682 lines
27 KiB
Plaintext
682 lines
27 KiB
Plaintext
dnl This is the newlib configure.in file.
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dnl Process this file with autoconf to produce a configure script.
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AC_INIT([newlib],[NEWLIB_VERSION])
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AC_CONFIG_SRCDIR([libc])
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dnl Since we can't control what defines autoheader picks up (various autoconf
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dnl macros will add their own), filter out all the ones w/out a _ prefix. All
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dnl the ones we want to export use a _ prefix, and all the rest we don't want
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dnl to export as it'll pollute the namespace of newlib users.
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dnl We also filter out version defines that we want in _newlib_version.h.
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dnl NB: newlib.h must be the first AC_CONFIG_HEADERS call for autoheader.
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AC_CONFIG_HEADERS(
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[newlib.h:newlib.hin],
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[sed -i.tmp -E -e '/^#define [^_]/d' -e '/^\/\* #undef [^_]/d' -e '/_NEWLIB_VERSION|__NEWLIB_(MINOR|PATCHLEVEL)__|__NEWLIB__/d' newlib.h && rm -f newlib.h.tmp])
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AH_TOP([/* NB: The contents are filtered before being installed. */
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#ifndef __NEWLIB_H__
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#define __NEWLIB_H__ 1
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/* Newlib version */
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#include <_newlib_version.h>])
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AH_BOTTOM([#endif /* !__NEWLIB_H__ */])
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AC_CONFIG_HEADERS([_newlib_version.h:_newlib_version.hin])
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dnl Can't be done in NEWLIB_CONFIGURE because that confuses automake.
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AC_CONFIG_AUX_DIR(..)
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dnl Support --enable-newlib-io-pos-args
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dnl This option is actually read in libc/configure.in. It is repeated
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dnl here so that it shows up in the help text.
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AC_ARG_ENABLE(newlib-io-pos-args,
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[ --enable-newlib-io-pos-args enable printf-family positional arg support],
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[case "${enableval}" in
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yes) newlib_io_pos_args=yes ;;
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no) newlib_io_pos_args=no ;;
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*) AC_MSG_ERROR(bad value ${enableval} for newlib-io-pos-args option) ;;
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esac], [newlib_io_pos_args=])dnl
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dnl Support --enable-newlib-io-c99-formats
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AC_ARG_ENABLE(newlib-io-c99-formats,
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[ --enable-newlib-io-c99-formats enable C99 support in IO functions like printf/scanf],
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[case "${enableval}" in
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yes) newlib_io_c99_formats=yes;;
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no) newlib_io_c99_formats=no ;;
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*) AC_MSG_ERROR(bad value ${enableval} for newlib-io-c99-formats option) ;;
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esac], [newlib_io_c99_formats=])dnl
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dnl Support --enable-newlib-register-fini
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AC_ARG_ENABLE(newlib-register-fini,
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[ --enable-newlib-register-fini enable finalization function registration using atexit],
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[case "${enableval}" in
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yes) newlib_register_fini=yes;;
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no) newlib_register_fini=no ;;
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*) AC_MSG_ERROR(bad value ${enableval} for newlib-register-fini option) ;;
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esac], [newlib_register_fini=])dnl
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dnl Support --enable-newlib-io-long-long
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AC_ARG_ENABLE(newlib-io-long-long,
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[ --enable-newlib-io-long-long enable long long type support in IO functions like printf/scanf],
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[case "${enableval}" in
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yes) newlib_io_long_long=yes;;
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no) newlib_io_long_long=no ;;
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*) AC_MSG_ERROR(bad value ${enableval} for newlib-io-long-long option) ;;
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esac], [newlib_io_long_long=])dnl
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dnl Support --enable-newlib-io-long-double
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AC_ARG_ENABLE(newlib-io-long-double,
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[ --enable-newlib-io-long-double enable long double type support in IO functions printf/scanf],
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[case "${enableval}" in
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yes) newlib_io_long_double=yes;;
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no) newlib_io_long_double=no ;;
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*) AC_MSG_ERROR(bad value ${enableval} for newlib-io-long-double option) ;;
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esac], [newlib_io_long_double=])dnl
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dnl If multibyte support is enabled, iconv should be enabled too
