418 lines
14 KiB
Plaintext
418 lines
14 KiB
Plaintext
dnl This is the newlib configure.in file.
|
|
dnl Process this file with autoconf to produce a configure script.
|
|
|
|
AC_PREREQ(2.59)
|
|
AC_INIT([newlib],[NEWLIB_VERSION])
|
|
AC_CONFIG_SRCDIR([libc])
|
|
AC_CONFIG_HEADER(newlib.h:newlib.hin)
|
|
|
|
dnl Can't be done in NEWLIB_CONFIGURE because that confuses automake.
|
|
AC_CONFIG_AUX_DIR(..)
|
|
|
|
dnl Support --enable-newlib-io-pos-args
|
|
dnl This option is actually read in libc/configure.in. It is repeated
|
|
dnl here so that it shows up in the help text.
|
|
AC_ARG_ENABLE(newlib-io-pos-args,
|
|
[ --enable-newlib-io-pos-args enable printf-family positional arg support],
|
|
[case "${enableval}" in
|
|
yes) newlib_io_pos_args=yes ;;
|
|
no) newlib_io_pos_args=no ;;
|
|
*) AC_MSG_ERROR(bad value ${enableval} for newlib-io-pos-args option) ;;
|
|
esac], [newlib_io_pos_args=])dnl
|
|
|
|
dnl Support --enable-newlib-io-long-long
|
|
AC_ARG_ENABLE(newlib-io-long-long,
|
|
[ --enable-newlib-io-long-long enable long long type support in IO functions like printf/scanf],
|
|
[case "${enableval}" in
|
|
yes) newlib_io_long_long=yes;;
|
|
no) newlib_io_long_long=no ;;
|
|
*) AC_MSG_ERROR(bad value ${enableval} for newlib-io-long-long option) ;;
|
|
esac], [newlib_io_long_long=])dnl
|
|
|
|
dnl Support --enable-newlib-io-long-double
|
|
AC_ARG_ENABLE(newlib-io-long-double,
|
|
[ --enable-newlib-io-long-double enable long double type support in IO functions printf/scanf],
|
|
[case "${enableval}" in
|
|
yes) newlib_io_long_double=yes;;
|
|
no) newlib_io_long_double=no ;;
|
|
*) AC_MSG_ERROR(bad value ${enableval} for newlib-io-long-double option) ;;
|
|
esac], [newlib_io_long_double=])dnl
|
|
|
|
dnl If multibyte support is enabled, iconv should be enabled too
|
|
dnl Support --enable-newlib-mb
|
|
AC_ARG_ENABLE(newlib-mb,
|
|
[ --enable-newlib-mb enable multibyte support],
|
|
[case "${enableval}" in
|
|
yes) newlib_mb=yes;;
|
|
no) newlib_mb=no ;;
|
|
*) AC_MSG_ERROR(bad value ${enableval} for newlib-mb option) ;;
|
|
esac], [newlib_mb=])dnl
|
|
|
|
dnl Support --enable-newlib-iconv-encodings
|
|
AC_ARG_ENABLE(newlib-iconv-encodings,
|
|
[ --enable-newlib-iconv-encodings enable specific comma-separated list of bidirectional iconv encodings to be built-in],
|
|
[if test x${enableval} = x; then
|
|
AC_MSG_ERROR(bad value ${enableval} for newlib-iconv-encodings option - use comma-separated encodings list)
|
|
fi
|
|
iconv_encodings=${enableval}
|
|
], [iconv_encodings=])dnl
|
|
|
|
dnl Support --enable-newlib-iconv-from-encodings
|
|
AC_ARG_ENABLE(newlib-iconv-from-encodings,
|
|
[ --enable-newlib-iconv-from-encodings enable specific comma-separated list of \"from\" iconv encodings to be built-in],
|
|
[if test x${enableval} = x; then
|
|
AC_MSG_ERROR(bad value ${enableval} for newlib-iconv-from-encodings option - use comma-separated encodings list)
|
|
fi
|
|
iconv_from_encodings=${enableval}
|
|
], [iconv_from_encodings=])dnl
|
|
|
|
dnl Support --enable-newlib-iconv-to-encodings
|
|
AC_ARG_ENABLE(newlib-iconv-to-encodings,
|
|
[ --enable-newlib-iconv-to-encodings enable specific comma-separated list of \"to\" iconv encodings to be built-in],
|
|
[if test x${enableval} = x; then
|
|
AC_MSG_ERROR(bad value ${enableval} for newlib-iconv-to-encodings option - use comma-separated encodings list)
|
|
fi
|
|
iconv_to_encodings=${enableval}
|
|
], [iconv_to_encodings=])dnl
|
|
|
|
dnl Support --enable-newlib-iconv-external-ccs
|
|
AC_ARG_ENABLE(newlib-iconv-external-ccs,
|
|
[ --enable-newlib-iconv-external-ccs enable capabilities to load external CCS files for iconv],
|
|
[if test "${newlib_iconv_external_ccs+set}" != set; then
|
|
case "${enableval}" in
|
|
yes) newlib_iconv_external_ccs=yes ;;
|
|
no) newlib_iconv_external_ccs=no ;;
|
|
*) AC_MSG_ERROR(bad value ${enableval} for newlib-iconv-external-ccs option) ;;
|
|
esac
|
|
fi], [newlib_iconv_external_ccs=${newlib_iconv_external_ccs}])dnl
|
|
|
|
dnl Support --disable-newlib-atexit-dynamic-alloc
|
|
AC_ARG_ENABLE(newlib-atexit-dynamic-alloc,
|
|
[ --disable-newlib-atexit-alloc disable dynamic allocation of atexit entries],
|
|
[if test "${newlib_atexit_dynamic_alloc+set}" != set; then
|
|
case "${enableval}" in
|
|
yes) newlib_atexit_dynamic_alloc=yes ;;
|
|
no) newlib_atexit_dynamic_alloc=no ;;
|
|
*) AC_MSG_ERROR(bad value ${enableval} for newlib-atexit-dynamic-alloc option) ;;
|
|
esac
|
|
fi], [newlib_atexit_dynamic_alloc=${newlib_atexit_dynamic_alloc}])dnl
|
|
|
|
dnl Support --enable-newlib-reent-small
|
|
AC_ARG_ENABLE(newlib-reent-small,
|
|
[ --enable-newlib-reent-small enable small reentrant struct support],
|
|
[case "${enableval}" in
|
|
yes) newlib_reent_small=yes;;
|
|
no) newlib_reent_small=no ;;
|
|
*) AC_MSG_ERROR(bad value ${enableval} for newlib-reent-small option) ;;
|
|
esac], [newlib_reent_small=])dnl
|
|
|
|
NEWLIB_CONFIGURE(.)
|
|
|
|
dnl We have to enable libtool after NEWLIB_CONFIGURE because if we try and
|
|
dnl add it into NEWLIB_CONFIGURE, executable tests are made before the first
|
|
dnl line of the macro which fail because appropriate LDFLAGS are not set.
|
|
if test "${use_libtool}" = "yes"; then
|
|
AC_LIBTOOL_WIN32_DLL
|
|
AM_PROG_LIBTOOL
|
|
AC_PROG_AWK
|
|
fi
|
|
|
|
AC_ARG_ENABLE(newlib_hw_fp,
|
|
[ --enable-newlib-hw-fp Turn on hardware floating point math],
|
|
[case "${enableval}" in
|
|
yes) newlib_hw_fp=true ;;
|
|
no) newlib_hw_fp=false ;;
|
|
*) AC_MSG_ERROR(bad value ${enableval} for --enable-newlib-hw-fp) ;;
|
|
esac],[newlib_hw_fp=false])
|
|
AM_CONDITIONAL(NEWLIB_HW_FP, test x$newlib_hw_fp = xtrue)
