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#! /bin/sh
# Copyright (C) 2003-2014 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/>.
# Check that double colon rules work.
# This test not only checks that Automake do not mangle double-colon rules
# seen in input Makefile.am, but also that GNU make support of double-colon
# rules is as reliable and well-working as we expect and need.
. test-init.sh
echo AC_OUTPUT >> configure.ac
cat > Makefile.am <<'END'
all-local:
@echo Please select an explicit target; exit 1
# No space after 'a'.
a:: b
echo rule1 >> $@
# Deliberate space after 'a'.
a :: c
echo rule2 >> $@
# Overlapping rules should work as well
a2 :: b2
echo rule21 >> $@
a2 :: c2
echo rule22 >> $@
a2:: b2 c2
echo rule23 >> $@
b2 c2:
touch $@
END
$ACLOCAL
$AUTOCONF
$AUTOMAKE
grep '::' Makefile.in # For debugging.
test $(grep -c '^a *:: *b *$' Makefile.in) -eq 1
test $(grep -c '^a *:: *c *$' Makefile.in) -eq 1
test $(grep -c '^a2 *:: *b2 *$' Makefile.in) -eq 1
test $(grep -c '^a2 *:: *c2 *$' Makefile.in) -eq 1
test $(grep -c '^a2 *:: *b2 *c2 *$' Makefile.in) -eq 1
./configure
# Non-overlapping double-colon rules.
touch b c
$sleep
: > a
$MAKE a
test ! -s a
$sleep
touch b
$MAKE a
test "$(cat a)" = rule1
: > a
$sleep
touch c
$MAKE a
test "$(cat a)" = rule2
: > a
$sleep
touch b c
$MAKE a
test "$(sort a)" = "rule1${nl}rule2"
rm -f a b c
# Overlapping double-colon rules.
$MAKE a2
test -f a2
test -f b2
test -f c2
: > a2
$MAKE a2
test ! -s a2
$sleep
touch b2
$MAKE a2
test "$(sort a2)" = "rule21${nl}rule23"
: > a2
$sleep
touch c2
$MAKE a2
test "$(sort a2)" = "rule22${nl}rule23"
: > a2
$sleep
touch b2 c2
$MAKE a2
test "$(sort a2)" = "rule21${nl}rule22${nl}rule23"
:
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