diff options
Diffstat (limited to 'newlib/configure.in')
| -rw-r--r-- | newlib/configure.in | 305 |
1 files changed, 8 insertions, 297 deletions
diff --git a/newlib/configure.in b/newlib/configure.in index 3cd213c6f..3b33510b1 100644 --- a/newlib/configure.in +++ b/newlib/configure.in @@ -1,101 +1,12 @@ dnl This is the newlib configure.in file. dnl Process this file with autoconf to produce a configure script. -AC_PREREQ(2.13) +AC_PREREQ(2.5) AC_INIT(libc) -AM_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 - NEWLIB_CONFIGURE(.) dnl We have to enable libtool after NEWLIB_CONFIGURE because if we try and @@ -126,45 +37,17 @@ else fi AM_CONDITIONAL(HAVE_DOC, test x$have_doc = xyes) -EXTRA_DIRS= -case $host in - i[[34567]]86-pc-linux-*) - configdirs="${configdirs} iconvdata" - EXTRA_DIRS=iconvdata - ;; -esac -AC_SUBST(EXTRA_DIRS) - -# 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(${configdirs}) CRT0= CRT0_DIR= -if test "x${have_crt0}" = "xyes"; then +if test -n "${sys_dir}"; then CRT0=crt0.o - CRT0_DIR=libc/ + CRT0_DIR=libc fi AC_SUBST(CRT0) AC_SUBST(CRT0_DIR) -CRT1=${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 @@ -180,11 +63,6 @@ if test -n "${sys_dir}"; then fi AC_SUBST(SYS_OBJECTLIST) -if test "${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 @@ -205,192 +83,25 @@ if test -n "${unix_dir}"; then fi AC_SUBST(UNIX_OBJECTLIST) -if test -n "${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 + if test "x$cross_compiling" = "xno"; then + CC_FOR_BUILD='$(CC)' + else + CC_FOR_BUILD=gcc + fi 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_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 "${newlib_iconv_external_ccs}" = "yes"; then -AC_DEFINE_UNQUOTED(_ICONV_ENABLE_EXTERNAL_CCS) -fi - -if test "${newlib_atexit_dynamic_alloc}" = "yes"; then -AC_DEFINE_UNQUOTED(_ATEXIT_DYNAMIC_ALLOC) -fi - -AC_DEFINE_UNQUOTED(_NEWLIB_VERSION,"$VERSION") - if test "${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${newlib_iconv}" = "x"; then - AC_MSG_ERROR(--enable-newlib-iconv-external-ccs option can't be used if iconv library is disabled, use --enable-newlib-iconv to enable it.) - fi - AC_DEFINE_UNQUOTED(_ICONV_ENABLE_EXTERNAL_CCS,1) -fi - -dnl -dnl Parse --enable-newlib-iconv-encodings option argument -dnl -if test "x${iconv_encodings}" != "x" \ - || test "x${iconv_to_encodings}" != "x" \ - || test "x${iconv_from_encodings}" != "x"; then - - dnl Check that --enable-newlib-iconv was enabled - 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 $libc_cv_array_aliasing = yes; then - AC_DEFINE_UNQUOTED(_HAVE_ARRAY_ALIASING) -fi AC_OUTPUT(Makefile, [if test -n "$CONFIG_FILES"; then - unset ac_file . ${newlib_basedir}/../config-ml.in fi], srcdir=${srcdir} |