libobjc/configure.in

   1 # Process this file with autoconf to produce a configure script.
   2 #   Copyright (C) 1995, 1997, 1998 Free Software Foundation, Inc.
   3 #   Contributed by Dave Love (d.love@dl.ac.uk).
   4 #
   5 #This file is part of GNU Objective C.
   6 #
   7 #GNU Objective C is free software; you can redistribute it and/or modify
   8 #it under the terms of the GNU General Public License as published by
   9 #the Free Software Foundation; either version 2, or (at your option)
  10 #any later version.
  11 #
  12 #GNU Objective C is distributed in the hope that it will be useful,
  13 #but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 #MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 #GNU General Public License for more details.
  16 #
  17 #You should have received a copy of the GNU General Public License
  18 #along with GNU Objective C; see the file COPYING.  If not, write to
  19 #the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  20 #02111-1307, USA.
  21
  22 AC_INIT(objc.h)
  23 #AC_CONFIG_HEADER(config.h)
  24
  25 if test "${srcdir}" = "." ; then
  26   if test "${with_target_subdir}" != "." ; then
  27     topsrcdir=${with_multisrctop}../..
  28   else
  29     topsrcdir=${with_multisrctop}..
  30   fi
  31 else
  32   topsrcdir=${srcdir}/..
  33 fi
  34
  35 dnl Checks for programs.
  36 # For ObjC we'll set CC to point at the built gcc, but this will get it into
  37 # the makefiles
  38 AC_PROG_CC
  39
  40 test "$AR" || AR=ar
  41 AC_SUBST(AR)
  42 if test "$RANLIB"; then :
  43   AC_SUBST(RANLIB)
  44 else
  45   AC_PROG_RANLIB
  46 fi
  47 AC_PROG_INSTALL
  48
  49 dnl Checks for libraries.
  50
  51 dnl Checks for header files.
  52 # Sanity check for the cross-compilation case:
  53 AC_CHECK_HEADER(stdio.h,:,
  54   [AC_MSG_ERROR([Can't find stdio.h.
  55 You must have a usable C system for the target already installed, at least
  56 including headers and, preferably, the library, before you can configure
  57 the Objective C runtime system.  If necessary, install gcc now with
  58 \`LANGUAGES=c', then the target library, then build with \`LANGUAGES=objc'.])])
  59
  60 AC_HEADER_STDC
  61
  62 # Determine the name of the GCC thread file.
  63
  64 AC_CACHE_CHECK([for thread file],objc_cv_thread_file,
  65 [if test -f ../../gcc/Makefile
  66 then
  67   objc_cv_thread_file=`grep ^GCC_THREAD_FILE ../../gcc/Makefile | awk -F= '{ print $2 }'`
  68 else
  69   AC_MSG_ERROR([not found])
  70 fi])
  71 OBJC_THREAD_FILE=$objc_cv_thread_file
  72 AC_SUBST(OBJC_THREAD_FILE)
  73
  74 AC_ARG_ENABLE(objc-gc,
  75 [  --enable-objc-gc       enable the use of Boehm's garbage collector with
  76                           the GNU Objective-C runtime.],
  77 if [[[ x$enable_objc_gc = xno ]]]; then
  78         OBJC_BOEHM_GC=''
  79 else
  80         OBJC_BOEHM_GC=libobjc_gc.a
  81 fi,
  82 OBJC_BOEHM_GC='')
  83 AC_SUBST(OBJC_BOEHM_GC)
  84
  85
  86 # We need multilib support, but only if configuring for the target.
  87 AC_OUTPUT(Makefile,
  88 [test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
  89 if test -n "$CONFIG_FILES"; then
  90   if test -n "${with_target_subdir}"; then
  91     # FIXME: We shouldn't need to set ac_file
  92     ac_file=Makefile
  93     . ${topsrcdir}/config-ml.in
  94   fi
  95 fi],
  96 srcdir=${srcdir}
  97 host=${host}
  98 target=${target}
  99 with_target_subdir=${with_target_subdir}
 100 with_multisubdir=${with_multisubdir}
 101 ac_configure_args="--enable-multilib ${ac_configure_args}"
 102 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
 103 topsrcdir=${topsrcdir}
 104 )
 105
 106 dnl Local Variables:
 107 dnl comment-start: "dnl "
 108 dnl comment-end: ""
 109 dnl comment-start-skip: "\\bdnl\\b\\s *"
 110 dnl End: