1#!/bin/sh
2# Copyright 2008 Google Inc.
3# Authors: Craig Silverstein, Lincoln Smith
4#
5# Licensed under the Apache License, Version 2.0 (the "License");
6# you may not use this file except in compliance with the License.
7# You may obtain a copy of the License at
8#
9#      http://www.apache.org/licenses/LICENSE-2.0
10#
11# Unless required by applicable law or agreed to in writing, software
12# distributed under the License is distributed on an "AS IS" BASIS,
13# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14# See the License for the specific language governing permissions and
15# limitations under the License.
16#
17# These are the files that this script might edit:
18#    aclocal.m4 configure Makefile.in src/config.h.in \
19#    depcomp config.guess config.sub install-sh missing mkinstalldirs \
20#    ltmain.sh
21#
22# Here's a command you can run to see what files aclocal will import:
23#  aclocal -I ../autoconf --output=- | sed -n 's/^m4_include..\([^]]*\).*/\1/p'
24
25set -ex
26rm -rf autom4te.cache
27
28trap 'rm -f aclocal.m4.tmp' EXIT
29
30# Use version 1.11 of aclocal and automake if available.
31ACLOCAL=aclocal-1.11
32if test -z `which "$ACLOCAL"`; then
33  ACLOCAL=aclocal
34fi
35
36AUTOMAKE=automake-1.11
37if test -z `which "$AUTOMAKE"`; then
38  AUTOMAKE=automake
39fi
40
41# glibtoolize is used for Mac OS X
42LIBTOOLIZE=libtoolize
43if test -z `which "$LIBTOOLIZE"`; then
44  LIBTOOLIZE=glibtoolize
45fi
46
47# aclocal tries to overwrite aclocal.m4 even if the contents haven't
48# changed, which is annoying when the file is not open for edit (in
49# p4).  We work around this by writing to a temp file and just
50# updating the timestamp if the file hasn't change.
51"$ACLOCAL" --force -I m4 -I gflags/m4 --output=aclocal.m4.tmp
52if cmp aclocal.m4.tmp aclocal.m4; then
53  touch aclocal.m4               # pretend that we regenerated the file
54  rm -f aclocal.m4.tmp
55else
56  mv aclocal.m4.tmp aclocal.m4   # we did set -e above, so we die if this fails
57fi
58
59grep -q LIBTOOL configure.ac && "$LIBTOOLIZE" -c -f
60autoconf -f -W all,no-obsolete
61autoheader -f -W all
62"$AUTOMAKE" -a -c -f -W all
63
64rm -rf autom4te.cache
65exit 0
66