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kc3-lang/automake/m4/multi.m4

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  • Author : Alexandre Duret-Lutz
    Date : 2006-10-14 13:27:35
    Hash : ff258932
    Message : * m4/multi.m4: Non-default multilibs may be cross compilation.

  • m4/multi.m4
  • ##                                                          -*- Autoconf -*-
    # Copyright (C) 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006
    # Free Software Foundation, Inc.
    #
    # This file is free software; the Free Software Foundation
    # gives unlimited permission to copy and/or distribute it,
    # with or without modifications, as long as this notice is preserved.
    
    # serial 6
    
    # AM_ENABLE_MULTILIB([MAKEFILE], [REL-TO-TOP-SRCDIR])
    # ---------------------------------------------------
    # Add --enable-multilib to configure.
    AC_DEFUN([AM_ENABLE_MULTILIB],
    [# Default to --enable-multilib
    AC_ARG_ENABLE(multilib,
    [  --enable-multilib       build many library versions (default)],
    [case "$enableval" in
      yes) multilib=yes ;;
      no)  multilib=no ;;
      *)   AC_MSG_ERROR([bad value $enableval for multilib option]) ;;
     esac],
    	      [multilib=yes])
    
    # We may get other options which we leave undocumented:
    # --with-target-subdir, --with-multisrctop, --with-multisubdir
    # See config-ml.in if you want the gory details.
    
    if test "$srcdir" = "."; then
      if test "$with_target_subdir" != "."; then
        multi_basedir="$srcdir/$with_multisrctop../$2"
      else
        multi_basedir="$srcdir/$with_multisrctop$2"
      fi
    else
      multi_basedir="$srcdir/$2"
    fi
    AC_SUBST(multi_basedir)
    
    # Even if the default multilib is not a cross compilation,
    # it may be that some of the other multilibs are.
    if test $cross_compiling = no && test $multilib = yes \
       && test "x${with_multisubdir}" != x ; then
       cross_compiling=maybe
    fi
    
    AC_OUTPUT_COMMANDS([
    # Only add multilib support code if we just rebuilt the top-level
    # Makefile.
    case " $CONFIG_FILES " in
     *" ]m4_default([$1],Makefile)[ "*)
       ac_file=]m4_default([$1],Makefile)[ . ${multi_basedir}/config-ml.in
       ;;
    esac],
    		   [
    srcdir="$srcdir"
    host="$host"
    target="$target"
    with_multisubdir="$with_multisubdir"
    with_multisrctop="$with_multisrctop"
    with_target_subdir="$with_target_subdir"
    ac_configure_args="${multilib_arg} ${ac_configure_args}"
    multi_basedir="$multi_basedir"
    CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
    CC="$CC"])])dnl