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932964898a
* configure.ac: Test if sh -n works.
* configure: Regenerate.
* tests/atlocal.in: Store the result here.
* tests/local.at (AT_CHECK_SHELL_SYNTAX): Extracted from
tools.at, looking in atlocal's ac_cv_sh_n_works instead
of explicitly testing.
(AT_CHECK_PERL_SYNTAX): Moved from tools.at.
(AT_CHECK_AUTOCONF): Test for the configure script syntax.
* tests/tools.at (Syntax of the shell scripts): Simplify
using AT_CHECK_SHELL_SYNTAX.
(Syntax of the Perl scripts): Remove definition of
AT_CHECK_PERL_SYNTAX.
190 lines
5.7 KiB
Plaintext
190 lines
5.7 KiB
Plaintext
# -*- Autoconf -*-
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# Process this file with autoconf to produce a configure script.
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# Copyright (C) 1992, 1993, 1994, 1995, 1999, 2000, 2001, 2002, 2003
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# 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, write to the Free Software
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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# 02111-1307, USA.
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# We need AC_CONFIG_TESTDIR.
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AC_PREREQ([2.59])
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AC_INIT([GNU Autoconf], [2.59a], [bug-autoconf@gnu.org])
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AC_SUBST([PACKAGE_NAME])dnl
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AC_CONFIG_SRCDIR([ChangeLog])
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AC_CONFIG_AUX_DIR([config])
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AC_CONFIG_FILES([config/Makefile])
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AM_INIT_AUTOMAKE([check-news 1.7.9 dist-bzip2 readme-alpha])
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# We use `/bin/sh -n script' to check that there are no syntax errors
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# in the scripts. Although incredible, there are /bin/sh that go into
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# endless loops with `-n', e.g., SunOS's:
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#
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# $ uname -a
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# SunOS ondine 4.1.3 2 sun4m unknown
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# $ cat endless.sh
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# while false
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# do
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# :
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# done
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# exit 0
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# $ time sh endless.sh
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# sh endless.sh 0,02s user 0,03s system 78% cpu 0,064 total
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# $ time sh -nx endless.sh
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# ^Csh -nx endless.sh 3,67s user 0,03s system 63% cpu 5,868 total
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#
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# So before using `/bin/sh -n' to check our scripts, we first check
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# that `/bin/sh -n' is not broken to death.
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# A script that never returns. We don't care that it never returns,
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# broken /bin/sh loop equally with `false', but it makes it easier to
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# test the robustness in a good environment: just remove the `-n'.
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AC_CACHE_CHECK([whether sh -n works], ac_cv_sh_n_works,
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[cat > conftest.sh <<_CONFEOF_
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while :
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do
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:
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done
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_CONFEOF_
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(/bin/sh -n conftest.sh) &
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sleep 2
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if kill $! >/dev/null 2>&1; then
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# We managed to kill the child, which means that we probably
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# can't trust `/bin/sh -n', hence the test failed.
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ac_cv_sh_n_works=no
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else
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ac_cv_sh_n_works=yes
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fi
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rm conftest.sh
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])
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AC_SUBST(ac_cv_sh_n_works)
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# Initialize the test suite and build position independent wrappers.
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AC_CONFIG_TESTDIR([tests])
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AC_CONFIG_FILES([tests/Makefile tests/atlocal])
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AC_CONFIG_FILES([tests/autoconf:tests/wrapper.in],
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[chmod +x tests/autoconf])
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AC_CONFIG_FILES([tests/autoheader:tests/wrapper.in],
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[chmod +x tests/autoheader])
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AC_CONFIG_FILES([tests/autom4te:tests/wrapper.in],
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[chmod +x tests/autom4te])
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AC_CONFIG_FILES([tests/autoreconf:tests/wrapper.in],
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[chmod +x tests/autoreconf])
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AC_CONFIG_FILES([tests/autoscan:tests/wrapper.in],
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[chmod +x tests/autoscan])
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AC_CONFIG_FILES([tests/autoupdate:tests/wrapper.in],
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[chmod +x tests/autoupdate])
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AC_CONFIG_FILES([tests/ifnames:tests/wrapper.in],
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[chmod +x tests/ifnames])
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AC_PATH_PROG([EXPR], [expr])
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## ---- ##
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## M4. ##
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## ---- ##
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# We use a path for GNU m4 so even if users have another m4 first in
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# their path, the installer can configure with a path that has GNU m4
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# first and get that path embedded in the installed autoconf and
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# autoheader scripts.
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AC_PROG_GNU_M4
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if test x"$ac_cv_prog_gnu_m4" != xyes; then
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AC_MSG_ERROR([GNU M4 1.4 is required])
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fi
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## ----------- ##
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## Man pages. ##
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## ----------- ##
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AC_CONFIG_FILES(man/Makefile)
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AM_MISSING_PROG(HELP2MAN, help2man)
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## ------ ##
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## Perl. ##
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## ------ ##
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# We use a path for perl so the #! line in autoscan will work.
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AC_PATH_PROG([PERL], perl, no)
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AC_SUBST([PERL])dnl
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if test "$PERL" = no; then
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AC_MSG_ERROR([perl is not found])
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fi
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$PERL -e 'require 5.005_03;' || {
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AC_MSG_ERROR([Perl 5.005_03 or better is required])
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}
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## ------- ##
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## Emacs. ##
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## ------- ##
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AC_CONFIG_FILES([lib/emacs/Makefile])
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TEST_EMACS=$EMACS
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test x"$TEST_EMACS" = xt && TEST_EMACS=
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AC_CHECK_PROGS([TEST_EMACS], [emacs xemacs], [no])
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# autoconf-mode.el and autotest-mode.el do not work with older version of
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# Emacs (i.e. 18.x.x). During byte-compilation, Emacs complains:
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# "Variable (broken nil) seen on pass 2 of byte compiler but not pass 1"
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# We detect this problem here.
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AS_IF([test "$TEST_EMACS" != no],
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[AC_CACHE_CHECK([whether $TEST_EMACS is sufficiently recent],
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[ac_cv_prog_emacs_ok],
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[# Note: The quoted "EOF" is intentional. It protects the ` in the text.
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cat >conftest.el << "EOF"
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(defvar broken)
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(defun broken-mode () (setq broken-defaults `(broken nil)))
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EOF
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AS_IF([AC_RUN_LOG(
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[$TEST_EMACS -batch -q -f batch-byte-compile conftest.el 1>&2])],
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[ac_cv_prog_emacs_ok=yes], [ac_cv_prog_emacs_ok=no])
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rm -f conftest.el conftest.elc])
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AS_IF([test $ac_cv_prog_emacs_ok = no], [TEST_EMACS=no])])
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AC_SUBST([EMACS], [$TEST_EMACS])
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AM_PATH_LISPDIR
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## ------------ ##
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## Conclusion. ##
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## ------------ ##
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AC_CONFIG_FILES([Makefile doc/Makefile
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lib/Makefile lib/Autom4te/Makefile lib/autoscan/Makefile
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lib/m4sugar/Makefile
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lib/autoconf/Makefile lib/autotest/Makefile
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bin/Makefile])
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AC_OUTPUT
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# Report the state of this version of Autoconf if this is a beta.
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m4_bmatch(m4_defn([AC_PACKAGE_VERSION]), [[a-z]],
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[ cat <<EOF
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You are about to use an experimental version of Autoconf. Be sure to
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read the relevant mailing lists, most importantly <autoconf@gnu.org>.
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Below you will find information on the status of this version of Autoconf.
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EOF
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sed -n '/^\* Status/,$p' $srcdir/BUGS
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])
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