94 lines
2.6 KiB
Bash
94 lines
2.6 KiB
Bash
#! /bin/sh
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# Copyright (C) 2002-2017 Free Software Foundation, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2, or (at your option)
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# any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# Test for PR 307: depcomp with depmode=dashmstdout libtool race condition
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# Report from Laurent Morichetti.
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# (Also exercises check_LTLIBRARIES.)
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#
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# == Report ==
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# The dashmstdout depmode calls libtool in parallel to generate the
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# dependencies (with -M flag) and to build the objfile (both have
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# --mode=compile and -o).
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# The process with 'libtool --mode=compile .* -M' can corrupt the objfile
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# as none is generated by the compiler. Since --mode=compile and -o are
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# set libtool assumes that a objfile should be generated and will execute
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# invalid $mv & $LN_S.
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#
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# == Fix ==
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# Now 'depcomp' never compute dependencies in the background, as this can
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# cause races with libtool. Compute the dependencies after the actual
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# compilation.
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required='libtoolize gcc'
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. test-init.sh
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cat >> configure.ac << 'END'
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AC_PROG_CC
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AM_PROG_AR
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AC_PROG_LIBTOOL
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AC_OUTPUT
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END
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cat > Makefile.am << 'END'
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check_LTLIBRARIES = librace.la
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librace_la_SOURCES = a.c b.c c.c d.c e.c f.c g.c h.c
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# Make sure the dependencies are updated.
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check-local:
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for i in $(librace_la_SOURCES:.c=.Plo); do \
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echo "checking ./$(DEPDIR)/$$i"; \
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grep 'foo\.h' ./$(DEPDIR)/$$i >tst || exit 1; \
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test `wc -l <tst` -eq 2 || exit 1; \
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done
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END
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: >foo.h
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for i in a b c d e f g h; do
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unindent >$i.c <<EOF
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#include "foo.h"
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int $i () { return 0; }
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EOF
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done
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libtoolize --force
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$ACLOCAL
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$AUTOCONF
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$AUTOMAKE -a
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# Sanity check: make sure the variable we are attempting to force
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# is indeed used by configure.
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grep am_cv_CC_dependencies_compiler_type configure
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./configure am_cv_CC_dependencies_compiler_type=dashmstdout
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$MAKE
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test -f librace.la && exit 1
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$MAKE check
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# The failure we check usually occurs during the above build,
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# with an output such as:
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#
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# mv -f .libs/f.lo f.lo
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# mv: cannot stat '.libs/f.lo': No such file or directory
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#
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# (This may happen on 'f' or on some other files.)
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test -f librace.la
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test -f tst # A proof that check-local was run.
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:
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