Update vendor (whatsapp)

2 files changed, 1158 insertions, 0 deletions

diff --git a/vendor/modernc.org/libc/limits/capi_linux_riscv64.go b/vendor/modernc.org/libc/limits/capi_linux_riscv64.go
new file mode 100644
index 00000000..0706f0d6
--- /dev/null
+++ b/vendor/modernc.org/libc/limits/capi_linux_riscv64.go
@@ -0,0 +1,5 @@
+// Code generated by 'ccgo limits/gen.c -crt-import-path  -export-defines  -export-enums  -export-externs X -export-fields F -export-structs  -export-typedefs  -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o limits/limits_linux_riscv64.go -pkgname limits', DO NOT EDIT.
+
+package limits
+
+var CAPI = map[string]struct{}{}
diff --git a/vendor/modernc.org/libc/limits/limits_linux_riscv64.go b/vendor/modernc.org/libc/limits/limits_linux_riscv64.go
new file mode 100644
index 00000000..2a46b72f
--- /dev/null
+++ b/vendor/modernc.org/libc/limits/limits_linux_riscv64.go
@@ -0,0 +1,1153 @@
+// Code generated by 'ccgo limits/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o limits/limits_linux_riscv64.go -pkgname limits', DO NOT EDIT.
+
+package limits
+
+import (
+	"math"
+	"reflect"
+	"sync/atomic"
+	"unsafe"
+)
+
+var _ = math.Pi
+var _ reflect.Kind
+var _ atomic.Value
+var _ unsafe.Pointer
+
+const (
+	AIO_PRIO_DELTA_MAX                   = 20
+	BC_BASE_MAX                          = 99
+	BC_DIM_MAX                           = 2048
+	BC_SCALE_MAX                         = 99
+	BC_STRING_MAX                        = 1000
+	CHARCLASS_NAME_MAX                   = 2048
+	CHAR_BIT                             = 8
+	CHAR_MAX                             = 255
+	CHAR_MIN                             = 0
+	COLL_WEIGHTS_MAX                     = 255
+	DELAYTIMER_MAX                       = 2147483647
+	EXPR_NEST_MAX                        = 32
+	HOST_NAME_MAX                        = 64
+	INT_MAX                              = 2147483647
+	INT_MIN                              = -2147483648
+	LINE_MAX                             = 2048
+	LLONG_MAX                            = 9223372036854775807
+	LLONG_MIN                            = -9223372036854775808
+	LOGIN_NAME_MAX                       = 256
+	LONG_MAX                             = 9223372036854775807
+	LONG_MIN                             = -9223372036854775808
+	MAX_CANON                            = 255
+	MAX_INPUT                            = 255
+	MB_LEN_MAX                           = 16
+	MQ_PRIO_MAX                          = 32768
+	NAME_MAX                             = 255
+	NGROUPS_MAX                          = 65536
+	PATH_MAX                             = 4096
+	PIPE_BUF                             = 4096
+	PTHREAD_DESTRUCTOR_ITERATIONS        = 4
+	PTHREAD_KEYS_MAX                     = 1024
+	PTHREAD_STACK_MIN                    = 16384
+	RE_DUP_MAX                           = 32767
+	RTSIG_MAX                            = 32
+	SCHAR_MAX                            = 127
+	SCHAR_MIN                            = -128
+	SEM_VALUE_MAX                        = 2147483647
+	SHRT_MAX                             = 32767
+	SHRT_MIN                             = -32768
+	SSIZE_MAX                            = 9223372036854775807
+	TTY_NAME_MAX                         = 32
+	UCHAR_MAX                            = 255
+	UINT_MAX                             = 4294967295
+	ULLONG_MAX                           = 18446744073709551615
+	ULONG_MAX                            = 18446744073709551615
+	USHRT_MAX                            = 65535
+	XATTR_LIST_MAX                       = 65536
+	XATTR_NAME_MAX                       = 255
+	XATTR_SIZE_MAX                       = 65536
+	X_ATFILE_SOURCE                      = 1
+	X_BITS_POSIX1_LIM_H                  = 1
+	X_BITS_POSIX2_LIM_H                  = 1
+	X_DEFAULT_SOURCE                     = 1
+	X_FEATURES_H                         = 1
+	X_FILE_OFFSET_BITS                   = 64
+	X_GCC_LIMITS_H_                      = 0
+	X_LIBC_LIMITS_H_                     = 1
+	X_LIMITS_H___                        = 0
+	X_LINUX_LIMITS_H                     = 0
+	X_LP64                               = 1
+	X_POSIX2_BC_BASE_MAX                 = 99
+	X_POSIX2_BC_DIM_MAX                  = 2048
+	X_POSIX2_BC_SCALE_MAX                = 99