|
|
|
|
# These get added in the top-level configure.in, except in the case where
|
|
# newlib is being built natively.
|
|
LIBC_INCLUDE_GREP=`echo ${CC} | grep \/libc\/include`
|
|
abs_newlib_basedir=`cd ${newlib_basedir} && pwd`
|
|
if test -z "${LIBC_INCLUDE_GREP}"; then
|
|
CC_FOR_NEWLIB="${CC} -I$PWD/targ-include -I${abs_newlib_basedir}/libc/include"
|
|
else
|
|
CC_FOR_NEWLIB="${CC}"
|
|
fi
|
|
AC_SUBST(CC_FOR_NEWLIB)
|
|
|
|
AC_CONFIG_SUBDIRS(libc)
|
|
AC_CONFIG_SUBDIRS(libm)
|
|
|
|
if test -z "${with_multisubdir}"; then
|
|
AC_CONFIG_SUBDIRS(doc)
|
|
have_doc=yes
|
|
else
|
|
have_doc=
|
|
fi
|
|
AM_CONDITIONAL(HAVE_DOC, test x$have_doc = xyes)
|
|
|
|
EXTRA_DIRS=
|
|
case $host in
|
|
i[[34567]]86-pc-linux-*)
|
|
AC_CONFIG_SUBDIRS(iconvdata)
|
|
EXTRA_DIRS=iconvdata
|
|
;;
|
|
esac
|
|
AC_SUBST(EXTRA_DIRS)
|
|
|
|
CRT0=
|
|
CRT0_DIR=
|
|
if test "x${have_crt0}" = "xyes"; then
|
|
CRT0=crt0.o
|
|
CRT0_DIR=libc/
|
|
fi
|
|
AC_SUBST(CRT0)
|
|
AC_SUBST(CRT0_DIR)
|
|
|
|
CRT1=${crt1}
|
|
CRT1_DIR=
|
|
if test -n "${crt1_dir}"; then
|
|
CRT1_DIR=${crt1_dir}/
|
|
fi
|
|
AC_SUBST(CRT1)
|
|
AC_SUBST(CRT1_DIR)
|
|
|
|
if test -n "${libm_machine_dir}"; then
|
|
LIBM_MACHINE_OBJECTLIST=libm/machine/${libm_machine_dir}/objectlist.awk.in
|
|
fi
|
|
AC_SUBST(LIBM_MACHINE_OBJECTLIST)
|
|
|
|
if test -n "${machine_dir}"; then
|
|
MACHINE_OBJECTLIST=libc/machine/${machine_dir}/objectlist.awk.in
|
|
fi
|
|
AC_SUBST(MACHINE_OBJECTLIST)
|
|
|
|
if test -n "${sys_dir}"; then
|
|
SYS_OBJECTLIST=libc/sys/${sys_dir}/objectlist.awk.in
|
|
fi
|
|
AC_SUBST(SYS_OBJECTLIST)
|
|
|
|
if test "${have_sys_mach_dir}" = "yes"; then
|
|
SYS_MACH_OBJECTLIST=libc/sys/${sys_dir}/machine/${machine_dir}/objectlist.awk.in
|
|
fi
|
|
AC_SUBST(SYS_MACH_OBJECTLIST)
|
|
|
|
if test -n "${posix_dir}"; then
|
|
POSIX_OBJECTLIST=libc/${posix_dir}/objectlist.awk.in
|
|
fi
|
|
AC_SUBST(POSIX_OBJECTLIST)
|
|
|
|
if test -n "${signal_dir}"; then
|
|
SIGNAL_OBJECTLIST=libc/${signal_dir}/objectlist.awk.in
|
|
fi
|
|
AC_SUBST(SIGNAL_OBJECTLIST)
|
|
|
|
if test -n "${syscall_dir}"; then
|
|
SYSCALL_OBJECTLIST=libc/${syscall_dir}/objectlist.awk.in
|
|
fi
|
|
AC_SUBST(SYSCALL_OBJECTLIST)
|
|
|
|
if test -n "${unix_dir}"; then
|
|
UNIX_OBJECTLIST=libc/${unix_dir}/objectlist.awk.in
|
|
fi
|
|
AC_SUBST(UNIX_OBJECTLIST)
|
|
|
|
if test -n "${stdio64_dir}"; then
|
|
STDIO64_OBJECTLIST=libc/${stdio64_dir}/objectlist.awk.in
|
|
fi
|
|
AC_SUBST(STDIO64_OBJECTLIST)
|
|
|
|
# Put a plausible default for CC_FOR_BUILD in Makefile.
|
|
if test -z "$CC_FOR_BUILD"; then
|
|
CC_FOR_BUILD=gcc
|
|
fi
|
|
AC_SUBST(CC_FOR_BUILD)
|
|
|
|
if test "${newlib_elix_level}" -gt "0"; then
|
|
AC_DEFINE_UNQUOTED(_ELIX_LEVEL,${newlib_elix_level})
|
|
fi
|
|
|
|
if test "${newlib_io_long_long}" = "yes"; then
|
|
AC_DEFINE_UNQUOTED(_WANT_IO_LONG_LONG)
|
|
fi
|
|
|
|
if test "${newlib_io_long_double}" = "yes"; then
|
|
AC_DEFINE_UNQUOTED(_WANT_IO_LONG_DOUBLE)
|
|
fi
|
|
|
|
if test "${newlib_io_pos_args}" = "yes"; then
|
|
AC_DEFINE_UNQUOTED(_WANT_IO_POS_ARGS)
|
|
fi
|
|
|
|
if test "${newlib_reent_small}" = "yes"; then
|
|
AC_DEFINE_UNQUOTED(_WANT_REENT_SMALL)
|
|
fi
|
|
|
|
if test "${newlib_mb}" = "yes"; then
|
|
AC_DEFINE_UNQUOTED(_MB_CAPABLE)
|
|
AC_DEFINE_UNQUOTED(_MB_LEN_MAX,8)
|
|
else
|
|
AC_DEFINE_UNQUOTED(_MB_LEN_MAX,1)
|
|
fi
|
|
|
|
if test "${newlib_iconv_external_ccs}" = "yes"; then
|
|
AC_DEFINE_UNQUOTED(_ICONV_ENABLE_EXTERNAL_CCS)
|
|
fi
|
|
|
|
AC_DEFINE_UNQUOTED(_NEWLIB_VERSION,"NEWLIB_VERSION")
|
|
|
|
if test "${multilib}" = "yes"; then
|
|
multilib_arg="--enable-multilib"
|
|
else
|
|
multilib_arg=
|
|
fi
|
|
|
|
if test "${newlib_iconv}" = "yes"; then
|
|
AC_DEFINE_UNQUOTED(_ICONV_ENABLED,1)
|
|
fi
|
|
|
|
if test "x${newlib_iconv_external_ccs}" = "xyes"; then
|
|
if test "x${newlib_iconv}" = "x"; then
|
|
AC_MSG_ERROR(--enable-newlib-iconv-external-ccs option can't be used if iconv library is disabled, use --enable-newlib-iconv to enable it.)
