build-aux/no-bogus-m4-defines

   1 #! /bin/sh
   2
   3 #   no-bogus-m4-defines - detect wrong m4 definitions
   4 #   -------------------------------------------------
   5 #   Try to catch the case where 'aclocal' pulls installed libtool
   6 #   macro file contents from another version of libtool into the
   7 #   current package 'aclocal.m4'.  Currently used by 'make dist'
   8 #   and by ./bootstrap (bootstrap.conf).
   9 #
  10 #   Copyright (C) 2015-2019, 2021-2024 Free Software Foundation, Inc.
  11 #
  12 #   This file is part of GNU Libtool.
  13 #
  14 # GNU Libtool is free software; you can redistribute it and/or
  15 # modify it under the terms of the GNU General Public License as
  16 # published by the Free Software Foundation; either version 2 of
  17 # the License, or (at your option) any later version.
  18 #
  19 # GNU Libtool is distributed in the hope that it will be useful,
  20 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  21 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22 # GNU General Public License for more details.
  23 #
  24 # You should have received a copy of the GNU General Public License
  25 # along with GNU Libtool; see the file COPYING.  If not, a copy
  26 # can be downloaded from  http://www.gnu.org/licenses/gpl.html,
  27 # or obtained by writing to the Free Software Foundation, Inc.,
  28 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  29
  30 # Please report bugs or propose patches to bug-libtool@gnu.org.
  31
  32 . `echo "$0" |${SED-sed} 's|[^/]*$||'`/funclib.sh
  33 # source this for "GNU m4" detection methods
  34 . `echo "$0" |${SED-sed} 's|[^/]*$||'`/extract-trace
  35
  36 $require_gnu_m4
  37
  38 bogus_macros='LT_INIT AC_PROG_LIBTOOL AM_PROG_LIBTOOL'
  39
  40 bogus_macros_grep=''
  41 for macro in $bogus_macros; do
  42   func_append bogus_macros_grep "/$macro/p;"
  43 done
  44
  45 clean_false_alarms="pushdef(\`AC_BEFORE', \`')"
  46
  47 bogus_macros_check_output=`$ECHO "$clean_false_alarms" \
  48   |$M4 - aclocal.m4 libltdl/aclocal.m4 \
  49   |$SED -n "$bogus_macros_grep"`
  50
  51 exit_val=0
  52 for macro in $bogus_macros; do
  53   case $bogus_macros_check_output in
  54     *$macro*)
  55       func_error "Bogus $macro macro definition in an aclocal.m4 file"
  56       exit_val=1
  57       ;;
  58   esac
  59 done
  60
  61 exit $exit_val