+	X_POSIX2_BC_STRING_MAX               = 1000
+	X_POSIX2_CHARCLASS_NAME_MAX          = 14
+	X_POSIX2_COLL_WEIGHTS_MAX            = 2
+	X_POSIX2_EXPR_NEST_MAX               = 32
+	X_POSIX2_LINE_MAX                    = 2048
+	X_POSIX2_RE_DUP_MAX                  = 255
+	X_POSIX_AIO_LISTIO_MAX               = 2
+	X_POSIX_AIO_MAX                      = 1
+	X_POSIX_ARG_MAX                      = 4096
+	X_POSIX_CHILD_MAX                    = 25
+	X_POSIX_CLOCKRES_MIN                 = 20000000
+	X_POSIX_C_SOURCE                     = 200809
+	X_POSIX_DELAYTIMER_MAX               = 32
+	X_POSIX_HOST_NAME_MAX                = 255
+	X_POSIX_LINK_MAX                     = 8
+	X_POSIX_LOGIN_NAME_MAX               = 9
+	X_POSIX_MAX_CANON                    = 255
+	X_POSIX_MAX_INPUT                    = 255
+	X_POSIX_MQ_OPEN_MAX                  = 8
+	X_POSIX_MQ_PRIO_MAX                  = 32
+	X_POSIX_NAME_MAX                     = 14
+	X_POSIX_NGROUPS_MAX                  = 8
+	X_POSIX_OPEN_MAX                     = 20
+	X_POSIX_PATH_MAX                     = 256
+	X_POSIX_PIPE_BUF                     = 512
+	X_POSIX_RE_DUP_MAX                   = 255
+	X_POSIX_RTSIG_MAX                    = 8
+	X_POSIX_SEM_NSEMS_MAX                = 256
+	X_POSIX_SEM_VALUE_MAX                = 32767
+	X_POSIX_SIGQUEUE_MAX                 = 32
+	X_POSIX_SOURCE                       = 1
+	X_POSIX_SSIZE_MAX                    = 32767
+	X_POSIX_STREAM_MAX                   = 8
+	X_POSIX_SYMLINK_MAX                  = 255
+	X_POSIX_SYMLOOP_MAX                  = 8
+	X_POSIX_THREAD_DESTRUCTOR_ITERATIONS = 4
+	X_POSIX_THREAD_KEYS_MAX              = 128
+	X_POSIX_THREAD_THREADS_MAX           = 64
+	X_POSIX_TIMER_MAX                    = 32
+	X_POSIX_TTY_NAME_MAX                 = 9
+	X_POSIX_TZNAME_MAX                   = 6
+	X_STDC_PREDEF_H                      = 1
+	X_SYS_CDEFS_H                        = 1
+	Linux                                = 1
+	Unix                                 = 1
+)
+
+type Ptrdiff_t = int64 /* <builtin>:3:26 */
+
+type Size_t = uint64 /* <builtin>:9:23 */
+
+type Wchar_t = int32 /* <builtin>:15:24 */
+
+type X__int128_t = struct {
+	Flo int64
+	Fhi int64
+} /* <builtin>:21:43 */ // must match modernc.org/mathutil.Int128
+type X__uint128_t = struct {
+	Flo uint64
+	Fhi uint64
+} /* <builtin>:22:44 */ // must match modernc.org/mathutil.Int128
+
+type X__builtin_va_list = uintptr /* <builtin>:46:14 */
+type X__float128 = float64        /* <builtin>:47:21 */
+
+// Copyright (C) 1992-2021 Free Software Foundation, Inc.
+//
+// This file is part of GCC.
+//
+// GCC 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, or (at your option) any later
+// version.
+//
+// GCC 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.
+//
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+//
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+// <http://www.gnu.org/licenses/>.
+
+// This administrivia gets added to the beginning of limits.h
+//    if the system has its own version of limits.h.
+
+// We use _GCC_LIMITS_H_ because we want this not to match
+//    any macros that the system's limits.h uses for its own purposes.
+
+// Use "..." so that we find syslimits.h only in this same directory.
+// syslimits.h stands for the system's own limits.h file.
+//    If we can use it ok unmodified, then we install this text.
+//    If fixincludes fixes it, then the fixed version is installed
+//    instead of this text.
+
+// Copyright (C) 1991-2021 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
+//    <https://www.gnu.org/licenses/>.
+
+//	ISO C99 Standard: 7.10/5.2.4.2.1 Sizes of integer types	<limits.h>
+
+// Handle feature test macros at the start of a header.
+//    Copyright (C) 2016-2021 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
+//    <https://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.
+
+// Copyright (C) 1991-2021 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
+//    <https://www.gnu.org/licenses/>.
+
+// These are defined by the user (or the compiler)
+//    to specify the desired environment:
+//
+//    __STRICT_ANSI__	ISO Standard C.
+//    _ISOC99_SOURCE	Extensions to ISO C89 from ISO C99.
+//    _ISOC11_SOURCE	Extensions to ISO C99 from ISO C11.
