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Diffstat (limited to 't/spy-var-append.sh')
-rw-r--r-- | t/spy-var-append.sh | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/t/spy-var-append.sh b/t/spy-var-append.sh new file mode 100644 index 000000000..28129d90e --- /dev/null +++ b/t/spy-var-append.sh @@ -0,0 +1,57 @@ +#! /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 + +: |