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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/>.
# GNU make allows us to append to undefined variables.
# Also, if we override a variable definition from the command line,
# any '+=' appending to it gets overridden as well.
am_create_testdir=empty
. test-init.sh
cat > Makefile << 'END'
var0 += foo
var1 += bar
var1 += baz
var2 = a
var2 += b
var3 := x
var3 += y
.PHONY: test1 test2
test1:
test x'$(var0)' = x'foo'
test x'$(var1)' = x'bar baz'
test x'$(var2)' = x'a b'
test x'$(var3)' = x'x y'
test2:
test x'$(var0)' = x'mu'
test x'$(var1)' = x
test x'$(var2)' = x'two'
test x'$(var3)' = x'three'
END
checkit ()
{
run_make -E -- "$@" && test ! -s stderr
}
checkit test1
checkit test2 var0=mu var1= var2=two var3=three
:
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