source: trunk/essentials/sys-devel/autoconf/tests/mktests.sh

#! /bin/sh

# Build some of the Autoconf test files.

# Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006 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, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA.

# If we fail, clean up, but touch the output files.  We probably failed
# because we used some non-portable tool.

as_me=`echo "$0" | sed 's,.*[\\/],,'`

trap 'echo "'"$as_me"': failed." >&2
      rm -f acdefuns audefuns requires *.tat
      trap "" 0
      exit 1' \
     0 1 2 15

# If ever something goes wrong, fail, so that the trap is launched.
set -e

# We need arguments.
test $# != 0

# We need these arguments.
src="$@"

# Set locale to C so that `sort' behaves in a uniform way.
LANGUAGE=C; export LANGUAGE
LANG=C; export LANG
LC_ALL=C export LC_ALL


# requires
# --------
# Get the list of macros that are required: there is little interest
# in testing them since they will be run by the guy who requires them.
sed -n 's/dnl.*//;s/.*AC_REQUIRE(\[*\([a-zA-Z0-9_]*\).*$/\1/p' $src |
  sort -u >requires


# exclude_list
# ------------
# Macros which must not be checked at all (not with AT_CHECK_MACRO nor
# AT_CHECK_AU_MACRO).
exclude_list='
        # Not a macro name at all.
        /^$/ {next}

        # Not macros, just mapping from old variable name to a new one.
        /^ac_cv_prog_(gcc|gxx|g77)$/ {next}
'


# ac_exclude_list
# ---------------
# We try to test all the Autoconf macros with AT_CHECK_MACRO to check
# for syntax problems, etc.  Not every macros can be run without
# arguments, and some are already tested elsewhere.  AC_EXCLUDE_LIST
# filters out the macros we don't want to test.
ac_exclude_list='
        # Internal macros are used elsewhere.
        /^_?_AC_/ {next}

        # Used in many places.
        /^AC_.*_IFELSE$/ {next}
        /^AC_LANG/ {next}
        /^AC_RUN_LOG$/ {next}
        /^AC_TRY/ {next}

        # Need an argument.
        /^AC_(CANONICALIZE|PREFIX_PROGRAM|PREREQ)$/ {next}
        /^AC_(SEARCH_LIBS|REPLACE_FUNCS)$/ {next}
        /^AC_(CACHE_CHECK|COMPUTE)_INT$/ {next}

        # Performed in the semantics tests.
        /^AC_CHECK_(ALIGNOF|DECL|FILE|FUNC|HEADER|LIB|MEMBER|PROG|SIZEOF|(TARGET_)?TOOL|TYPE)S?$/ {next}

        # Fail when the source does not exist.
        /^AC_CONFIG/ {next}

        # AU defined to nothing.
        /^AC_(CYGWIN|CYGWIN32|EMXOS2|MING32|EXEEXT|OBJEXT)$/ {next}

        # Produce "= val" because $1, the variable used to store the result,
        # is empty.
        /^AC_(F77|FC)_FUNC$/ {next}
        /^AC_FC_SRCEXT$/ {next}
        /^AC_PATH_((TARGET_)?TOOL|PROG)S?$/ {next}

        # Requires the current language to be Fortran, not C.
        /^AC_FC_FREEFORM$/ {next}

        # Is a number.
        /^AC_FD_CC$/ {next}

        # Obsolete, but needs to be AC_DEFUNed.
        /^AC_FOREACH$/ {next}

        # Require a file that is not shipped with Autoconf.  But it should.
        /^AC_FUNC_(GETLOADAVG|FNMATCH_GNU)$/ {next}
        /^AC_REPLACE_FNMATCH$/ {next}

        # Obsolete, checked in semantics.
        /^AC_FUNC_WAIT3$/ {next}
        /^AC_SYS_RESTARTABLE_SYSCALLS$/ {next}

        # Not intended to be invoked at the top level.
        /^AC_INCLUDES_DEFAULT$/ {next}

        # AC_INIT includes all the AC_INIT macros.
        # There is an infinite m4 recursion if AC_INIT is used twice.
        /^AC_INIT/ {next}

        # Checked in semantics.
        /^AC_(PROG_CC|C_CONST|C_VOLATILE)$/ {next}
        /^AC_PATH_XTRA$/ {next}

        # Requires a working C++ compiler, which is not a given.
        /^AC_PROG_CXX_C_O$/ {next}

        # Already tested by AT_CHECK_MACRO.
        /^AC_OUTPUT$/ {next}
'


# ac_exclude_script
# -----------------
# Build a single awk script out of the above.
ac_exclude_script="$exclude_list $ac_exclude_list {print}"


# au_exclude_list
# ---------------
# Check all AU_DEFUN'ed macros with AT_CHECK_AU_MACRO, except these.
au_exclude_list='
        # Empty.
        /^AC_(C_CROSS|PROG_CC_STDC)$/ {next}

        # Use AC_REQUIRE.
        /^AC_(CYGWIN|MINGW32|EMXOS2)$/ {next}

        # Already in configure.ac.
        /^AC_(INIT|OUTPUT)$/ {next}

        # AC_LANG_SAVE needs user interaction to be removed.
        # AC_LANG_RESTORE cannot be used alone.
        /^AC_LANG_(SAVE|RESTORE)$/ {next}

        # Need arguments and are tested elsewhere.
        /^AC_(LINK_FILES|PREREQ)$/ {next}
'

# au_exclude_script
# -----------------
# Build a single awk script out of the above.
au_exclude_script="$exclude_list $au_exclude_list {print}"


## ------------------------- ##
## Creating the test files.  ##
## ------------------------- ##

for file in $src
do
  base=`echo "$file" | sed 's,.*[\\/],,;s/\..*//'`
  # Get the list of macros which are defined in Autoconf level.
  # Get rid of the macros we are not interested in.
  sed -n -e 's/^AC_DEFUN(\[*\([a-zA-Z0-9_]*\).*$/\1/p' \
         -e 's/^AC_DEFUN_ONCE(\[*\([a-zA-Z0-9_]*\).*$/\1/p' $file |
    awk "$ac_exclude_script" |
    sort -u >acdefuns

  # Get the list of macros which are defined in Autoupdate level.
  sed -n 's/^AU_DEFUN(\[*\([a-zA-Z][a-zA-Z0-9_]*\).*$/\1/p' $file |
    awk "$au_exclude_script" |
    sort -u >audefuns

  # Filter out required macros.
  {
    sed 's/^ *//' <<MK_EOF
    # Generated by $as_me.                      -*- Autotest -*-

    ## --------------------- ##
    ## Do not edit by hand.  ##
    ## --------------------- ##

    # Copyright (C) 2000, 2001, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.

    AT_BANNER([Testing autoconf/$base macros.])

MK_EOF

    echo "# Modern macros."
    comm -23 acdefuns requires | sed 's/.*/AT_CHECK_MACRO([&])/'
    echo
    echo "# Obsolete macros."
    comm -23 audefuns requires | sed 's/.*/AT_CHECK_AU_MACRO([&])/'
  } >ac$base.tat

  # In one atomic step so that if something above fails, the trap
  # preserves the old version of the file.  If there is nothing to
  # check, output /rien du tout/[1].
  if grep AT_CHECK ac$base.tat >/dev/null 2>&1; then
    mv -f ac$base.tat ac$base.at
  else
    rm -f ac$base.tat ac$base.at
    touch ac$base.at
  fi
  # Help people not to update these files by hand.
  chmod a-w ac$base.at
done

rm -f acdefuns audefuns requires

trap '' 0
exit 0

# [1] En franc,ais dans le texte.