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#! /bin/sh
# Copyright (C) 2010-2021 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 <https://www.gnu.org/licenses/>.
# Test remake rules when aclocal.m4 or its prerequisites change.
# Keep in sync with the other sister tests 'remake-after-*.sh'.
. test-init.sh
magic1=::MagicStringOne::
magic2=__MagicStringTwo__
if using_gmake; then
remake_() { $MAKE nil; }
else
remake_() { $MAKE Makefile && $MAKE foo.sh; }
fi
cat >> configure.ac <<END
FINGERPRINT='my_fingerprint'
AC_SUBST([FINGERPRINT])
AC_CONFIG_FILES([foo.sh:foo.in], [chmod a+x foo.sh])
AC_OUTPUT
END
cat > Makefile.am <<'END'
nil:
.PHONY: nil
# A non-autogenerated aclocal.m4 can be extended by hand.
$(srcdir)/aclocal.m4: $(srcdir)/tweak-aclocal-m4
$(SHELL) $(srcdir)/tweak-aclocal-m4 <$@ >$@-t
mv -f $@-t $@
touch $@
EXTRA_DIST = $(srcdir)/tweak-aclocal-m4
# Used by "make distcheck" later.
check-local:
test x'$(FINGERPRINT)' = x'DummyValue'
test x"`./foo.sh`" = x"DummyValue"
END
cat > foo.in <<END
#!/bin/sh
echo '@FINGERPRINT@'
END
echo cat > tweak-aclocal-m4 # It is a no-op by default.
$ACLOCAL
# Cheatingly mark aclocal.m4 as non auto-generated.
sed '/^ *#.*generated automatically/d' aclocal.m4 > t
mv -f t aclocal.m4
$AUTOCONF
$AUTOMAKE
for vpath in : false; do
if $vpath; then
mkdir build
cd build
srcdir=..
else
srcdir=.
fi
$srcdir/configure
$MAKE # Should be a no-op.
$sleep
echo "AC_DEFUN([my_fingerprint], [$magic1])dnl %%%" >> $srcdir/aclocal.m4
remake_
$FGREP FINGERPRINT Makefile # For debugging.
$FGREP $magic1 Makefile
test x"$(./foo.sh)" = x"$magic1"
$sleep
echo "sed 's/.*dnl *%%%.*/AC_DEFUN([my_fingerprint], [$magic2])/'" \
> $srcdir/tweak-aclocal-m4
remake_
$FGREP FINGERPRINT Makefile # For debugging.
$FGREP $magic1 Makefile && exit 1
$FGREP $magic2 Makefile
test x"$(./foo.sh)" = x"$magic2"
$sleep
echo cat > $srcdir/tweak-aclocal-m4 # Make it a no-op again.
echo 'AC_DEFUN([my_fingerprint], [DummyValue])' >> $srcdir/aclocal.m4
using_gmake || remake_
$MAKE distcheck
$FGREP $magic1 Makefile && exit 1 # Sanity check.
$FGREP $magic2 Makefile && exit 1 # Likewise.
$MAKE distclean
cd $srcdir
done
:
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