+//    _ISOC2X_SOURCE	Extensions to ISO C99 from ISO C2X.
+//    __STDC_WANT_LIB_EXT2__
+// 			Extensions to ISO C99 from TR 27431-2:2010.
+//    __STDC_WANT_IEC_60559_BFP_EXT__
+// 			Extensions to ISO C11 from TS 18661-1:2014.
+//    __STDC_WANT_IEC_60559_FUNCS_EXT__
+// 			Extensions to ISO C11 from TS 18661-4:2015.
+//    __STDC_WANT_IEC_60559_TYPES_EXT__
+// 			Extensions to ISO C11 from TS 18661-3:2015.
+//    __STDC_WANT_IEC_60559_EXT__
+// 			ISO C2X interfaces defined only in Annex F.
+//
+//    _POSIX_SOURCE	IEEE Std 1003.1.
+//    _POSIX_C_SOURCE	If ==1, like _POSIX_SOURCE; if >=2 add IEEE Std 1003.2;
+// 			if >=199309L, add IEEE Std 1003.1b-1993;
+// 			if >=199506L, add IEEE Std 1003.1c-1995;
+// 			if >=200112L, all of IEEE 1003.1-2004
+// 			if >=200809L, all of IEEE 1003.1-2008
+//    _XOPEN_SOURCE	Includes POSIX and XPG things.  Set to 500 if
+// 			Single Unix conformance is wanted, to 600 for the
+// 			sixth revision, to 700 for the seventh revision.
+//    _XOPEN_SOURCE_EXTENDED XPG things and X/Open Unix extensions.
+//    _LARGEFILE_SOURCE	Some more functions for correct standard I/O.
+//    _LARGEFILE64_SOURCE	Additional functionality from LFS for large files.
+//    _FILE_OFFSET_BITS=N	Select default filesystem interface.
+//    _ATFILE_SOURCE	Additional *at interfaces.
+//    _DYNAMIC_STACK_SIZE_SOURCE Select correct (but non compile-time constant)
+// 			MINSIGSTKSZ, SIGSTKSZ and PTHREAD_STACK_MIN.
+//    _GNU_SOURCE		All of the above, plus GNU extensions.
+//    _DEFAULT_SOURCE	The default set of features (taking precedence over
+// 			__STRICT_ANSI__).
+//
+//    _FORTIFY_SOURCE	Add security hardening to many library functions.
+// 			Set to 1 or 2; 2 performs stricter checks than 1.
+//
+//    _REENTRANT, _THREAD_SAFE
+// 			Obsolete; equivalent to _POSIX_C_SOURCE=199506L.
+//
+//    The `-ansi' switch to the GNU C compiler, and standards conformance
+//    options such as `-std=c99', define __STRICT_ANSI__.  If none of
+//    these are defined, or if _DEFAULT_SOURCE is defined, the default is
+//    to have _POSIX_SOURCE set to one and _POSIX_C_SOURCE set to
+//    200809L, as well as enabling miscellaneous functions from BSD and
+//    SVID.  If more than one of these are defined, they accumulate.  For
+//    example __STRICT_ANSI__, _POSIX_SOURCE and _POSIX_C_SOURCE together
+//    give you ISO C, 1003.1, and 1003.2, but nothing else.
+//
+//    These are defined by this file and are used by the
+//    header files to decide what to declare or define:
+//
+//    __GLIBC_USE (F)	Define things from feature set F.  This is defined
+// 			to 1 or 0; the subsequent macros are either defined
+// 			or undefined, and those tests should be moved to
+// 			__GLIBC_USE.
+//    __USE_ISOC11		Define ISO C11 things.
+//    __USE_ISOC99		Define ISO C99 things.
+//    __USE_ISOC95		Define ISO C90 AMD1 (C95) things.
+//    __USE_ISOCXX11	Define ISO C++11 things.
+//    __USE_POSIX		Define IEEE Std 1003.1 things.
+//    __USE_POSIX2		Define IEEE Std 1003.2 things.
+//    __USE_POSIX199309	Define IEEE Std 1003.1, and .1b things.
+//    __USE_POSIX199506	Define IEEE Std 1003.1, .1b, .1c and .1i things.
+//    __USE_XOPEN		Define XPG things.
+//    __USE_XOPEN_EXTENDED	Define X/Open Unix things.
+//    __USE_UNIX98		Define Single Unix V2 things.
+//    __USE_XOPEN2K        Define XPG6 things.
+//    __USE_XOPEN2KXSI     Define XPG6 XSI things.
+//    __USE_XOPEN2K8       Define XPG7 things.
+//    __USE_XOPEN2K8XSI    Define XPG7 XSI things.
+//    __USE_LARGEFILE	Define correct standard I/O things.
+//    __USE_LARGEFILE64	Define LFS things with separate names.
+//    __USE_FILE_OFFSET64	Define 64bit interface as default.
