kc3-lang/automake/t/backcompat3.sh
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Hash : c2a52bf0
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Date : 2012-06-24T10:36:15
tests: simpler workaround for shells losing the exit status in exit trap Now that we can assume our tests are run by a decent POSIX shell, we can simplify our workaround aimed at having the exit status propagated correctly to the code in the exit trap. Unfortunately, we cannot dispense with such a workaround altogether, because it's still required by some shells we need to support (at least Solaris 10 /bin/ksh and /usr/xpg4/bin/sh). For more information about the need of that workaround, see the entry about 'trap' in the section "Limitations of Shell Builtins" in the Autoconf manual: <http://www.gnu.org/software/autoconf/manual/autoconf.html#trap> The new workaround has been tested successfully with the following shells: - Bash 4.1 - Bash 3.2 - Bash 3.0 - Bash 2.05b - dash 0.5.5.1 - dash 0.5.2 - AT&T Ksh 93u (from official Debian package) - MirBSD Korn Shell 40.2 (from official Debian package) - Solaris 9, 10 and 11 /bin/ksh - Solaris 9, 10 and 11 /usr/xpg4/bin/sh - NetBSD 5.1 /bin/sh - NetBSD 5.1 /bin/ksh * t/ax/test-init.sh (Exit): Rename ... (_am_exit): ... like this. (exit): New alias for '_am_exit'. We cannot simply redefine 'exit' as a shell function, because some shells (dash 0.5.5.1, Solaris 10 /bin/ksh and /usr/xpg4/bin/sh) do not allow it. (_am_exit, trap): Add extra escaping for 'exit' calls, to ensure we really invoke the 'exit' builtin and not our alias with the same name. * configure.ac: Check that the shell selected to run our testsuite supports aliases named like shell builtins. * t/REAMDE: Adjust. * All tests: Adjust, by simply using 'exit' instead of 'Exit'. * t/self-check-explicit-skips.sh: Adjust: the first usage of 'exit' after it has been redefined as an alias must be on a new line w.r.t. that where the alias is defined, in order for the redefinition to be honored. * syntax-checks.mk (sc_tests_Exit_not_exit): Delete. (sc_tests_exit_not_Exit): New. (syntax_check_rules): Adjust. (sc_tests_automake_fails): Simplify the recipe a little. * Several tests: Remove now useless spurious quoting once required to placate the 'sc_tests_Exit_not_exit' maintainer check. * gen-testsuite-part: Likewise. Also, avoid uses of 'Exit' in the generated scripts. Signed-off-by: Stefano Lattarini <stefano.lattarini@gmail.com>
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t/backcompat3.sh
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#! /bin/sh # Copyright (C) 2010-2012 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/>. # Backward-compatibility test: check what happens when AC_INIT and # AM_INIT_AUTOMAKE are both given two or more arguments. am_create_testdir=empty . ./defs || exit 1 empty='' AUTOMAKE="$AUTOMAKE -Wno-obsolete" cat > Makefile.am <<'END' ## Leading ':;' here required to work around bugs of (at least) bash 3.2 got: Makefile @:; { \ echo 'PACKAGE = $(PACKAGE)'; \ echo 'VERSION = $(VERSION)'; \ echo 'PACKAGE_NAME = $(PACKAGE_NAME)'; \ echo 'PACKAGE_VERSION = $(PACKAGE_VERSION)'; \ echo 'PACKAGE_STRING = $(PACKAGE_STRING)'; \ echo 'PACKAGE_TARNAME = $(PACKAGE_TARNAME)'; \ echo 'PACKAGE_BUGREPORT = $(PACKAGE_BUGREPORT)'; \ echo 'PACKAGE_URL = $(PACKAGE_URL)'; \ } >$@ END ### Run 1 ### cat > configure.in <<END AC_INIT([ac_name], [ac_version]) AM_INIT_AUTOMAKE([am_name], [am_version]) AC_CONFIG_FILES([Makefile]) AC_OUTPUT END cat configure.in $ACLOCAL $AUTOCONF $AUTOMAKE -a ./configure cat >exp <<END PACKAGE = am_name VERSION = am_version PACKAGE_NAME = ac_name PACKAGE_VERSION = ac_version PACKAGE_STRING = ac_name ac_version PACKAGE_TARNAME = ac_name PACKAGE_BUGREPORT = $empty PACKAGE_URL = $empty END $MAKE got diff exp got ### Run 2 ### cat > configure.in <<'END' dnl: 'AC_INIT' in Autoconf <= 2.63 doesn't have an URL argument. dnl: Luckily, 'AC_AUTOCONF_VERSION' and 'm4_version_prereq' are dnl: both present in autoconf 2.62, which we require; so that we dnl: can at least use the following workaround. m4_version_prereq([2.64], [AC_INIT([ac_name], [ac_version], [ac_bugreport], [ac_tarname], [ac_url])], [AC_INIT([ac_name], [ac_version], [ac_bugreport], [ac_tarname]) AC_SUBST([PACKAGE_URL], [ac_url])]) AM_INIT_AUTOMAKE([am_name], [am_version]) AC_CONFIG_FILES([Makefile]) AC_OUTPUT END cat configure.in $ACLOCAL $AUTOCONF $AUTOMAKE ./configure cat >exp <<END PACKAGE = am_name VERSION = am_version PACKAGE_NAME = ac_name PACKAGE_VERSION = ac_version PACKAGE_STRING = ac_name ac_version PACKAGE_TARNAME = ac_tarname PACKAGE_BUGREPORT = ac_bugreport PACKAGE_URL = ac_url END $MAKE got diff exp got ### Run 3 ### cat > configure.in <<END AC_INIT([ac_name], [ac_version]) AM_INIT_AUTOMAKE([am_name], [am_version], [am_foo_quux]) AC_CONFIG_FILES([Makefile]) AC_OUTPUT END cat configure.in $ACLOCAL $AUTOCONF $AUTOMAKE ./configure cat >exp <<END PACKAGE = am_name VERSION = am_version PACKAGE_NAME = ac_name PACKAGE_VERSION = ac_version PACKAGE_STRING = ac_name ac_version PACKAGE_TARNAME = ac_name PACKAGE_BUGREPORT = $empty PACKAGE_URL = $empty END $MAKE got diff exp got $FGREP am_foo_quux Makefile.in Makefile configure config.status && exit 1 ### Done ### :