diff options
| author | Colin Watson <cjwatson@debian.org> | 2022-02-04 15:11:47 +0000 |
|---|---|---|
| committer | Colin Watson <cjwatson@debian.org> | 2022-02-04 15:11:47 +0000 |
| commit | 828b489c68a5a022c106656cfdff19bb9b584eec (patch) | |
| tree | 7225919cd6e445d94080fa108a1a6b05fb890cf7 /config.h.in | |
| parent | a2d4ffce13a855f29a63bac2099ebe0f5a4e50bd (diff) | |
| parent | bfe34108bc20e9d75e3f08bfc8305e4f4cd632a9 (diff) | |
Import man-db_2.10.0.orig.tar.xz
Diffstat (limited to 'config.h.in')
| -rw-r--r-- | config.h.in | 867 |
1 files changed, 650 insertions, 217 deletions
diff --git a/config.h.in b/config.h.in index 7ce0bdff..e450f5b5 100644 --- a/config.h.in +++ b/config.h.in @@ -37,15 +37,13 @@ /* Define to 1 if chown mishandles trailing slash. */ #undef CHOWN_TRAILING_SLASH_BUG +/* Default compression extension, used for compressing cat pages. */ +#undef COMPRESS_EXT + /* Define if you have compressors and want to support compressed cat files. */ #undef COMP_CAT -/* Define to one of `_getb67', `GETB67', `getb67' for Cray-2 and Cray-YMP - systems. This function is required for `alloca.c' support on those systems. - */ -#undef CRAY_STACKSEG_END - -/* Define to 1 if using `alloca.c'. */ +/* Define to 1 if using 'alloca.c'. */ #undef C_ALLOCA /* Define as the bit index in the word where to find bit 0 of the exponent of @@ -93,7 +91,11 @@ #undef FUNC_NL_LANGINFO_YESEXPR_WORKS /* Define to 1 if realpath() can malloc memory, always gives an absolute path, - and handles trailing slash correctly. */ + and handles a trailing slash correctly. */ +#undef FUNC_REALPATH_NEARLY_WORKS + +/* Define to 1 if realpath() can malloc memory, always gives an absolute path, + and handles leading slashes and a trailing slash correctly. */ #undef FUNC_REALPATH_WORKS /* Define to 1 if futimesat mishandles a NULL file name. */ @@ -102,9 +104,6 @@ /* Define if you have, and want to use, gdbm interface routines. */ #undef GDBM -/* Define if gettimeofday clobbers the localtime buffer. */ -#undef GETTIMEOFDAY_CLOBBERS_LOCALTIME - /* Define this to 'void' or 'struct timezone' to match the system's declaration of the second argument to gettimeofday. */ #undef GETTIMEOFDAY_TIMEZONE @@ -150,10 +149,6 @@ #undef GNULIB_LOCK /* Define to a C preprocessor expression that evaluates to 1 or 0, depending - whether the gnulib module malloc-gnu shall be considered present. */ -#undef GNULIB_MALLOC_GNU - -/* Define to a C preprocessor expression that evaluates to 1 or 0, depending whether the gnulib module msvc-nothrow shall be considered present. */ #undef GNULIB_MSVC_NOTHROW @@ -181,6 +176,10 @@ #undef GNULIB_PROGRAM_INVOCATION_SHORT_NAME /* Define to a C preprocessor expression that evaluates to 1 or 0, depending + whether the gnulib module reallocarray shall be considered present. */ +#undef GNULIB_REALLOCARRAY + +/* Define to a C preprocessor expression that evaluates to 1 or 0, depending whether the gnulib module scanf shall be considered present. */ #undef GNULIB_SCANF @@ -192,9 +191,19 @@ whether the gnulib module strerror shall be considered present. */ #undef GNULIB_STRERROR +/* Define to a C preprocessor expression that evaluates to 1 or 0, depending + whether the gnulib module tempname shall be considered present. */ +#undef GNULIB_TEMPNAME + /* Define to 1 when the gnulib module btowc should be tested. */ #undef GNULIB_TEST_BTOWC +/* Define to 1 when the gnulib module calloc-gnu should be tested. */ +#undef GNULIB_TEST_CALLOC_GNU + +/* Define to 1 when the gnulib module calloc-posix should be tested. */ +#undef GNULIB_TEST_CALLOC_POSIX + /* Define to 1 when the gnulib module canonicalize should be tested. */ #undef GNULIB_TEST_CANONICALIZE @@ -238,17 +247,47 @@ /* Define to 1 when the gnulib module fdopendir should be tested. */ #undef GNULIB_TEST_FDOPENDIR +/* Define to 1 when the gnulib module fgetc should be tested. */ +#undef GNULIB_TEST_FGETC + +/* Define to 1 when the gnulib module fgets should be tested. */ +#undef GNULIB_TEST_FGETS + /* Define to 1 when the gnulib module fnmatch should be tested. */ #undef GNULIB_TEST_FNMATCH +/* Define to 1 when the gnulib module fprintf should be tested. */ +#undef GNULIB_TEST_FPRINTF + +/* Define to 1 when the gnulib module fputc should be tested. */ +#undef GNULIB_TEST_FPUTC + +/* Define to 1 when the gnulib module fputs should be tested. */ +#undef GNULIB_TEST_FPUTS + +/* Define to 1 when the gnulib module fread should be tested. */ +#undef GNULIB_TEST_FREAD + +/* Define to 1 when the gnulib module free-posix should be tested. */ +#undef GNULIB_TEST_FREE_POSIX + +/* Define to 1 when the gnulib module fscanf should be tested. */ +#undef GNULIB_TEST_FSCANF + /* Define to 1 when the gnulib module fstat should be tested. */ #undef GNULIB_TEST_FSTAT /* Define to 1 when the gnulib module fstatat should be tested. */ #undef GNULIB_TEST_FSTATAT -/* Define to 1 when the gnulib module futimens should be tested. */ -#undef GNULIB_TEST_FUTIMENS +/* Define to 1 when the gnulib module fwrite should be tested. */ +#undef GNULIB_TEST_FWRITE + +/* Define to 1 when the gnulib module getc should be tested. */ +#undef GNULIB_TEST_GETC + +/* Define to 1 when the gnulib module getchar should be tested. */ +#undef GNULIB_TEST_GETCHAR /* Define to 1 when the gnulib module getcwd should be tested. */ #undef GNULIB_TEST_GETCWD @@ -268,6 +307,9 @@ /* Define to 1 when the gnulib module getopt-posix should be tested. */ #undef GNULIB_TEST_GETOPT_POSIX +/* Define to 1 when the gnulib module getrandom should be tested. */ +#undef GNULIB_TEST_GETRANDOM + /* Define to 1 when the gnulib module gettimeofday should be tested. */ #undef GNULIB_TEST_GETTIMEOFDAY @@ -286,6 +328,9 @@ /* Define to 1 when the gnulib module lstat should be tested. */ #undef GNULIB_TEST_LSTAT +/* Define to 1 when the gnulib module malloc-gnu should be tested. */ +#undef GNULIB_TEST_MALLOC_GNU + /* Define to 1 when the gnulib module malloc-posix should be tested. */ #undef GNULIB_TEST_MALLOC_POSIX @@ -313,6 +358,9 @@ /* Define to 1 when the gnulib module memrchr should be tested. */ #undef GNULIB_TEST_MEMRCHR +/* Define to 1 when the gnulib module mkdir should be tested. */ +#undef GNULIB_TEST_MKDIR + /* Define to 1 when the gnulib module mkdtemp should be tested. */ #undef GNULIB_TEST_MKDTEMP @@ -337,6 +385,21 @@ /* Define to 1 when the gnulib module opendir should be tested. */ #undef GNULIB_TEST_OPENDIR +/* Define to 1 when the gnulib module pipe should be tested. */ +#undef GNULIB_TEST_PIPE + +/* Define to 1 when the gnulib module printf should be tested. */ +#undef GNULIB_TEST_PRINTF + +/* Define to 1 when the gnulib module putc should be tested. */ +#undef GNULIB_TEST_PUTC + +/* Define to 1 when the gnulib module putchar should be tested. */ +#undef GNULIB_TEST_PUTCHAR + +/* Define to 1 when the gnulib module puts should be tested. */ +#undef GNULIB_TEST_PUTS + /* Define to 1 when the gnulib module raise should be tested. */ #undef GNULIB_TEST_RAISE @@ -349,6 +412,12 @@ /* Define to 1 when the gnulib module readlink should be tested. */ #undef GNULIB_TEST_READLINK +/* Define to 1 when the