+//    __USE_MISC		Define things from 4.3BSD or System V Unix.
+//    __USE_ATFILE		Define *at interfaces and AT_* constants for them.
+//    __USE_DYNAMIC_STACK_SIZE Define correct (but non compile-time constant)
+// 			MINSIGSTKSZ, SIGSTKSZ and PTHREAD_STACK_MIN.
+//    __USE_GNU		Define GNU extensions.
+//    __USE_FORTIFY_LEVEL	Additional security measures used, according to level.
+//
+//    The macros `__GNU_LIBRARY__', `__GLIBC__', and `__GLIBC_MINOR__' are
+//    defined by this file unconditionally.  `__GNU_LIBRARY__' is provided
+//    only for compatibility.  All new code should use the other symbols
+//    to test for features.
+//
+//    All macros listed above as possibly being defined by this file are
+//    explicitly undefined if they are not explicitly defined.
+//    Feature-test macros that are not defined by the user or compiler
+//    but are implied by the other feature-test macros defined (or by the
+//    lack of any definitions) are defined by the file.
+//
+//    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, and so they are handled in
+//    <bits/libc-header-start.h>, which does not have a multiple include
+//    guard.  Feature test macros that can be handled from the first
+//    system header included are handled here.
+
+// Undefine everything, so we get a clean slate.
+
+// Suppress kernel-name space pollution unless user expressedly asks
+//    for it.
+
+// Convenience macro to test the version of gcc.
+//    Use like this:
+//    #if __GNUC_PREREQ (2,8)
+//    ... code requiring gcc 2.8 or later ...
+//    #endif
+//    Note: only works for GCC 2.0 and later, because __GNUC_MINOR__ was
+//    added in 2.0.
+
+// Similarly for clang.  Features added to GCC after version 4.2 may
+//    or may not also be available in clang, and clang's definitions of
+//    __GNUC(_MINOR)__ are fixed at 4 and 2 respectively.  Not all such
+//    features can be queried via __has_extension/__has_feature.
+
+// Whether to use feature set F.
+
+// _BSD_SOURCE and _SVID_SOURCE are deprecated aliases for
+//    _DEFAULT_SOURCE.  If _DEFAULT_SOURCE is present we do not
+//    issue a warning; the expectation is that the source is being
+//    transitioned to use the new macro.
+
+// If _GNU_SOURCE was defined by the user, turn on all the other features.
+
+// If nothing (other than _GNU_SOURCE and _DEFAULT_SOURCE) is defined,
+//    define _DEFAULT_SOURCE.
+
+// This is to enable the ISO C2X extension.
+
+// This is to enable the ISO C11 extension.
+
+// This is to enable the ISO C99 extension.
+
+// This is to enable the ISO C90 Amendment 1:1995 extension.
+
+// If none of the ANSI/POSIX macros are defined, or if _DEFAULT_SOURCE
+//    is defined, use POSIX.1-2008 (or another version depending on
+//    _XOPEN_SOURCE).
+
+// Some C libraries once required _REENTRANT and/or _THREAD_SAFE to be
+//    defined in all multithreaded code.  GNU libc has not required this
+//    for many years.  We now treat them as compatibility synonyms for
+//    _POSIX_C_SOURCE=199506L, which is the earliest level of POSIX with
+//    comprehensive support for multithreaded code.  Using them never
+//    lowers the selected level of POSIX conformance, only raises it.
+
+// Features part to handle 64-bit time_t support.
+//    Copyright (C) 2021 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
+//    <https://www.gnu.org/licenses/>.
+
+// We need to know the word size in order to check the time size.
+// Determine the wordsize from the preprocessor defines.  RISC-V version.
+//    Copyright (C) 2002-2021 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
+//    <https://www.gnu.org/licenses/>.
+
+// Bit size of the time_t type at glibc build time, RISC-V case.
+//    Copyright (C) 2020-2021 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
+//    <https://www.gnu.org/licenses/>.
+
+// Determine the wordsize from the preprocessor defines.  RISC-V version.
+//    Copyright (C) 2002-2021 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
+//    <https://www.gnu.org/licenses/>.
+
+// RV32 and RV64 both use 64-bit time_t
+
+// The function 'gets' existed in C89, but is impossible to use
+//    safely.  It has been removed from ISO C11 and ISO C++14.  Note: for
+//    compatibility with various implementations of <cstdio>, this test
+//    must consider only the value of __cplusplus when compiling C++.
+
+// GNU formerly extended the scanf functions with modified format
+//    specifiers %as, %aS, and %a[...] that allocate a buffer for the
+//    input using malloc.  This extension conflicts with ISO C99, which
+//    defines %a as a standalone format specifier that reads a floating-
+//    point number; moreover, POSIX.1-2008 provides the same feature
+//    using the modifier letter 'm' instead (%ms, %mS, %m[...]).