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dnl Support --enable-newlib-mb
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AC_ARG_ENABLE(newlib-mb,
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[ --enable-newlib-mb enable multibyte support],
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[case "${enableval}" in
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yes) newlib_mb=yes;;
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no) newlib_mb=no ;;
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*) AC_MSG_ERROR(bad value ${enableval} for newlib-mb option) ;;
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esac], [newlib_mb=])dnl
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dnl Enable verification of successful memory allocation for _REENT_CHECK family of macros
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dnl Support --disable-newlib-reent-check-verify
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AC_ARG_ENABLE(newlib-reent-check-verify,
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[ --disable-newlib-reent-check-verify disable checking of _REENT_CHECK memory allocation],
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[case "${enableval}" in
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yes) newlib_reent_check_verify=yes;;
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no) newlib_reent_check_verify=no ;;
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*) AC_MSG_ERROR(bad value ${enableval} for newlib-reent-check-verify option) ;;
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esac], [newlib_reent_check_verify=])dnl
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dnl Support --enable-newlib-iconv-encodings
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AC_ARG_ENABLE(newlib-iconv-encodings,
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[ --enable-newlib-iconv-encodings enable specific comma-separated list of bidirectional iconv encodings to be built-in],
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[if test x${enableval} = x; then
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AC_MSG_ERROR(bad value ${enableval} for newlib-iconv-encodings option - use comma-separated encodings list)
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fi
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iconv_encodings=${enableval}
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], [iconv_encodings=])dnl
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dnl Support --enable-newlib-iconv-from-encodings
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AC_ARG_ENABLE(newlib-iconv-from-encodings,
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[ --enable-newlib-iconv-from-encodings enable specific comma-separated list of \"from\" iconv encodings to be built-in],
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[if test x${enableval} = x; then
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AC_MSG_ERROR(bad value ${enableval} for newlib-iconv-from-encodings option - use comma-separated encodings list)
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fi
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iconv_from_encodings=${enableval}
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], [iconv_from_encodings=])dnl
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dnl Support --enable-newlib-iconv-to-encodings
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AC_ARG_ENABLE(newlib-iconv-to-encodings,
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[ --enable-newlib-iconv-to-encodings enable specific comma-separated list of \"to\" iconv encodings to be built-in],
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[if test x${enableval} = x; then
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AC_MSG_ERROR(bad value ${enableval} for newlib-iconv-to-encodings option - use comma-separated encodings list)
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fi
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iconv_to_encodings=${enableval}
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], [iconv_to_encodings=])dnl
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dnl Support --enable-newlib-iconv-external-ccs
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AC_ARG_ENABLE(newlib-iconv-external-ccs,
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[ --enable-newlib-iconv-external-ccs enable capabilities to load external CCS files for iconv],
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[if test "${newlib_iconv_external_ccs+set}" != set; then
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case "${enableval}" in
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yes) newlib_iconv_external_ccs=yes ;;
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no) newlib_iconv_external_ccs=no ;;
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*) AC_MSG_ERROR(bad value ${enableval} for newlib-iconv-external-ccs option) ;;
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esac
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fi], [newlib_iconv_external_ccs=${newlib_iconv_external_ccs}])dnl
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dnl Support --disable-newlib-atexit-dynamic-alloc
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AC_ARG_ENABLE(newlib-atexit-dynamic-alloc,
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[ --disable-newlib-atexit-dynamic-alloc disable dynamic allocation of atexit entries],
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[if test "${newlib_atexit_dynamic_alloc+set}" != set; then
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case "${enableval}" in
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yes) newlib_atexit_dynamic_alloc=yes ;;
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no) newlib_atexit_dynamic_alloc=no ;;
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*) AC_MSG_ERROR(bad value ${enableval} for newlib-atexit-dynamic-alloc option) ;;
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esac
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fi], [newlib_atexit_dynamic_alloc=${newlib_atexit_dynamic_alloc}])dnl
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dnl Support --enable-newlib-global-atexit
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dnl Enable atexit data structure as global variables to save memory usage in
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dnl _reent. This is no longer optional. It is enabled in all Newlib
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dnl configurations.
