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# 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)
;;
aarch64*-*-*)
;;
arc-*-*)
;;
arm*-*-*)
;;
bfin-*-*)
;;
cris-*-* | crisv32-*-*)
;;
d10v*)
;;
h8300*-*-*)
;;
h8500-*-*)
;;
i[3456]86-*-sco*)
;;
lm32-*-*)
;;
m32r-*-*)
;;
mn10?00-*-*)
;;
riscv*-*-*)
;;
powerpcle-*-pe)
;;
sh*-*-*)
;;
sparc-sun-sunos*)
;;
sparc64-*-*)
;;
v850*-*-*)
;;
w65-*-*)
;;
xstormy16-*-*)
;;
z8k-*-*)
;;
*)
AC_DEFINE(MISSING_SYSCALL_NAMES)
;;
esac
dnl Make sure we know if elf format used
case "${target}" in
*-*-elf)
AC_DEFINE(HAVE_ELF)
AC_CACHE_CHECK([for .previous assembler directive],
libc_cv_asm_previous_directive, [dnl
libc_cv_asm_previous_directive=no
cat > conftest.s <<EOF
.section foo_section
.previous
EOF
if AC_TRY_COMMAND(${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 <<EOF
.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 <<EOF
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_cv_symbol_prefix, [dnl
cat > conftest.c <<\EOF
foo () { }
EOF
dnl
libc_cv_symbol_prefix=none
if AC_TRY_COMMAND([${CC-cc} -S conftest.c -o - | fgrep "\$foo" > /dev/null]);
then
libc_cv_symbol_prefix='$'
else
if AC_TRY_COMMAND([${CC-cc} -S conftest.c -o - | fgrep "_foo" > /dev/null]);
then
libc_cv_symbol_prefix=_
fi
fi
rm -f conftest* ])
if test $libc_cv_symbol_prefix != none; then
AC_DEFINE_UNQUOTED(__SYMBOL_PREFIX, "$libc_cv_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
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