Subversion Repositories openrisc_2011-10-31

# Copyright (c) 1995, 1996 Cygnus Support

#

# The authors hereby grant permission to use, copy, modify, distribute,

# and license this software and its documentation for any purpose, provided

# that existing copyright notices are retained in all copies and that this

# notice is included verbatim in any distributions. No written agreement,

# license, or royalty fee is required for any of the authorized uses.

# Modifications to this software may be copyrighted by their authors

# and need not follow the licensing terms described here, provided that

# the new terms are clearly indicated on the first page of each file where

# they apply.

#

# Process this file with autoconf to produce a configure script.

#

AC_PREREQ(2.59)

AC_INIT(close.c)

AC_CONFIG_HEADER(config.h)

if test "${enable_shared}" = "yes" ; then

    echo "Shared libraries not supported for cross compiling, ignored"

fi

if test "$srcdir" = "." ; then

  if test "${with_target_subdir}" != "." ; then

    libgloss_topdir="${srcdir}/${with_multisrctop}../../.."

  else

    libgloss_topdir="${srcdir}/${with_multisrctop}../.."

  fi

else

  libgloss_topdir="${srcdir}/../.."

fi

AC_CONFIG_AUX_DIR($libgloss_topdir)

AC_CANONICAL_SYSTEM

AC_ARG_PROGRAM

AC_PROG_INSTALL

AC_DEFINE(HAVE_GNU_LD)

dnl Make sure syscall names match those being used by newlib

case "${target}" in

  *-*-cygwin*)

        ;;

  a29k-amd-udi)

        ;;

  arc-*-*)

        ;;

  arm-*-pe)

        ;;

  arm-*-*)

        ;;

  strongarm-*-*)

        ;;

  bfin-*-*)

        ;;

  cris-*-* | crisv32-*-*)

        ;;

  d10v*)

        ;;

  h8300*-*-*)

        ;;

  h8500-*-*)

        ;;

  i[3456]86-*-sco*)

        ;;

  lm32-*-*)

        ;;

  m32r-*-*)

        ;;

  mn10?00-*-*)

        ;;

  or32-*-*)

        ;;

  powerpcle-*-pe)

        ;;

  sh*-*-*)

        ;;

  sparc-sun-sunos*)

        ;;

  sparc64-*-*)

        ;;

  thumb-*-pe)

        ;;

  thumb-*-*)

        ;;

  v850-*-*)

        ;;

  v850e-*-*)

        ;;

  v850ea-*-*)

        ;;

  w65-*-*)

        ;;

  xstormy16-*-*)

        ;;

  z8k-*-*)

        ;;

  *)

        AC_DEFINE(MISSING_SYSCALL_NAMES)

        ;;

esac

dnl Make sure we know if elf format used

case "${target}" in

  *-*-elf)

        AC_DEFINE(HAVE_ELF)

        AC_CACHE_CHECK([for .previous assembler directive],

                         libc_cv_asm_previous_directive, [dnl

        libc_cv_asm_previous_directive=no

        cat > conftest.s <

.section foo_section

.previous

EOF

        if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AC_FD_CC); then

          libc_cv_asm_previous_directive=yes

        fi

        rm -f conftest*])

        if test "x${libc_cv_asm_previous_directive}" = "xyes"; then

          AC_DEFINE(HAVE_ASM_PREVIOUS_DIRECTIVE)

        fi

        AC_CACHE_CHECK([for .popsection assembler directive],

                         libc_cv_asm_popsection_directive, [dnl

        libc_cv_asm_popsection_directive=no

        cat > conftest.s <

.pushsection foo_section

.popsection

EOF

        if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AC_FD_CC); then

          libc_cv_asm_popsection_directive=yes

        fi

        rm -f conftest*])

        if test "x${libc_cv_asm_popsection_directive}" = "xyes"; then

          AC_DEFINE(HAVE_ASM_POPSECTION_DIRECTIVE)

        fi

        AC_CACHE_CHECK([for section attributes],

                         libc_cv_section_attributes, [dnl

        libc_cv_section_attributes=no

        cat > conftest.c <

int secttest __attribute__ ((section (".gnu.warning.secttest"))) = 10;

int main() {}

EOF

        if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.c 1>&AC_FD_CC); then

          libc_cv_section_attributes=yes

        fi

        rm -f conftest*])

        if test "x${libc_cv_section_attributes}" = "xyes"; then

          AC_DEFINE(HAVE_SECTION_ATTRIBUTES)

        fi

        ;;

esac

AC_CACHE_CHECK([for symbol prefix], libc_symbol_prefix, [dnl

cat > conftest.c <<\EOF

foo () { }

EOF

dnl

libc_symbol_prefix=none

if AC_TRY_COMMAND([${CC-cc} -S conftest.c -o - | fgrep "\$foo" > /dev/null]);

then

  libc_symbol_prefix='$'

else

  if AC_TRY_COMMAND([${CC-cc} -S conftest.c -o - | fgrep "_foo" > /dev/null]);

  then

    libc_symbol_prefix=_

  fi

fi

rm -f conftest* ])

if test $libc_symbol_prefix != none; then

  AC_DEFINE_UNQUOTED(__SYMBOL_PREFIX, "$libc_symbol_prefix")

else

  AC_DEFINE(__SYMBOL_PREFIX, "")

fi

LIB_AC_PROG_CC

AS=${AS-as}

AC_SUBST(AS)

AR=${AR-ar}

AC_SUBST(AR)

LD=${LD-ld}

AC_SUBST(LD)

AC_PROG_RANLIB

LIB_AM_PROG_AS

host_makefile_frag=${srcdir}/../config/default.mh

dnl We have to assign the same value to other variables because autoconf

dnl doesn't provide a mechanism to substitute a replacement keyword with

dnl arbitrary data or pathnames.

dnl

host_makefile_frag_path=$host_makefile_frag

AC_SUBST(host_makefile_frag_path)

AC_SUBST_FILE(host_makefile_frag)

AC_CONFIG_FILES(Makefile,

                ac_file=Makefile . ${libgloss_topdir}/config-ml.in,

                srcdir=${srcdir}

                target=${target}

                with_multisubdir=${with_multisubdir}

                ac_configure_args="${ac_configure_args} --enable-multilib"

                CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}

                libgloss_topdir=${libgloss_topdir}

)

AC_OUTPUT