+//
+//    We now follow C99 unless GNU extensions are active and the compiler
+//    is specifically in C89 or C++98 mode (strict or not).  For
+//    instance, with GCC, -std=gnu11 will have C99-compliant scanf with
+//    or without -D_GNU_SOURCE, but -std=c89 -D_GNU_SOURCE will have the
+//    old extension.
+
+// Get definitions of __STDC_* predefined macros, if the compiler has
+//    not preincluded this header automatically.
+// Copyright (C) 1991-2021 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
+//    <https://www.gnu.org/licenses/>.
+
+// This macro indicates that the installed library is the GNU C Library.
+//    For historic reasons the value now is 6 and this will stay from now
+//    on.  The use of this variable is deprecated.  Use __GLIBC__ and
+//    __GLIBC_MINOR__ now (see below) when you want to test for a specific
+//    GNU C library version and use the values in <gnu/lib-names.h> to get
+//    the sonames of the shared libraries.
+
+// Major and minor version number of the GNU C library package.  Use
+//    these macros to test for features in specific releases.
+
+// This is here only because every header file already includes this one.
+// Copyright (C) 1992-2021 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
+//    <https://www.gnu.org/licenses/>.
+
+// We are almost always included from features.h.
+
+// The GNU libc does not support any K&R compilers or the traditional mode
+//    of ISO C compilers anymore.  Check for some of the combinations not
+//    supported anymore.
+
+// Some user header file might have defined this before.
+
+// Compilers that lack __has_attribute may object to
+//        #if defined __has_attribute && __has_attribute (...)
+//    even though they do not need to evaluate the right-hand side of the &&.
+//    Similarly for __has_builtin, etc.
+
+// All functions, except those with callbacks or those that
+//    synchronize memory, are leaf functions.
+
+// GCC can always grok prototypes.  For C++ programs we add throw()
+//    to help it optimize the function calls.  But this only works with
+//    gcc 2.8.x and egcs.  For gcc 3.4 and up we even mark C functions
+//    as non-throwing using a function attribute since programs can use
+//    the -fexceptions options for C code as well.
+
+// These two macros are not used in glibc anymore.  They are kept here
+//    only because some other projects expect the macros to be defined.
+
+// For these things, GCC behaves the ANSI way normally,
+//    and the non-ANSI way under -traditional.
+
+// This is not a typedef so `const __ptr_t' does the right thing.
+
+// C++ needs to know that types and declarations are C, not C++.
+
+// Fortify support.
+
+// Use __builtin_dynamic_object_size at _FORTIFY_SOURCE=3 when available.
+
+// Support for flexible arrays.
+//    Headers that should use flexible arrays only if they're "real"
+//    (e.g. only if they won't affect sizeof()) should test
+//    #if __glibc_c99_flexarr_available.
+
+// __asm__ ("xyz") is used throughout the headers to rename functions
+//    at the assembly language level.  This is wrapped by the __REDIRECT
+//    macro, in order to support compilers that can do this some other
+//    way.  When compilers don't support asm-names at all, we have to do
+//    preprocessor tricks instead (which don't have exactly the right
+//    semantics, but it's the best we can do).
+//
+//    Example:
+//    int __REDIRECT(setpgrp, (__pid_t pid, __pid_t pgrp), setpgid);
+
+//
+// #elif __SOME_OTHER_COMPILER__
+//
+// # define __REDIRECT(name, proto, alias) name proto; 	_Pragma("let " #name " = " #alias)
+
+// GCC and clang have various useful declarations that can be made with
+//    the '__attribute__' syntax.  All of the ways we use this do fine if
+//    they are omitted for compilers that don't understand it.
+
+// At some point during the gcc 2.96 development the `malloc' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+
+// Tell the compiler which arguments to an allocation function
+//    indicate the size of the allocation.
+
+// At some point during the gcc 2.96 development the `pure' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+
+// This declaration tells the compiler that the value is constant.
+
+// At some point during the gcc 3.1 development the `used' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+
+// Since version 3.2, gcc allows marking deprecated functions.
+
+// Since version 4.5, gcc also allows one to specify the message printed
+//    when a deprecated function is used.  clang claims to be gcc 4.2, but
+//    may also support this feature.
+
+// At some point during the gcc 2.8 development the `format_arg' attribute
+//    for functions was introduced.  We don't want to use it unconditionally
+//    (although this would be possible) since it generates warnings.
+//    If several `format_arg' attributes are given for the same function, in
+//    gcc-3.0 and older, all but the last one are ignored.  In newer gccs,
+//    all designated arguments are considered.
+
+// At some point during the gcc 2.97 development the `strfmon' format
+//    attribute for functions was introduced.  We don't want to use it
+//    unconditionally (although this would be possible) since it
+//    generates warnings.
+
+// The nonnull function attribute marks pointer parameters that
+//    must not be NULL.
