| /* System definitions for code taken from the GNU C Library |
| |
| Copyright 2017-2019 Free Software Foundation, Inc. |
| |
| This program is free software; you can redistribute it and/or |
| modify it under the terms of the GNU General Public |
| License as published by the Free Software Foundation; either |
| version 3 of the License, or (at your option) any later version. |
| |
| This program 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 |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public |
| License along with this program; if not, see |
| <https://www.gnu.org/licenses/>. */ |
| |
| /* Written by Paul Eggert. */ |
| |
| /* This is intended to be a good-enough substitute for glibc system |
| macros like those defined in <sys/cdefs.h>, so that Gnulib code |
| shared with glibc can do this as the first #include: |
| |
| #ifndef _LIBC |
| # include <libc-config.h> |
| #endif |
| |
| When compiled as part of glibc this is a no-op; when compiled as |
| part of Gnulib this includes Gnulib's <config.h> and defines macros |
| that glibc library code would normally assume. */ |
| |
| #include <config.h> |
| |
| /* On glibc this includes <features.h> and <sys/cdefs.h> and #defines |
| _FEATURES_H, __WORDSIZE, and __set_errno. On FreeBSD 11 it |
| includes <sys/cdefs.h> which defines __nonnull. Elsewhere it |
| is harmless. */ |
| #include <errno.h> |
| |
| /* From glibc <errno.h>. */ |
| #ifndef __set_errno |
| # define __set_errno(val) (errno = (val)) |
| #endif |
| |
| /* From glibc <features.h>. */ |
| |
| #ifndef __GNUC_PREREQ |
| # if defined __GNUC__ && defined __GNUC_MINOR__ |
| # define __GNUC_PREREQ(maj, min) ((maj) < __GNUC__ + ((min) <= __GNUC_MINOR__)) |
| # else |
| # define __GNUC_PREREQ(maj, min) 0 |
| # endif |
| #endif |
| |
| #ifndef __glibc_clang_prereq |
| # if defined __clang_major__ && defined __clang_minor__ |
| # define __glibc_clang_prereq(maj, min) \ |
| ((maj) < __clang_major__ + ((min) <= __clang_minor__)) |
| # else |
| # define __glibc_clang_prereq(maj, min) 0 |
| # endif |
| #endif |
| |
| |
| /* Prepare to include <cdefs.h>, which is our copy of glibc |
| <sys/cdefs.h>. */ |
| |
| /* Define _FEATURES_H so that <cdefs.h> does not include <features.h>. */ |
| #ifndef _FEATURES_H |
| # define _FEATURES_H 1 |
| #endif |
| /* Define __WORDSIZE so that <cdefs.h> does not attempt to include |
| nonexistent files. Make it a syntax error, since Gnulib does not |
| use __WORDSIZE now, and if Gnulib uses it later the syntax error |
| will let us know that __WORDSIZE needs configuring. */ |
| #ifndef __WORDSIZE |
| # define __WORDSIZE %%% |
| #endif |
| /* Undef the macros unconditionally defined by our copy of glibc |
| <sys/cdefs.h>, so that they do not clash with any system-defined |
| versions. */ |
| #undef _SYS_CDEFS_H |
| #undef __ASMNAME |
| #undef __ASMNAME2 |
| #undef __BEGIN_DECLS |
| #undef __CONCAT |
| #undef __END_DECLS |
| #undef __HAVE_GENERIC_SELECTION |
| #undef __LDBL_COMPAT |
| #undef __LDBL_REDIR |
| #undef __LDBL_REDIR1 |
| #undef __LDBL_REDIR1_DECL |
| #undef __LDBL_REDIR1_NTH |
| #undef __LDBL_REDIR_DECL |
| #undef __LDBL_REDIR_NTH |
| #undef __LEAF |
| #undef __LEAF_ATTR |
| #undef __NTH |
| #undef __NTHNL |
| #undef __P |
| #undef __PMT |
| #undef __REDIRECT |
| #undef __REDIRECT_LDBL |
| #undef __REDIRECT_NTH |
| #undef __REDIRECT_NTHNL |
| #undef __REDIRECT_NTH_LDBL |
| #undef __STRING |
| #undef __THROW |
| #undef __THROWNL |
| #undef __always_inline |
| #undef __attribute__ |
| #undef __attribute_alloc_size__ |
| #undef __attribute_artificial__ |
| #undef __attribute_const__ |
| #undef __attribute_deprecated__ |
| #undef __attribute_deprecated_msg__ |
| #undef __attribute_format_arg__ |
| #undef __attribute_format_strfmon__ |
| #undef __attribute_malloc__ |
| #undef __attribute_noinline__ |
| #undef __attribute_nonstring__ |
| #undef __attribute_pure__ |
| #undef __attribute_used__ |
| #undef __attribute_warn_unused_result__ |
| #undef __bos |
| #undef __bos0 |
| #undef __errordecl |
| #undef __extension__ |
| #undef __extern_always_inline |
| #undef __extern_inline |
| #undef __flexarr |
| #undef __fortify_function |
| #undef __glibc_c99_flexarr_available |
| #undef __glibc_clang_has_extension |
| #undef __glibc_likely |
| #undef __glibc_macro_warning |
| #undef __glibc_macro_warning1 |
| #undef __glibc_unlikely |
| #undef __inline |
| #undef __ptr_t |
| #undef __restrict |
| #undef __restrict_arr |
| #undef __va_arg_pack |
| #undef __va_arg_pack_len |
| #undef __warnattr |
| #undef __warndecl |
| |
| /* Include our copy of glibc <sys/cdefs.h>. */ |
| #include <cdefs.h> |
| |
| /* <cdefs.h> __inline is too pessimistic for non-GCC. */ |
| #undef __inline |
| #ifndef HAVE___INLINE |
| # if 199901 <= __STDC_VERSION__ || defined inline |
| # define __inline inline |
| # else |
| # define __inline |
| # endif |
| #endif |
| |
| |
| /* A substitute for glibc <libc-symbols.h>, good enough for Gnulib. */ |
| #define attribute_hidden |
| #define libc_hidden_proto(name, ...) |
| #define libc_hidden_def(name) |
| #define libc_hidden_weak(name) |
| #define libc_hidden_ver(local, name) |
| #define strong_alias(name, aliasname) |
| #define weak_alias(name, aliasname) |
| |
| /* A substitute for glibc <shlib-compat.h>, good enough for Gnulib. */ |
| #define SHLIB_COMPAT(lib, introduced, obsoleted) 0 |
| #define versioned_symbol(lib, local, symbol, version) |