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AC_ARG_ENABLE(newlib-global-atexit,
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[ --enable-newlib-global-atexit enable atexit data structure as global],
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[if test "${newlib_global_atexit+set}" != set; then
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case "${enableval}" in
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yes) newlib_global_atexit=yes ;;
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*) AC_MSG_ERROR(bad value ${enableval} for newlib-global-atexit option) ;;
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esac
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fi], [newlib_global_atexit=yes])dnl
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dnl Support --enable-newlib-reent-small
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AC_ARG_ENABLE(newlib-reent-small,
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[ --enable-newlib-reent-small enable small reentrant struct support],
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[case "${enableval}" in
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yes) newlib_reent_small=yes;;
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no) newlib_reent_small=no ;;
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*) AC_MSG_ERROR(bad value ${enableval} for newlib-reent-small option) ;;
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esac], [newlib_reent_small=])dnl
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dnl Support --enable-newlib-reent-binary-compat
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AC_ARG_ENABLE(newlib-reent-binary-compat,
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[ --enable-newlib-reent-binary-compat enable backward binary compatibility for struct _reent],
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[if test "${newlib_reent_binary_compat+set}" != set; then
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case "${enableval}" in
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yes) newlib_reent_binary_compat=yes ;;
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no) newlib_reent_binary_compat=no ;;
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*) AC_MSG_ERROR(bad value ${enableval} for newlib-enable-reent-binary-compat option) ;;
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esac
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fi], [newlib_reent_binary_compat=no])dnl
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dnl Support --enable-newlib-reent-thread-local
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AC_ARG_ENABLE(newlib-reent-thread-local,
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[ --enable-newlib-reent-thread-local enable thread-local storage objects as a replacment for struct _reent members],
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[if test "${newlib_reent_thread_local+set}" != set; then
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case "${enableval}" in
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yes) newlib_reent_thread_local=yes ;;
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no) newlib_reent_thread_local=no ;;
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*) AC_MSG_ERROR(bad value ${enableval} for newlib-enable-reent-thread-local option) ;;
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esac
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fi], [newlib_reent_thread_local=no])dnl
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dnl Support --enable-newlib-global-stdio-streams
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dnl This is no longer optional. It is enabled in all Newlib configurations.
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AC_ARG_ENABLE(newlib-global-stdio-streams,
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[ --enable-newlib-global-stdio-streams enable global stdio streams],
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[case "${enableval}" in
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yes) newlib_global_stdio_streams=yes;;
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*) AC_MSG_ERROR(bad value ${enableval} for newlib-global-stdio-streams option) ;;
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esac], [newlib_global_stdio_streams=yes])dnl
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dnl Support --disable-newlib-fvwrite-in-streamio
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AC_ARG_ENABLE(newlib-fvwrite-in-streamio,
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[ --disable-newlib-fvwrite-in-streamio disable iov in streamio],
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[if test "${newlib_fvwrite_in_streamio+set}" != set; then
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case "${enableval}" in
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yes) newlib_fvwrite_in_streamio=yes ;;
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no) newlib_fvwrite_in_streamio=no ;;
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*) AC_MSG_ERROR(bad value ${enableval} for newlib-fvwrite-in-streamio option) ;;
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esac
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fi], [newlib_fvwrite_in_streamio=yes])dnl
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dnl Support --disable-newlib-fseek-optimization
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AC_ARG_ENABLE(newlib-fseek-optimization,
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[ --disable-newlib-fseek-optimization disable fseek optimization],
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[if test "${newlib_fseek_optimization+set}" != set; then
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case "${enableval}" in
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yes) newlib_fseek_optimization=yes ;;
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no) newlib_fseek_optimization=no ;;
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*) AC_MSG_ERROR(bad value ${enableval} for newlib-fseek-optimization option) ;;
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esac
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fi], [newlib_fseek_optimization=yes])dnl
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dnl Support --enable-newlib-wide-orient
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dnl This option is also read in libc/configure.in. It is repeated
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dnl here so that it shows up in the help text.
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AC_ARG_ENABLE(newlib_wide_orient,
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[ --disable-newlib-wide-orient Turn off wide orientation in streamio],
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[case "${enableval}" in
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yes) newlib_wide_orient=yes ;;
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no) newlib_wide_orient=no ;;
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*) AC_MSG_ERROR(bad value ${enableval} for newlib-wide-orient) ;;
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esac],[newlib_wide_orient=yes])
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dnl Support --enable-newlib-nano-malloc
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dnl This option is also read in libc/configure.in. It is repeated
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dnl here so that it shows up in the help text.
