mirror of
git://sourceware.org/git/glibc.git
synced 2024-11-21 01:12:26 +08:00
688903eb3e
* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
71 lines
2.5 KiB
C
71 lines
2.5 KiB
C
/* Handle feature test macros at the start of a header.
|
|
Copyright (C) 2016-2018 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
/* This header is internal to glibc and should not be included outside
|
|
of glibc headers. Headers including it must define
|
|
__GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION first. This header
|
|
cannot have multiple include guards because ISO C feature test
|
|
macros depend on the definition of the macro when an affected
|
|
header is included, not when the first system header is
|
|
included. */
|
|
|
|
#ifndef __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION
|
|
# error "Never include <bits/libc-header-start.h> directly."
|
|
#endif
|
|
|
|
#undef __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION
|
|
|
|
#include <features.h>
|
|
|
|
/* ISO/IEC TR 24731-2:2010 defines the __STDC_WANT_LIB_EXT2__
|
|
macro. */
|
|
#undef __GLIBC_USE_LIB_EXT2
|
|
#if (defined __USE_GNU \
|
|
|| (defined __STDC_WANT_LIB_EXT2__ && __STDC_WANT_LIB_EXT2__ > 0))
|
|
# define __GLIBC_USE_LIB_EXT2 1
|
|
#else
|
|
# define __GLIBC_USE_LIB_EXT2 0
|
|
#endif
|
|
|
|
/* ISO/IEC TS 18661-1:2014 defines the __STDC_WANT_IEC_60559_BFP_EXT__
|
|
macro. */
|
|
#undef __GLIBC_USE_IEC_60559_BFP_EXT
|
|
#if defined __USE_GNU || defined __STDC_WANT_IEC_60559_BFP_EXT__
|
|
# define __GLIBC_USE_IEC_60559_BFP_EXT 1
|
|
#else
|
|
# define __GLIBC_USE_IEC_60559_BFP_EXT 0
|
|
#endif
|
|
|
|
/* ISO/IEC TS 18661-4:2015 defines the
|
|
__STDC_WANT_IEC_60559_FUNCS_EXT__ macro. */
|
|
#undef __GLIBC_USE_IEC_60559_FUNCS_EXT
|
|
#if defined __USE_GNU || defined __STDC_WANT_IEC_60559_FUNCS_EXT__
|
|
# define __GLIBC_USE_IEC_60559_FUNCS_EXT 1
|
|
#else
|
|
# define __GLIBC_USE_IEC_60559_FUNCS_EXT 0
|
|
#endif
|
|
|
|
/* ISO/IEC TS 18661-3:2015 defines the
|
|
__STDC_WANT_IEC_60559_TYPES_EXT__ macro. */
|
|
#undef __GLIBC_USE_IEC_60559_TYPES_EXT
|
|
#if defined __USE_GNU || defined __STDC_WANT_IEC_60559_TYPES_EXT__
|
|
# define __GLIBC_USE_IEC_60559_TYPES_EXT 1
|
|
#else
|
|
# define __GLIBC_USE_IEC_60559_TYPES_EXT 0
|
|
#endif
|