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author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2018-12-27 16:39:27 +0000 |
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committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2018-12-27 16:39:27 +0000 |
commit | 52629237a522c7c146d788ddaaf69946fd2729f9 (patch) | |
tree | 552402b085cff37bc251fc0f45ed9255b53cdd57 /bits/libc-header-start.h | |
parent | 3896c5809b49e72fbadc57da2189ff42aa2a5d02 (diff) | |
parent | 064374be911f72dfaec8a75f06da1f9fc1827712 (diff) |
Merge commit 'refs/top-bases/t/hurdsig-boot-fix' into t/hurdsig-boot-fix
Diffstat (limited to 'bits/libc-header-start.h')
-rw-r--r-- | bits/libc-header-start.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/bits/libc-header-start.h b/bits/libc-header-start.h new file mode 100644 index 0000000000..b4a429b83c --- /dev/null +++ b/bits/libc-header-start.h @@ -0,0 +1,70 @@ +/* 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 |