libada/configure.ac

   1 # Configure script for libada.
   2 #   Copyright 2003, 2004 Free Software Foundation, Inc.
   3 #
   4 # This file is free software; you can redistribute it and/or modify it
   5 # under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 2 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful, but
  10 # WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 # 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, write to the Free Software
  16 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  17
  18 sinclude(../config/acx.m4)
  19 sinclude(../config/override.m4)
  20
  21 AC_INIT
  22 AC_PREREQ([2.59])
  23
  24 AC_CONFIG_SRCDIR([Makefile.in])
  25
  26 # Determine the host, build, and target systems
  27 AC_CANONICAL_BUILD
  28 AC_CANONICAL_HOST
  29 AC_CANONICAL_TARGET
  30
  31 # Determine the noncanonical target name, for directory use.
  32 ACX_NONCANONICAL_TARGET
  33
  34 # Determine the target- and build-specific subdirectories
  35 GCC_TOPLEV_SUBDIRS
  36
  37 # Command-line options.
  38 # Very limited version of AC_MAINTAINER_MODE.
  39 AC_ARG_ENABLE([maintainer-mode],
  40   [AC_HELP_STRING([--enable-maintainer-mode],
  41                  [enable make rules and dependencies not useful (and
  42                   sometimes confusing) to the casual installer])],
  43   [case ${enable_maintainer_mode} in
  44      yes) MAINT='' ;;
  45      no) MAINT='#' ;;
  46      *) AC_MSG_ERROR([--enable-maintainer-mode must be yes or no]) ;;
  47    esac
  48    maintainer_mode=${enableval}],
  49   [MAINT='#'])
  50 AC_SUBST([MAINT])dnl
  51
  52 AC_CANONICAL_SYSTEM
  53 target_alias=${target_alias-$host_alias}
  54
  55 AM_ENABLE_MULTILIB(, ..)
  56 # Calculate toolexeclibdir
  57 # Also toolexecdir, though it's only used in toolexeclibdir
  58 case ${enable_version_specific_runtime_libs} in
  59   yes)
  60     # Need the gcc compiler version to know where to install libraries
  61     # and header files if --enable-version-specific-runtime-libs option
  62     # is selected.
  63     toolexecdir='$(libdir)/gcc/$(target_alias)'
  64     toolexeclibdir='$(toolexecdir)/$(gcc_version)$(MULTISUBDIR)'
  65     ;;
  66   no)
  67     if test -n "$with_cross_host" &&
  68        test x"$with_cross_host" != x"no"; then
  69       # Install a library built with a cross compiler in tooldir, not libdir.
  70       toolexecdir='$(exec_prefix)/$(target_alias)'
  71       toolexeclibdir='$(toolexecdir)/lib'
  72     else
  73       toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
  74       toolexeclibdir='$(libdir)'
  75     fi
  76     multi_os_directory=`$CC -print-multi-os-directory`
  77     case $multi_os_directory in
  78       .) ;; # Avoid trailing /.
  79       *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;;
  80     esac
  81     ;;
  82 esac
  83 AC_SUBST(toolexecdir)
  84 AC_SUBST(toolexeclibdir)
  85 #TODO: toolexeclibdir is currently disregarded
  86
  87 # Check the compiler.
  88 # The same as in boehm-gc and libstdc++. Have to borrow it from there.
  89 # We must force CC to /not/ be precious variables; otherwise
  90 # the wrong, non-multilib-adjusted value will be used in multilibs.
  91 # As a side effect, we have to subst CFLAGS ourselves.
  92
  93 m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS])
  94 m4_define([_AC_ARG_VAR_PRECIOUS],[])
  95 AC_PROG_CC
  96 m4_rename([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])
  97
  98 AC_SUBST(CFLAGS)
  99
 100 AC_ARG_ENABLE([shared],
 101 [AC_HELP_STRING([--disable-shared],
 102                 [don't provide a shared libgnat])],
 103 [
 104 case $enable_shared in
 105   yes | no) ;;
 106   *)
 107     enable_shared=no
 108     IFS="${IFS=         }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
 109     for pkg in $enableval; do
 110       case $pkg in
 111         ada | libada)
 112           enable_shared=yes ;;
 113       esac
 114     done
 115     IFS="$ac_save_ifs"
 116     ;;
 117 esac
 118 ], [enable_shared=yes])
 119 AC_SUBST([enable_shared])
 120
 121 # Need to pass this down for now :-P
 122 AC_PROG_LN_S
 123
 124 # Determine what to build for 'gnatlib'
 125 if test $build = $target \
 126    && test ${enable_shared} = yes ; then
 127   # Note that build=target is almost certainly the wrong test; FIXME
 128   default_gnatlib_target="gnatlib-shared"
 129 else
 130   default_gnatlib_target="gnatlib-plain"
 131 fi
 132 AC_SUBST([default_gnatlib_target])
 133
 134 AC_PROG_CC
 135 warn_cflags=
 136 if test "x$GCC" = "xyes"; then
 137   warn_cflags='$(GCC_WARN_CFLAGS)'
 138 fi
 139 AC_SUBST(warn_cflags)
 140
 141 # Output: create a Makefile.
 142 AC_CONFIG_FILES([Makefile])
 143
 144 AC_OUTPUT