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# Configure script for libada.

#   Copyright 2003, 2004, 2009, 2011 Free Software Foundation, Inc.

#

# This file is free software; you can redistribute it and/or modify it

# under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 3 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful, but

# WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

# General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; see the file COPYING3.  If not see

# .

sinclude(../config/acx.m4)

sinclude(../config/multi.m4)

sinclude(../config/override.m4)

sinclude(../config/picflag.m4)

sinclude(../config/unwind_ipinfo.m4)

AC_INIT

AC_PREREQ([2.64])

AC_CONFIG_SRCDIR([Makefile.in])

# Determine the host, build, and target systems

AC_CANONICAL_BUILD

AC_CANONICAL_HOST

AC_CANONICAL_TARGET

target_alias=${target_alias-$host_alias}

# Determine the noncanonical target name, for directory use.

ACX_NONCANONICAL_TARGET

# Determine the target- and build-specific subdirectories

GCC_TOPLEV_SUBDIRS

# Command-line options.

# Very limited version of AC_MAINTAINER_MODE.

AC_ARG_ENABLE([maintainer-mode],

  [AC_HELP_STRING([--enable-maintainer-mode],

                 [enable make rules and dependencies not useful (and

                  sometimes confusing) to the casual installer])],

  [case ${enable_maintainer_mode} in

     yes) MAINT='' ;;

     no) MAINT='#' ;;

     *) AC_MSG_ERROR([--enable-maintainer-mode must be yes or no]) ;;

   esac

   maintainer_mode=${enableval}],

  [MAINT='#'])

AC_SUBST([MAINT])dnl

AM_ENABLE_MULTILIB(, ..)

# Calculate toolexeclibdir

# Also toolexecdir, though it's only used in toolexeclibdir

case ${enable_version_specific_runtime_libs} in

  yes)

    # Need the gcc compiler version to know where to install libraries

    # and header files if --enable-version-specific-runtime-libs option

    # is selected.

    toolexecdir='$(libdir)/gcc/$(target_alias)'

    toolexeclibdir='$(toolexecdir)/$(gcc_version)$(MULTISUBDIR)'

    ;;

  no)

    if test -n "$with_cross_host" &&

       test x"$with_cross_host" != x"no"; then

      # Install a library built with a cross compiler in tooldir, not libdir.

      toolexecdir='$(exec_prefix)/$(target_alias)'

      toolexeclibdir='$(toolexecdir)/lib'

    else

      toolexecdir='$(libdir)/gcc-lib/$(target_alias)'

      toolexeclibdir='$(libdir)'

    fi

    multi_os_directory=`$CC -print-multi-os-directory`

    case $multi_os_directory in

      .) ;; # Avoid trailing /.

      *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;;

    esac

    ;;

esac

AC_SUBST(toolexecdir)

AC_SUBST(toolexeclibdir)

#TODO: toolexeclibdir is currently disregarded

# Check the compiler.

# The same as in boehm-gc and libstdc++. Have to borrow it from there.

# We must force CC to /not/ be precious variables; otherwise

# the wrong, non-multilib-adjusted value will be used in multilibs.

# As a side effect, we have to subst CFLAGS ourselves.

m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS])

m4_define([_AC_ARG_VAR_PRECIOUS],[])

AC_PROG_CC

m4_rename_force([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])

AC_SUBST(CFLAGS)

AC_ARG_ENABLE([shared],

[AC_HELP_STRING([--disable-shared],

                [don't provide a shared libgnat])],

[

case $enable_shared in

  yes | no) ;;

  *)

    enable_shared=no

    IFS="${IFS=         }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"

    for pkg in $enableval; do

      case $pkg in

        ada | libada)

          enable_shared=yes ;;

      esac

    done

    IFS="$ac_save_ifs"

    ;;

esac

], [enable_shared=yes])

AC_SUBST([enable_shared])

GCC_PICFLAG

AC_SUBST([PICFLAG])

# These must be passed down, or are needed by gcc/libgcc.mvars

AC_PROG_AWK

AC_PROG_LN_S

# Determine what to build for 'gnatlib'

if test $build = $target \

   && test ${enable_shared} = yes ; then

  # Note that build=target is almost certainly the wrong test; FIXME

  default_gnatlib_target="gnatlib-shared"

else

  default_gnatlib_target="gnatlib-plain"

fi

AC_SUBST([default_gnatlib_target])

# Check for _Unwind_GetIPInfo

GCC_CHECK_UNWIND_GETIPINFO

have_getipinfo=

if test x$have_unwind_getipinfo = xyes; then

  have_getipinfo=-DHAVE_GETIPINFO

fi

AC_SUBST(have_getipinfo)

# Output: create a Makefile.

AC_CONFIG_FILES([Makefile])

AC_OUTPUT