconf does.
+ uprog=`echo $1 | sed 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'`
+
+ eval uprog=\$${uprog}
+
+ [ x"$uprog" = x ] && uprog=$1
+
+ have_version=`get_version $uprog`
[ x"$have_version" = x ] && return 1
## Let autoreconf figure out what, if anything, needs doing.
autoreconf -i -I m4 || exit $?
+## Create a timestamp, so that './autogen.sh; make' doesn't
+## cause 'make' to needlessly run 'autoheader'.
+echo timestamp > src/stamp-h.in || exit
+
echo "You can now run \`./configure'."
exit 0