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#! /bin/sh
# Copyright (C) 2012-2014 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/>.
# Dependency tracking:
# - we can recover if any .Po file in $(DEPDIR) gets removed;
# - in fact, we can recover if the whole $(DEPDIR) directory gets
# removed.
required=cc
. test-init.sh
cat >> configure.ac <<'END'
AC_PROG_CC
AC_CONFIG_FILES([sub/Makefile])
AC_OUTPUT
END
cat > Makefile.am <<'END'
SUBDIRS = . sub
noinst_PROGRAMS = foo
foo_SOURCES = main.c foo.c foo.h
get-depdir:
@echo '$(DEPDIR)'
END
cat > main.c <<'END'
#include "foo.h"
int main (void)
{
return foo ();
}
END
cat > foo.c <<'END'
#include "foo.h"
int foo (void)
{
return 0;
}
END
echo 'int foo (void);' > foo.h
mkdir sub sub/src
cat > sub/Makefile.am <<'END'
noinst_PROGRAMS = foo
foo_SOURCES = src/main.c src/foo.c src/foo.h
END
cp main.c foo.c foo.h sub/src
$ACLOCAL
$AUTOCONF
$AUTOMAKE -a
for vpath in : false; do
if $vpath; then
srcdir=..
mkdir build
cd build
else
srcdir=.
fi
$srcdir/configure --enable-dependency-tracking
$MAKE
depdir=$($MAKE -s --no-print-directory get-depdir) \
&& test -n "$depdir" \
&& test -d $depdir \
&& test -d sub/src/$depdir \
|| fatal_ "cannot find the depdir"
for remove_stuff in \
"rm -f $depdir/main.Po" \
"rm -f sub/src/$depdir/foo.Po" \
"rm -rf $depdir" \
"rm -rf $depdir sub/src/$depdir" \
; do
$remove_stuff
# We can still use make and order a build, even if we have probably
# lost the dependency information registered in removed the .Po files.
# TODO: maybe we should detect such a situation and force a clean
# TODO: rebuild?
$MAKE
# But if we force a rebuild by hand by cleaning out the existing
# objects, everything works out as expected.
$MAKE clean
$MAKE
test -f $depdir/main.Po
test -f $depdir/foo.Po
test -f sub/src/$depdir/main.Po
test -f sub/src/$depdir/foo.Po
done
cd $srcdir
done
:
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