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#! /bin/sh
# Copyright (C) 1998-2012 Free Software Foundation, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# Yet another sources-in-conditional test. Report from Tim Goodwin.
. ./defs || Exit 1
cat >> configure.ac << 'END'
AC_PROG_CC
AM_CONDITIONAL([ONE], [true])
AM_CONDITIONAL([TWO], [false])
AC_OUTPUT
END
cat > Makefile.am << 'END'
bin_PROGRAMS = targ
if ONE
OPT_SRC = one.c
endif
if TWO
OPT_SRC = $(OPT_SRC) two.c
endif
targ_SOURCES = main.c $(OPT_SRC)
END
# The bug is that automake hangs. So we give it an appropriate grace
# time, then kill it if necessary.
$ACLOCAL
$AUTOMAKE 2>stderr &
pid=$!
# MSYS bash seems to have a bug in kill, so don't try to kill too soon;
# and avoid maintainer-check test.
sleep '2'
# Make at most 30 tries, one every 10 seconds (= 300 seconds = 5 min).
try=1
while test $try -le 30; do
if kill -0 $pid; then
: process $pid is still alive, wait and retry
sleep '10'
try=`expr $try + 1`
else
cat stderr >&2
# Automake must fail with a proper error message.
grep 'variable.*OPT_SRC.*recursively defined' stderr
Exit 0
fi
done
# The automake process probably hung. Kill it, and exit with failure.
echo "$me: automake process $pid hung"
kill $pid
Exit 1
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