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AC_ARG_ENABLE(newlib-nano-malloc,
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[ --enable-newlib-nano-malloc use small-footprint nano-malloc implementation],
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[if test "${newlib_nano_malloc+set}" != set; then
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case "${enableval}" in
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yes) newlib_nano_malloc=yes ;;
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no) newlib_nano_malloc=no ;;
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*) AC_MSG_ERROR(bad value ${enableval} for newlib-nano-malloc option) ;;
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esac
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fi], [newlib_nano_malloc=])dnl
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AM_CONDITIONAL(NEWLIB_NANO_MALLOC, test x$newlib_nano_malloc = xyes)
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dnl Support --disable-newlib-unbuf-stream-opt
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AC_ARG_ENABLE(newlib-unbuf-stream-opt,
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[ --disable-newlib-unbuf-stream-opt disable unbuffered stream optimization in streamio],
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[if test "${newlib_unbuf_stream_opt+set}" != set; then
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case "${enableval}" in
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yes) newlib_unbuf_stream_opt=yes ;;
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no) newlib_unbuf_stream_opt=no ;;
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*) AC_MSG_ERROR(bad value ${enableval} for newlib-unbuf-stream-opt option) ;;
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esac
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fi], [newlib_unbuf_stream_opt=yes])dnl
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dnl Support --enable-lite-exit
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dnl Lite exit is a size-reduced implementation of exit that doesn't invoke
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dnl clean-up functions such as _fini or global destructors.
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AC_ARG_ENABLE(lite-exit,
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[ --enable-lite-exit enable light weight exit],
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[if test "${lite_exit+set}" != set; then
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case "${enableval}" in
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yes) lite_exit=yes ;;
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no) lite_exit=no ;;
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*) AC_MSG_ERROR(bad value ${enableval} for lite-exit option) ;;
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esac
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fi], [lite_exit=no])dnl
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dnl Support --enable-newlib-nano-formatted-io
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dnl This option is also read in libc/configure.in. It is repeated
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dnl here so that it shows up in the help text.
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AC_ARG_ENABLE(newlib_nano_formatted_io,
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[ --enable-newlib-nano-formatted-io Use small-footprint nano-formatted-IO implementation],
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[case "${enableval}" in
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yes) newlib_nano_formatted_io=yes ;;
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no) newlib_nano_formatted_io=no ;;
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*) AC_MSG_ERROR(bad value ${enableval} for newlib-nano-formatted-io) ;;
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esac],[newlib_nano_formatted_io=no])
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AM_CONDITIONAL(NEWLIB_NANO_FORMATTED_IO, test x$newlib_nano_formatted_io = xyes)
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dnl Support --enable-retargetable-locking
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dnl This option is also read in libc/configure.in. It is repeated
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dnl here so that it shows up in the help text.
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AC_ARG_ENABLE(newlib-retargetable-locking,
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[ --enable-newlib-retargetable-locking Allow locking routines to be retargeted at link time],
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[case "${enableval}" in
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yes) newlib_retargetable_locking=yes ;;
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no) newlib_retargetable_locking=no ;;
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*) AC_MSG_ERROR(bad value ${enableval} for newlib-retargetable-locking) ;;
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esac],[newlib_retargetable_locking=no])
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AM_CONDITIONAL(NEWLIB_RETARGETABLE_LOCKING, test x$newlib_retargetable_locking = xyes)
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dnl Support --enable-newlib-long-time_t
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AC_ARG_ENABLE(newlib-long-time_t,
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[ --enable-newlib-long-time_t define time_t to long],
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[if test "${newlib_long_time_t+set}" != set; then
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case "${enableval}" in
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yes) newlib_long_time_t=yes ;;
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no) newlib_long_time_t=no ;;
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*) AC_MSG_ERROR(bad value ${enableval} for newlib-long-time_t option) ;;
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esac
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fi], [newlib_long_time_t=no])dnl
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dnl Support --enable-newlib-use-gdtoa
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AC_ARG_ENABLE(newlib-use-gdtoa,
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[ --enable-newlib-use-gdtoa Use gdtoa rather than legacy ldtoa],
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[if test "${newlib_use_gdtoa+set}" != set; then
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case "${enableval}" in
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yes) newlib_use_gdtoa=yes ;;
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no) newlib_use_gdtoa=no ;;
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*) AC_MSG_ERROR(bad value ${enableval} for newlib-use-gdtoa option) ;;
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esac
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fi], [newlib_use_gdtoa=yes])dnl
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AM_ENABLE_MULTILIB(, ..)
