2 # Copyright (C) 2001-2017 Free Software Foundation, Inc.
4 # This program is free software; you can redistribute it and/or modify
5 # it under the terms of the GNU General Public License as published by
6 # the Free Software Foundation; either version 2, or (at your option)
9 # This program is distributed in the hope that it will be useful,
10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 # GNU General Public License for more details.
14 # You should have received a copy of the GNU General Public License
15 # along with this program. If not, see <http://www.gnu.org/licenses/>.
17 # Check that Automake-generated C compilation rules don't mistakenly
18 # use the "-c -o" options combination unconditionally (even with losing
19 # compilers) when the 'subdir-objects' is used but sources are only
20 # present in the top-level directory. Reported by Nick Bowler in the
21 # discussion on automake bug#13378:
22 # <http://debbugs.gnu.org/cgi/bugreport.cgi?bug=13378#35>
23 # <http://debbugs.gnu.org/cgi/bugreport.cgi?bug=13378#44>
25 required
=gcc
# For cc-no-c-o.
28 cat >> configure.ac
<< 'END'
30 $CC --version; $CC -v; # For debugging.
34 cat > Makefile.am
<< 'END'
35 AUTOMAKE_OPTIONS
= subdir-objects
36 bin_PROGRAMS
= foo bar
40 echo 'int main (void) { return 0; }' > foo.c
42 # Make sure the compiler doesn't understand '-c -o'
43 CC
=$am_testaux_builddir/cc-no-c-o
; export CC
47 $AUTOMAKE --copy --add-missing