+
+// The returns_nonnull function attribute marks the return type of the function
+//    as always being non-null.
+
+// If fortification mode, we warn about unused results of certain
+//    function calls which can lead to problems.
+
+// Forces a function to be always inlined.
+// The Linux kernel defines __always_inline in stddef.h (283d7573), and
+//    it conflicts with this definition.  Therefore undefine it first to
+//    allow either header to be included first.
+
+// Associate error messages with the source location of the call site rather
+//    than with the source location inside the function.
+
+// GCC 4.3 and above with -std=c99 or -std=gnu99 implements ISO C99
+//    inline semantics, unless -fgnu89-inline is used.  Using __GNUC_STDC_INLINE__
+//    or __GNUC_GNU_INLINE is not a good enough check for gcc because gcc versions
+//    older than 4.3 may define these macros and still not guarantee GNU inlining
+//    semantics.
+//
+//    clang++ identifies itself as gcc-4.2, but has support for GNU inlining
+//    semantics, that can be checked for by using the __GNUC_STDC_INLINE_ and
+//    __GNUC_GNU_INLINE__ macro definitions.
+
+// GCC 4.3 and above allow passing all anonymous arguments of an
+//    __extern_always_inline function to some other vararg function.
+
+// It is possible to compile containing GCC extensions even if GCC is
+//    run in pedantic mode if the uses are carefully marked using the
+//    `__extension__' keyword.  But this is not generally available before
+//    version 2.8.
+
+// __restrict is known in EGCS 1.2 and above, and in clang.
+//    It works also in C++ mode (outside of arrays), but only when spelled
+//    as '__restrict', not 'restrict'.
+
+// ISO C99 also allows to declare arrays as non-overlapping.  The syntax is
+//      array_name[restrict]
+//    GCC 3.1 and clang support this.
+//    This syntax is not usable in C++ mode.
+
+// Describes a char array whose address can safely be passed as the first
+//    argument to strncpy and strncat, as the char array is not necessarily
+//    a NUL-terminated string.
+
+// Undefine (also defined in libc-symbols.h).
+// Copies attributes from the declaration or type referenced by
+//    the argument.
+
+// The #ifndef lets Gnulib avoid including these on non-glibc
+//    platforms, where the includes typically do not exist.
+// Determine the wordsize from the preprocessor defines.  RISC-V version.
+//    Copyright (C) 2002-2021 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
+//    <https://www.gnu.org/licenses/>.
+
+// Properties of long double type.  ldbl-128 version.
+//    Copyright (C) 2016-2021 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  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
+//    <https://www.gnu.org/licenses/>.
+
+// long double is distinct from double, so there is nothing to
+//    define here.
+
+// __glibc_macro_warning (MESSAGE) issues warning MESSAGE.  This is
+//    intended for use in preprocessor macros.
+//
+//    Note: MESSAGE must be a _single_ string; concatenation of string
+//    literals is not supported.
+
+// Generic selection (ISO C11) is a C-only feature, available in GCC
+//    since version 4.9.  Previous versions do not provide generic
+//    selection, even though they might set __STDC_VERSION__ to 201112L,
+//    when in -std=c11 mode.  Thus, we must check for !defined __GNUC__
+//    when testing __STDC_VERSION__ for generic selection support.
+//    On the other hand, Clang also defines __GNUC__, so a clang-specific
+//    check is required to enable the use of generic selection.
+
+// Designates a 1-based positional argument ref-index of pointer type
+//    that can be used to access size-index elements of the pointed-to
+//    array according to access mode, or at least one element when
+//    size-index is not provided:
+//      access (access-mode, <ref-index> [, <size-index>])
+
+// Designates dealloc as a function to call to deallocate objects
+//    allocated by the declared function.
+
+// Specify that a function such as setjmp or vfork may return
+//    twice.
+
+// If we don't have __REDIRECT, prototypes will be missing if
+//    __USE_FILE_OFFSET64 but not __USE_LARGEFILE[64].
+
+// Decide whether we can define 'extern inline' functions in headers.
+
+// This is here only because every header file already includes this one.
+//    Get the definitions of all the appropriate `__stub_FUNCTION' symbols.
+//    <gnu/stubs.h> contains `#define __stub_FUNCTION' when FUNCTION is a stub
+//    that will always return failure (and set errno to ENOSYS).
+// This file is automatically generated.
+//    This file selects the right generated file of `__stub_FUNCTION' macros
+//    based on the architecture being compiled for.
+
+// Determine the wordsize from the preprocessor defines.  RISC-V version.
+//    Copyright (C) 2002-2021 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
+//    <https://www.gnu.org/licenses/>.
+
+// This file is automatically generated.
+//    It defines a symbol `__stub_FUNCTION' for each function
+//    in the C library which is a stub, meaning it will fail
+//    every time called, usually setting errno to ENOSYS.