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NEWLIB_CONFIGURE(.)
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dnl The following is being disabled because the mathfp library is
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dnl not up to standard due to inaccuracies caused by some of the
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dnl floating-point algorithms used. If you wish to work on this,
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dnl comment out the following line and uncomment out the lines
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dnl following it to re-enable the feature.
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newlib_hw_fp=false
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#AC_ARG_ENABLE(newlib_hw_fp,
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#[ --enable-newlib-hw-fp Turn on hardware floating point math],
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#[case "${enableval}" in
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# yes) newlib_hw_fp=true ;;
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# no) newlib_hw_fp=false ;;
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# *) AC_MSG_ERROR(bad value ${enableval} for --enable-newlib-hw-fp) ;;
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# esac],[newlib_hw_fp=false])
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AM_CONDITIONAL(NEWLIB_HW_FP, test x$newlib_hw_fp = xtrue)
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# These get added in the top-level configure.in, except in the case where
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# newlib is being built natively.
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LIBC_INCLUDE_GREP=`echo ${CC} | grep \/libc\/include`
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if test -z "${LIBC_INCLUDE_GREP}"; then
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CC_FOR_NEWLIB="${CC} -I$PWD/targ-include -I${abs_newlib_basedir}/libc/include"
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else
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CC_FOR_NEWLIB="${CC}"
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fi
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AC_SUBST(CC_FOR_NEWLIB)
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m4_include([libc/acinclude.m4])
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m4_include([libm/acinclude.m4])
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if test -z "${with_multisubdir}"; then
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have_multisubdir=no
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else
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have_multisubdir=yes
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fi
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AM_CONDITIONAL(HAVE_DOC, test x$have_multisubdir = xno)
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# Some run-time support libraries provided by GCC (e.g. libgomp) use configure
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# checks to detect certain features, e.g. availability of thread-local storage.
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# The configure script generates a test program and tries to compile and link
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# it. It should use target libraries and startfiles of the build tree if
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# available and not random ones from the installation prefix for this
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# procedure. The search directories specified by -B are a bit special, see
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# for_each_path() in gcc.c of the GCC sources. First a search is performed on
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# all search paths with the multilib directory appended (if desired), then a
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# second search is performed on demand with the base directory only. For each
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# multilib there is a "newlib" subdirectory. This directory is specified by a
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# -B option for the support libraries. In order to find the newlib artifacts
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# (ctr0.o, libc.a, libg.a and libm.a) they must be located in a proper multilib
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# subdirectory withing the build directory.
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AM_CONDITIONAL(HAVE_MULTISUBDIR, test x$have_multisubdir = xyes)
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CRT0=
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CRT0_DIR=
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if test "x${have_crt0}" = "xyes"; then
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CRT0=crt0.o
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CRT0_DIR=libc/sys/${sys_dir}/
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fi
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AM_CONDITIONAL(HAVE_CRT0, test x$have_crt0 = xyes)
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AC_SUBST(CRT0)
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AC_SUBST(CRT0_DIR)
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CRT1=${crt1}
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CRT1_DIR=
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if test -n "${crt1_dir}"; then
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CRT1_DIR=${crt1_dir}/
|
|
fi
|
|
AC_SUBST(CRT1)
|
|
AC_SUBST(CRT1_DIR)
|
|
|
|
# Put a plausible default for CC_FOR_BUILD in Makefile.
|
|
if test -z "$CC_FOR_BUILD"; then
|
|
if test "x$cross_compiling" = "xno"; then
|
|
CC_FOR_BUILD='$(CC)'
|
|
else
|
|
CC_FOR_BUILD=gcc
|
|
fi
|
|
fi
|
|
AC_SUBST(CC_FOR_BUILD)