|
|
fi
|
|
AC_DEFINE_UNQUOTED(_ICONV_ENABLE_EXTERNAL_CCS,1)
|
|
fi
|
|
|
|
if test "${newlib_atexit_dynamic_alloc}" = "yes"; then
|
|
AC_DEFINE_UNQUOTED(_ATEXIT_DYNAMIC_ALLOC)
|
|
fi
|
|
|
|
dnl
|
|
dnl Parse --enable-newlib-iconv-encodings option argument
|
|
dnl
|
|
|
|
if test "x${iconv_encodings}" != "x" \
|
|
|| test "x${iconv_to_encodings}" != "x" \
|
|
|| test "x${iconv_from_encodings}" != "x"; then
|
|
if test "x${newlib_iconv}" = "x"; then
|
|
AC_MSG_ERROR([--enable-newlib-iconv-encodings, --enable-newlib-iconv-from-encodings and --enable-newlib-iconv-to-encodings option can't be used if iconv library is disabled, use --enable-newlib-iconv to enable it.])
|
|
fi
|
|
|
|
dnl Normalize encodings names and delete commas
|
|
iconv_encodings=`echo "${iconv_encodings}" | sed -e 's/,/ /g' -e 's/-/_/g' -e 'y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/'`
|
|
iconv_to_encodings=`echo "${iconv_to_encodings}" | sed -e 's/,/ /g' -e 's/-/_/g' -e 'y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/'`
|
|
iconv_from_encodings=`echo "${iconv_from_encodings}" | sed -e 's/,/ /g' -e 's/-/_/g' -e 'y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/'`
|
|
|
|
dnl Get the list of available encodings excluding comments
|
|
dnl Join line with previous if the first character is whitespace
|
|
available_encodings=`cat "${srcdir}/libc/iconv/encoding.aliases" | sed -e '/^#.*/d'`
|
|
|
|
dnl Check if required encodings are supported
|
|
dnl Convert aliases to names
|
|
|
|
dnl iconv_encodings
|
|
iconv_encodings1="${iconv_encodings}"
|
|
iconv_encodings=""
|
|
for encoding in ${iconv_encodings1}; do
|
|
result=`echo "${available_encodings}" | grep -e "\(^\| \)${encoding}\( \|\$\)"`
|
|
if test $? != "0"; then
|
|
AC_MSG_ERROR(${encoding} is not supported - see ${srcdir}/libc/iconv/encoding.aliases file for the list of available encodings)
|
|
fi
|
|
encoding1=`echo "${result}" | sed -e 's/\(^[[^ ]]*\).*$/\1/'`
|
|
iconv_encodings="${iconv_encodings} ${encoding1}"
|
|
done
|
|
dnl Enable appropriate option in newlib.h
|
|
for encoding in ${iconv_encodings}; do
|
|
opt=_ICONV_TO_ENCODING_`echo "${encoding}" | sed -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'`
|
|
AC_DEFINE_UNQUOTED($opt,1)
|
|
opt=_ICONV_FROM_ENCODING_`echo "${encoding}" | sed -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'`
|
|
AC_DEFINE_UNQUOTED($opt,1)
|
|
done
|
|
|
|
dnl iconv_to_encodings
|
|
iconv_encodings1="${iconv_to_encodings}"
|
|
iconv_to_encodings=""
|
|
for encoding in ${iconv_encodings1}; do
|
|
result=`echo "${available_encodings}" | grep -e "\(^\| \)${encoding}\( \|\$\)"`
|
|
if test $? != "0"; then
|
|
AC_MSG_ERROR(${encoding} is not supported - see ${srcdir}/libc/iconv/encoding.aliases file for the list of available encodings)
|
|
fi
|
|
encoding1=`echo "${result}" | sed -e 's/\(^[[^ ]]*\).*$/\1/'`
|
|