+
+// ISO/IEC TR 24731-2:2010 defines the __STDC_WANT_LIB_EXT2__
+//    macro.
+
+// ISO/IEC TS 18661-1:2014 defines the __STDC_WANT_IEC_60559_BFP_EXT__
+//    macro.  Most but not all symbols enabled by that macro in TS
+//    18661-1 are enabled unconditionally in C2X.  In C2X, the symbols in
+//    Annex F still require a new feature test macro
+//    __STDC_WANT_IEC_60559_EXT__ instead (C2X does not define
+//    __STDC_WANT_IEC_60559_BFP_EXT__), while a few features from TS
+//    18661-1 are not included in C2X (and thus should depend on
+//    __STDC_WANT_IEC_60559_BFP_EXT__ even when C2X features are
+//    enabled).
+//
+//    __GLIBC_USE (IEC_60559_BFP_EXT) controls those features from TS
+//    18661-1 not included in C2X.
+//
+//    __GLIBC_USE (IEC_60559_BFP_EXT_C2X) controls those features from TS
+//    18661-1 that are also included in C2X (with no feature test macro
+//    required in C2X).
+//
+//    __GLIBC_USE (IEC_60559_EXT) controls those features from TS 18661-1
+//    that are included in C2X but conditional on
+//    __STDC_WANT_IEC_60559_EXT__.  (There are currently no features
+//    conditional on __STDC_WANT_IEC_60559_EXT__ that are not in TS
+//    18661-1.)
+
+// ISO/IEC TS 18661-4:2015 defines the
+//    __STDC_WANT_IEC_60559_FUNCS_EXT__ macro.  Other than the reduction
+//    functions, the symbols from this TS are enabled unconditionally in
+//    C2X.
+
+// ISO/IEC TS 18661-3:2015 defines the
+//    __STDC_WANT_IEC_60559_TYPES_EXT__ macro.
+
+// Maximum length of any multibyte character in any locale.
+//    We define this value here since the gcc header does not define
+//    the correct value.
+
+// If we are not using GNU CC we have to define all the symbols ourself.
+//    Otherwise use gcc's definitions (see below).
+
+// Get the compiler's limits.h, which defines almost all the ISO constants.
+//
+//     We put this #include_next outside the double inclusion check because
+//     it should be possible to include this file more than once and still get
+//     the definitions from gcc's header.
+
+// The <limits.h> files in some gcc versions don't define LLONG_MIN,
+//    LLONG_MAX, and ULLONG_MAX.  Instead only the values gcc defined for
+//    ages are available.
+
+// The integer width macros are not defined by GCC's <limits.h> before
+//    GCC 7, or if _GNU_SOURCE rather than
+//    __STDC_WANT_IEC_60559_BFP_EXT__ is used to enable this feature.
+
+// The macros for _Bool are not defined by GCC's <limits.h> before GCC
+//    11, or if _GNU_SOURCE is defined rather than enabling C2x support
+//    with -std.
+
+// POSIX adds things to <limits.h>.
+// Copyright (C) 1991-2021 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
+//    <https://www.gnu.org/licenses/>.
+
+//	POSIX Standard: 2.9.2 Minimum Values	Added to <limits.h>
+//
+//	Never include this file directly; use <limits.h> instead.
+
+// Determine the wordsize from the preprocessor defines.  RISC-V version.
+//    Copyright (C) 2002-2021 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
+//    <https://www.gnu.org/licenses/>.
+
+// These are the standard-mandated minimum values.
+
+// Minimum number of operations in one list I/O call.
+
+// Minimal number of outstanding asynchronous I/O operations.
+
+// Maximum length of arguments to `execve', including environment.
+
+// Maximum simultaneous processes per real user ID.
+
+// Minimal number of timer expiration overruns.
+
+// Maximum length of a host name (not including the terminating null)
+//    as returned from the GETHOSTNAME function.
+
+// Maximum link count of a file.
+
+// Maximum length of login name.
+
+// Number of bytes in a terminal canonical input queue.
+
+// Number of bytes for which space will be
+//    available in a terminal input queue.
+
+// Maximum number of message queues open for a process.
+
+// Maximum number of supported message priorities.
+
+// Number of bytes in a filename.
+
+// Number of simultaneous supplementary group IDs per process.
+
+// Number of files one process can have open at once.
+
+// Number of bytes in a pathname.
+
+// Number of bytes than can be written atomically to a pipe.
+
+// The number of repeated occurrences of a BRE permitted by the
+//    REGEXEC and REGCOMP functions when using the interval notation.
+
+// Minimal number of realtime signals reserved for the application.
+
+// Number of semaphores a process can have.
+
+// Maximal value of a semaphore.
+
+// Number of pending realtime signals.
+
+// Largest value of a `ssize_t'.
+
+// Number of streams a process can have open at once.
+
+// The number of bytes in a symbolic link.