|
|
|
|
# Also set EXEEXT_FOR_BUILD.
|
|
if test "x$cross_compiling" = "xno"; then
|
|
EXEEXT_FOR_BUILD='$(EXEEXT)'
|
|
else
|
|
AC_CACHE_CHECK([for build system executable suffix], newlib_cv_build_exeext,
|
|
[cat > ac_c_test.c << 'EOF'
|
|
int main() {
|
|
/* Nothing needed here */
|
|
}
|
|
EOF
|
|
${CC_FOR_BUILD} -o ac_c_test am_c_test.c 1>&5 2>&5
|
|
newlib_cv_build_exeext=`echo ac_c_test.* | grep -v ac_c_test.c | sed -e s/ac_c_test//`
|
|
rm -f ac_c_test*
|
|
test x"${newlib_cv_build_exeext}" = x && newlib_cv_build_exeext=no])
|
|
EXEEXT_FOR_BUILD=""
|
|
test x"${newlib_cv_build_exeext}" != xno && EXEEXT_FOR_BUILD=${newlib_cv_build_exeext}
|
|
fi
|
|
AC_SUBST(EXEEXT_FOR_BUILD)
|
|
|
|
AC_DEFINE(_NEWLIB_VERSION, "NEWLIB_VERSION", [The newlib version in string format.])
|
|
AC_DEFINE(__NEWLIB__, NEWLIB_MAJOR_VERSION, [The newlib major version number.])
|
|
AC_DEFINE(__NEWLIB_MINOR__, NEWLIB_MINOR_VERSION, [The newlib minor version number.])
|
|
AC_DEFINE(__NEWLIB_PATCHLEVEL__, NEWLIB_PATCHLEVEL_VERSION, [The newlib patch level.])
|
|
|
|
if test "${newlib_elix_level}" -gt "0"; then
|
|
AC_DEFINE_UNQUOTED(_ELIX_LEVEL, ${newlib_elix_level}, [EL/IX level])
|
|
fi
|
|
|
|
if test "${newlib_reent_check_verify}" = "yes"; then
|
|
AC_DEFINE(_REENT_CHECK_VERIFY, 1, [Verify _REENT_CHECK macros allocate memory successfully.])
|
|
fi
|
|
|
|
if test "${newlib_io_c99_formats}" = "yes"; then
|
|
AC_DEFINE(_WANT_IO_C99_FORMATS, 1, [Enable C99 formats support (e.g. %a, %zu, ...) in IO functions like printf/scanf.])
|
|
fi
|
|
|
|
if test "${newlib_register_fini}" = "yes"; then
|
|
AC_DEFINE(_WANT_REGISTER_FINI, 1, [Register application finalization function using atexit.])
|
|
fi
|
|
|
|
if test "${newlib_io_long_long}" = "yes"; then
|
|
AC_DEFINE(_WANT_IO_LONG_LONG, 1, [Define to enable long long type support in IO functions like printf/scanf.])
|
|
fi
|
|
|
|
if test "${newlib_io_long_double}" = "yes"; then
|
|
AC_DEFINE(_WANT_IO_LONG_DOUBLE, 1, [Define to enable long double type support in IO functions like printf/scanf.])
|
|
fi
|
|
|
|
if test "${newlib_io_pos_args}" = "yes"; then
|
|
AC_DEFINE(_WANT_IO_POS_ARGS, 1, [Positional argument support in printf functions enabled.])
|
|
fi
|
|
|
|
if test "${newlib_reent_small}" = "yes"; then
|
|
AC_DEFINE(_WANT_REENT_SMALL, 1, [Optional reentrant struct support. Used mostly on platforms with very restricted storage.])
|
|
fi
|
|
|
|
if test "${newlib_reent_binary_compat}" = "yes"; then
|
|
AC_DEFINE(_WANT_REENT_BACKWARD_BINARY_COMPAT, 1, [Define to enable backward binary compatibility for struct _reent.])
|
|
fi
|
|
|
|
if test "${newlib_reent_thread_local}" = "yes"; then
|
|
AC_DEFINE(_WANT_REENT_THREAD_LOCAL, 1, [Define to enable thread-local storage objects as a replacment for struct _reent members.])
