2 # Copyright (C) 2002, 2004, 2010 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 # Test for PR 307: depcomp with depmode=dashmstdout libtool race condition
18 # Report from Laurent Morichetti.
19 # (Also exercises check_LTLIBRARIES.)
22 # The dashmstdout depmode calls libtool in parallel to generate the
23 # dependencies (with -M flag) and to build the objfile (both have
24 # --mode=compile and -o).
25 # The process with 'libtool --mode=compile .* -M' can corrupt the objfile
26 # as none is generated by the compiler. Since --mode=compile and -o are
27 # set libtool assumes that a objfile should be generated and will execute
28 # invalid $mv & $LN_S.
31 # Now 'depcomp' never compute dependencies in the background, as this can
32 # cause races with libtool. Compute the dependencies after the actual
35 required='libtoolize gcc'
40 cat >> configure.in << 'END'
46 cat > Makefile.am << 'END'
47 check_LTLIBRARIES = librace.la
48 librace_la_SOURCES = a.c b.c c.c d.c e.c f.c g.c h.c
50 # Make sure the dependencies are updated.
52 for i in $(librace_la_SOURCES:.c=.Plo); do \
53 echo "checking ./$(DEPDIR)/$$i"; \
54 grep 'foo\.h' ./$(DEPDIR)/$$i >tst || exit 1; \
55 test `wc -l <tst` -eq 2 || exit 1; \
61 for i in a b c d e f g h; do
64 int $i() { return 0; }
71 $AUTOMAKE -Wno-extra-portability -a
73 # Sanity check: make sure the variable we are attempting to force
74 # is used by configure
75 grep am_cv_CC_dependencies_compiler_type configure
77 ./configure am_cv_CC_dependencies_compiler_type=dashmstdout
80 test -f librace.la && Exit 1
83 # The failure we check usually occurs during the above build,
84 # with an output such as
86 # mv -f .libs/f.lo f.lo
87 # mv: cannot stat `.libs/f.lo': No such file or directory
89 # (This may happen on `f' or on some other files.)
92 test -f tst # a proof that check-local was run