t/backcompat2.sh

   1 #! /bin/sh
   2 # Copyright (C) 2010-2024 Free Software Foundation, Inc.
   3 #
   4 # This program is free software; you can redistribute it and/or modify
   5 # it under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 2, or (at your option)
   7 # any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
  16
  17 # Backward-compatibility test: check that AM_INIT_AUTOMAKE with two or
  18 # three arguments does AC_DEFINE the symbols PACKAGE and VERSION iff the
  19 # third argument is empty or non-existent.
  20
  21 am_create_testdir=empty
  22 . test-init.sh
  23
  24 # A trick to make the test run muuuch faster, by avoiding repeated
  25 # runs of aclocal (one order of magnitude improvement in speed!).
  26 echo 'AC_INIT(x,0) AM_INIT_AUTOMAKE' > configure.ac
  27 $ACLOCAL
  28 rm -rf configure.ac autom4te.*
  29
  30 touch install-sh missing
  31
  32 cat > config.h.in <<'END'
  33 #undef PACKAGE
  34 #undef VERSION
  35 END
  36
  37 for am_arg3 in ':' 'false' '#' ' '; do
  38   unindent > configure.ac <<END
  39     AC_INIT
  40     AC_CONFIG_HEADERS([config.h])
  41     AM_INIT_AUTOMAKE([pkgname], [pkgversion], [$am_arg3])
  42     AC_OUTPUT
  43 END
  44   cat configure.ac # For debugging.
  45   $AUTOCONF
  46   ./configure
  47   cat config.h # For debugging.
  48   # The non-empty third argument should prevent PACKAGE and VERSION
  49   # from being AC_DEFINE'd.
  50   $EGREP 'pkg(name|version)' config.h && exit 1
  51   # This is required because even relatively-recent versions of the
  52   # BSD shell wrongly exit when the 'errexit' shell flag is active if
  53   # the last command of a compound statement fails, even if it should
  54   # be protected by the use of "&&".
  55   :
  56 done
  57
  58 for am_extra_args in '' ',' ', []'; do
  59   unindent > configure.ac <<END
  60     AC_INIT
  61     AC_CONFIG_HEADERS([config.h])
  62     AM_INIT_AUTOMAKE([pkgname], [pkgversion]$am_extra_args)
  63     AC_OUTPUT
  64 END
  65   cat configure.ac # For debugging.
  66   $AUTOCONF
  67   ./configure
  68   cat config.h # For debugging.
  69   grep '^ *# *define  *PACKAGE  *"pkgname" *$' config.h
  70   grep '^ *# *define  *VERSION  *"pkgversion" *$' config.h
  71 done
  72
  73 :