|
|
fi
|
|
|
|
_mb_len_max=1
|
|
if test "${newlib_mb}" = "yes"; then
|
|
AC_DEFINE(_MB_CAPABLE, 1, [Multibyte supported.])
|
|
_mb_len_max=8
|
|
fi
|
|
AC_DEFINE_UNQUOTED(_MB_LEN_MAX, $_mb_len_max, [Multibyte max length.])
|
|
|
|
dnl These are AC_SUBST instead of AC_DEFINE as they're hand maintained in a
|
|
dnl dedicated _newlib_version.h, and we don't want them in newlib.h.
|
|
AC_SUBST([NEWLIB_VERSION])
|
|
AC_SUBST([NEWLIB_MAJOR_VERSION])
|
|
AC_SUBST([NEWLIB_MINOR_VERSION])
|
|
AC_SUBST([NEWLIB_PATCHLEVEL_VERSION])
|
|
|
|
if test "${newlib_iconv}" = "yes"; then
|
|
AC_DEFINE(_ICONV_ENABLED, 1, [ICONV enabled.])
|
|
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(_ICONV_ENABLE_EXTERNAL_CCS, 1, [Enable ICONV external CCS files loading capabilities.])
|
|
fi
|
|
|
|
if test "${newlib_atexit_dynamic_alloc}" = "yes"; then
|
|
AC_DEFINE(_ATEXIT_DYNAMIC_ALLOC, 1, [If atexit() may dynamically allocate space for cleanup functions.])
|
|
fi
|
|
|
|
if test "${newlib_fvwrite_in_streamio}" = "yes"; then
|
|
AC_DEFINE(_FVWRITE_IN_STREAMIO, 1, [Define if ivo supported in streamio.])
|
|
fi
|
|
|
|
if test "${newlib_fseek_optimization}" = "yes"; then
|
|
AC_DEFINE(_FSEEK_OPTIMIZATION, 1, [Define if fseek functions support seek optimization.])
|
|
fi
|
|
|
|
if test "${newlib_wide_orient}" = "yes"; then
|
|
AC_DEFINE(_WIDE_ORIENT, 1, [Define if wide char orientation is supported.])
|
|
fi
|
|
|
|
if test "${newlib_nano_malloc}" = "yes"; then
|
|
AC_DEFINE(_NANO_MALLOC, 1, [nano version of malloc is used.])
|
|
fi
|
|
|
|
if test "${newlib_unbuf_stream_opt}" = "yes"; then
|
|
AC_DEFINE(_UNBUF_STREAM_OPT, 1, [Define if unbuffered stream file optimization is supported.])
|
|
fi
|
|
|
|
if test "${lite_exit}" = "yes"; then
|
|
AC_DEFINE(_LITE_EXIT, 1, [Define if lite version of exit supported.])
|
|
fi
|
|
|
|
if test "${newlib_nano_formatted_io}" = "yes"; then
|
|
AC_DEFINE(_NANO_FORMATTED_IO, 1, [Define if small footprint nano-formatted-IO implementation used.])
|
|
fi
|
|
|
|
if test "${newlib_retargetable_locking}" = "yes"; then
|
|
AC_DEFINE(_RETARGETABLE_LOCKING, 1, [Define if using retargetable functions for default lock routines.])
|
|
fi
|
|
|
|
if test "${newlib_long_time_t}" = "yes"; then
|
|
AC_DEFINE(_WANT_USE_LONG_TIME_T, 1, [Define to use type long for time_t.])
|
|
fi
|
|
|
|
if test "${newlib_use_gdtoa}" = "yes"; then
|
|
AC_DEFINE(_WANT_USE_GDTOA, 1, [Define if using gdtoa rather than legacy ldtoa.])