+
+// The number of symbolic links that can be traversed in the
+//    resolution of a pathname in the absence of a loop.
+
+// Number of timer for a process.
+
+// Maximum number of characters in a tty name.
+
+// Maximum length of a timezone name (element of `tzname').
+
+// Maximum clock resolution in nanoseconds.
+
+// Get the implementation-specific values for the above.
+// Minimum guaranteed maximum values for system limits.  Linux version.
+//    Copyright (C) 1993-2021 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; see the file COPYING.LIB.  If
+//    not, see <https://www.gnu.org/licenses/>.
+
+// The kernel header pollutes the namespace with the NR_OPEN symbol
+//    and defines LINK_MAX although filesystems have different maxima.  A
+//    similar thing is true for OPEN_MAX: the limit can be changed at
+//    runtime and therefore the macro must not be defined.  Remove this
+//    after including the header if necessary.
+
+// The kernel sources contain a file with all the needed information.
+// SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
+
+// Have to remove NR_OPEN?
+// Have to remove LINK_MAX?
+// Have to remove OPEN_MAX?
+// Have to remove ARG_MAX?
+
+// The number of data keys per process.
+// This is the value this implementation supports.
+
+// Controlling the iterations of destructors for thread-specific data.
+// Number of iterations this implementation does.
+
+// The number of threads per process.
+// We have no predefined limit on the number of threads.
+
+// Maximum amount by which a process can descrease its asynchronous I/O
+//    priority level.
+
+// Arrange for the definition of PTHREAD_STACK_MIN.
+// Definition of PTHREAD_STACK_MIN, possibly dynamic.
+//    Copyright (C) 2021 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
+//    <https://www.gnu.org/licenses/>.
+
+// Definition of PTHREAD_STACK_MIN.  Linux version.
+//    Copyright (C) 2021 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
+//    <https://www.gnu.org/licenses/>.
+
+// Minimum size for a thread.  We are free to choose a reasonable value.
+
+// Maximum number of timer expiration overruns.
+
+// Maximum tty name length.
+
+// Maximum login name length.  This is arbitrary.
+
+// Maximum host name length.
+
+// Maximum message queue priority level.
+
+// Maximum value the semaphore can have.
+
+// ssize_t is not formally required to be the signed type
+//    corresponding to size_t, but it is for all configurations supported
+//    by glibc.
+
+// This value is a guaranteed minimum maximum.
+//    The current maximum can be got from `sysconf'.
+
+// Copyright (C) 1991-2021 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
+//    <https://www.gnu.org/licenses/>.
+
+// Never include this file directly; include <limits.h> instead.
+
+// The maximum `ibase' and `obase' values allowed by the `bc' utility.
+
+// The maximum number of elements allowed in an array by the `bc' utility.
+
+// The maximum `scale' value allowed by the `bc' utility.
+
+// The maximum length of a string constant accepted by the `bc' utility.
+
+// The maximum number of weights that can be assigned to an entry of
+//    the LC_COLLATE `order' keyword in the locale definition file.
+
+// The maximum number of expressions that can be nested
+//    within parentheses by the `expr' utility.
+
+// The maximum length, in bytes, of an input line.
+
+// The maximum number of repeated occurrences of a regular expression
+//    permitted when using the interval notation `\{M,N\}'.
+
+// The maximum number of bytes in a character class name.  We have no
+//    fixed limit, 2048 is a high number.
+
+// These values are implementation-specific,
+//    and may vary within the implementation.
+//    Their precise values can be obtained from sysconf.
+
+// This value is defined like this in regex.h.
+
+// Copyright (C) 1991-2021 Free Software Foundation, Inc.
+//
+// This file is part of GCC.
+//
+// GCC 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, or (at your option) any later
+// version.
+//
+// GCC 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.
+//
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+//
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+// <http://www.gnu.org/licenses/>.
+
+// Number of bits in a `char'.
+
+// Maximum length of a multibyte character.
+
+// Minimum and maximum values a `signed char' can hold.
+
+// Maximum value an `unsigned char' can hold.  (Minimum is 0).
+
+// Minimum and maximum values a `char' can hold.
+
+// Minimum and maximum values a `signed short int' can hold.
+
+// Maximum value an `unsigned short int' can hold.  (Minimum is 0).
+
+// Minimum and maximum values a `signed int' can hold.
+
+// Maximum value an `unsigned int' can hold.  (Minimum is 0).
+
+// Minimum and maximum values a `signed long int' can hold.
+//    (Same as `int').
+
+// Maximum value an `unsigned long int' can hold.  (Minimum is 0).
+
+// Minimum and maximum values a `signed long long int' can hold.
+
+// Maximum value an `unsigned long long int' can hold.  (Minimum is 0).
+
+// This administrivia gets added to the end of limits.h
+//    if the system has its own version of limits.h.
+
+var _ uint8 /* gen.c:2:13: */