iconv_to_encodings="${iconv_to_encodings} ${encoding1}"
|
|
done
|
|
dnl Enable appropriate option in newlib.h
|
|
for encoding in ${iconv_to_encodings}; do
|
|
opt=_ICONV_TO_ENCODING_`echo "${encoding}" | sed -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'`
|
|
AC_DEFINE_UNQUOTED($opt,1)
|
|
done
|
|
|
|
dnl iconv_from_encodings
|
|
iconv_encodings1="${iconv_from_encodings}"
|
|
iconv_from_encodings=""
|
|
for encoding in ${iconv_encodings1}; do
|
|
result=`echo "${available_encodings}" | grep -e "\(^\| \)${encoding}\( \|\$\)"`
|
|
if test $? != "0"; then
|
|
AC_MSG_ERROR(${encoding} is not supported - see ${srcdir}/libc/iconv/encoding.aliases file for the list of available encodings)
|
|
fi
|
|
encoding1=`echo "${result}" | sed -e 's/\(^[[^ ]]*\).*$/\1/'`
|
|
iconv_from_encodings="${iconv_from_encodings} ${encoding1}"
|
|
done
|
|
dnl Enable appropriate option in newlib.h
|
|
for encoding in ${iconv_from_encodings}; do
|
|
opt=_ICONV_FROM_ENCODING_`echo "${encoding}" | sed -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'`
|
|
AC_DEFINE_UNQUOTED($opt,1)
|
|
done
|
|
fi;
|
|
|
|
AC_CACHE_CHECK(for .preinit_array/.init_array/.fini_array support,
|
|
libc_cv_initfinit_array, [dnl
|
|
cat > conftest.c <<EOF
|
|
int _start (void) { return 0; }
|
|
int __start (void) { return 0; }
|
|
int foo (void) { return 1; }
|
|
int (*fp) (void) __attribute__ ((section (".init_array"))) = foo;
|
|
EOF
|
|
if AC_TRY_COMMAND([${CC} $CFLAGS $CPPFLAGS $LDFLAGS -o conftest conftest.c
|
|
-static -nostartfiles -nostdlib 1>&AS_MESSAGE_LOG_FD])
|
|
then
|
|
if ${READELF} -S conftest | grep -e INIT_ARRAY > /dev/null; then
|
|
libc_cv_initfinit_array=yes
|
|
else
|
|
libc_cv_initfinit_array=no
|
|
fi
|
|
else
|
|
libc_cv_initfinit_array=no
|
|
fi
|
|
rm -f conftest*])
|
|
AC_SUBST(libc_cv_initfinit_array)
|
|
if test $libc_cv_initfinit_array = yes; then
|
|
AC_DEFINE_UNQUOTED(HAVE_INITFINI_ARRAY)
|
|
fi
|
|
|
|
AC_CACHE_CHECK(for array aliasing support,
|
|
libc_cv_array_aliasing, [dnl
|
|
cat > conftest.c <<EOF
|
|
char x[3] = { 'a', 'b', 'c' };
|
|
extern char y[2] __attribute__((alias ("x+1")));
|
|
EOF
|
|
if AC_TRY_COMMAND([${CC} $CFLAGS $CPPFLAGS -c conftest.c
|
|
1>&AS_MESSAGE_LOG_FD])
|
|
then
|
|
libc_cv_array_aliasing=yes
|
|
else
|
|
libc_cv_array_aliasing=no
|
|
fi
|
|
rm -f conftest*])
|
|
AC_SUBST(libc_cv_array_aliasing)
|
|
if test $libc_cv_array_aliasing = yes; then
|
|
AC_DEFINE_UNQUOTED(_HAVE_ARRAY_ALIASING)
|
|
fi
|
|
|
|
AC_CONFIG_FILES([Makefile],
|
|
[if test -n "$CONFIG_FILES"; then
|
|
unset ac_file
|
|
. ${newlib_basedir}/../config-ml.in
|
|
fi],
|
|
srcdir=${srcdir}
|
|
host=${host}
|
|
with_multisubdir=${with_multisubdir}
|
|
ac_configure_args="${multilib_arg} ${ac_configure_args}"
|
|
CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
|
|
newlib_basedir=${newlib_basedir}
|
|
CC="${CC}"
|
|
LDFLAGS="${LDFLAGS}"
|
|
)
|
|
AC_OUTPUT
|