|
|
fi
|
|
|
|
dnl
|
|
dnl Parse --enable-newlib-iconv-encodings option argument
|
|
dnl
|
|
|
|
if test "x${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/'`
|
|
eval "$opt=1"
|
|
opt=_ICONV_FROM_ENCODING_`echo "${encoding}" | sed -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'`
|
|
eval "$opt=1"
|
|
done
|
|
|
|
dnl iconv_to_encodings
|
|
iconv_encodings1="${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/'`
|
|
eval "$opt=1"
|
|
done
|
|
|
|
dnl iconv_from_encodings
|
|
iconv_encodings1="${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/'`
|
|
eval "$opt=1"
|
|
done
|
|
fi;
|
|
NEWLIB_ICONV_DEFINES
|
|
|
|
AC_CACHE_CHECK(for .preinit_array/.init_array/.fini_array support,
|
|
newlib_cv_initfinit_array, [dnl
|
|
cat > conftest.c <<EOF
|
|
int _start (void) { return 0; }
|
|
int __start (void) { return 0; }
|
|
int foo (void) { return 1; }
|
|
int (*fp) (void) __attribute__ ((section (".init_array"))) = foo;
|
|
EOF
|
|
if AC_TRY_COMMAND([${CC} $CFLAGS $CPPFLAGS -c -o conftest conftest.c
|
|
1>&AS_MESSAGE_LOG_FD])
|
|
then
|
|
if ${READELF} -S conftest | grep -e INIT_ARRAY > /dev/null; then
|
|
newlib_cv_initfinit_array=yes
|
|
else
|
|
newlib_cv_initfinit_array=no
|
|
fi
|
|
else
|
|
newlib_cv_initfinit_array=no
|
|
fi
|
|
rm -f conftest*])
|
|
if test $newlib_cv_initfinit_array = yes; then
|
|
AC_DEFINE(_HAVE_INITFINI_ARRAY, 1, [Define if the linker supports .preinit_array/.init_array/.fini_array sections.])
|
|
fi
|
|
|
|
AC_CACHE_CHECK(if $CC accepts -fno-tree-loop-distribute-patterns with \
|
|
__attribute__ ((__optimize__)), newlib_cv_cc_loop_to_function, [dnl
|
|
cat > conftest.c <<EOF
|
|
void
|
|
__attribute__ ((__optimize__ ("-fno-tree-loop-distribute-patterns")))
|
|
foo (void) {}
|
|
EOF
|
|
newlib_cv_cc_loop_to_function=no
|
|
if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS -c
|
|
-fno-tree-loop-distribute-patterns conftest.c])
|
|
then
|
|
newlib_cv_cc_loop_to_function=yes
|
|
fi
|
|
rm -f conftest*])
|
|
if test $newlib_cv_cc_loop_to_function = yes; then
|
|
AC_DEFINE(_HAVE_CC_INHIBIT_LOOP_TO_LIBCALL, 1, [Define if compiler supports -fno-tree-loop-distribute-patterns.])
|
|
fi
|
|
|
|
AC_TYPE_LONG_DOUBLE
|
|
dnl Export the setting for our installed headers to check.
|
|
if test $ac_cv_type_long_double = yes; then
|
|
AC_DEFINE(_HAVE_LONG_DOUBLE, 1, [Define if the platform supports long double type.])
|
|
fi
|
|
AM_CONDITIONAL(HAVE_LONG_DOUBLE, test x"$ac_cv_type_long_double" = x"yes")
|
|
|
|
AC_CACHE_CHECK(whether long double equals double,
|
|
newlib_cv_ldbl_eq_dbl, [dnl
|
|
cat > conftest.c <<EOF
|
|
#include <float.h>
|
|
#if DBL_MANT_DIG == LDBL_MANT_DIG && LDBL_MIN_EXP == DBL_MIN_EXP && \
|
|
LDBL_MAX_EXP == DBL_MAX_EXP
|
|
#define _LDBL_EQ_DBL
|
|
#else
|
|
#error "LDBL != DBL"
|
|
#endif
|
|
EOF
|
|
if AC_TRY_COMMAND([${CC} $CFLAGS $CPPFLAGS -c -o conftest.o conftest.c
|
|
1>&AS_MESSAGE_LOG_FD])
|
|
then
|
|
newlib_cv_ldbl_eq_dbl=yes;
|
|
else
|
|
newlib_cv_ldbl_eq_dbl=no;
|
|
fi
|
|
rm -f conftest*])
|
|
if test $newlib_cv_ldbl_eq_dbl = yes; then
|
|
AC_DEFINE(_LDBL_EQ_DBL, 1, [Define if the platform long double type is equal to double.])
|
|
fi
|
|
|
|
AC_CONFIG_FILES([Makefile])
|
|
AC_OUTPUT
|