gnulib module reallocarray should be tested. */ +#undef GNULIB_TEST_REALLOCARRAY + +/* Define to 1 when the gnulib module realloc-gnu should be tested. */ +#undef GNULIB_TEST_REALLOC_GNU + /* Define to 1 when the gnulib module realloc-posix should be tested. */ #undef GNULIB_TEST_REALLOC_POSIX @@ -367,6 +436,9 @@ /* Define to 1 when the gnulib module rmdir should be tested. */ #undef GNULIB_TEST_RMDIR +/* Define to 1 when the gnulib module scanf should be tested. */ +#undef GNULIB_TEST_SCANF + /* Define to 1 when the gnulib module select should be tested. */ #undef GNULIB_TEST_SELECT @@ -415,15 +487,18 @@ /* Define to 1 when the gnulib module unlinkat should be tested. */ #undef GNULIB_TEST_UNLINKAT -/* Define to 1 when the gnulib module unsetenv should be tested. */ -#undef GNULIB_TEST_UNSETENV - /* Define to 1 when the gnulib module utime should be tested. */ #undef GNULIB_TEST_UTIME /* Define to 1 when the gnulib module vasprintf should be tested. */ #undef GNULIB_TEST_VASPRINTF +/* Define to 1 when the gnulib module vfprintf should be tested. */ +#undef GNULIB_TEST_VFPRINTF + +/* Define to 1 when the gnulib module vprintf should be tested. */ +#undef GNULIB_TEST_VPRINTF + /* Define to 1 when the gnulib module vsnprintf should be tested. */ #undef GNULIB_TEST_VSNPRINTF @@ -436,6 +511,14 @@ /* Define to 1 when the gnulib module wmempcpy should be tested. */ #undef GNULIB_TEST_WMEMPCPY +/* Define to a C preprocessor expression that evaluates to 1 or 0, depending + whether the gnulib module xalloc shall be considered present. */ +#undef GNULIB_XALLOC + +/* Define to a C preprocessor expression that evaluates to 1 or 0, depending + whether the gnulib module xalloc-die shall be considered present. */ +#undef GNULIB_XALLOC_DIE + /* Define if nroff is GNU nroff. */ #undef GNU_NROFF @@ -446,10 +529,12 @@ may be supplied by this distribution. */ #undef HAVE_ALLOCA -/* Define to 1 if you have <alloca.h> and it should be used (not on Ultrix). - */ +/* Define to 1 if <alloca.h> works. */ #undef HAVE_ALLOCA_H +/* Define to 1 if you have the <bcrypt.h> header file. */ +#undef HAVE_BCRYPT_H + /* Define to 1 if you have the <bp-sym.h> header file. */ #undef HAVE_BP_SYM_H @@ -479,6 +564,9 @@ /* Define to 1 if you have the `chown' function. */ #undef HAVE_CHOWN +/* Define to 1 if you have the `clock_getres' function. */ +#undef HAVE_CLOCK_GETRES + /* Define to 1 if you have the `clock_gettime' function. */ #undef HAVE_CLOCK_GETTIME @@ -497,6 +585,36 @@ /* Define to 1 if you have the <crtdefs.h> header file. */ #undef HAVE_CRTDEFS_H +/* Define to 1 if C supports variable-length arrays. */ +#undef HAVE_C_VARARRAYS + +/* Define to 1 if you have the <db1/db.h> header file. */ +#undef HAVE_DB1_DB_H + +/* Define to 1 if you have the <db2_185.h> header file. */ +#undef HAVE_DB2_185_H + +/* Define to 1 if you have the <db2/db_185.h> header file. */ +#undef HAVE_DB2_DB_185_H + +/* Define to 1 if you have the <db3/db_185.h> header file. */ +#undef HAVE_DB3_DB_185_H + +/* Define to 1 if you have the <db4/db_185.h> header file. */ +#undef HAVE_DB4_DB_185_H + +/* Define to 1 if you have the <db5/db_185.h> header file. */ +#undef HAVE_DB5_DB_185_H + +/* Define to 1 if you have the <db_185.h> header file. */ +#undef HAVE_DB_185_H + +/* Define to 1 if you have the <db/db.h> header file. */ +#undef HAVE_DB_DB_H + +/* Define to 1 if you have the <db.h> header file. */ +#undef HAVE_DB_H + /* Define if the GNU dcgettext() function is already present or preinstalled. */ #undef HAVE_DCGETTEXT @@ -513,10 +631,26 @@ */ #undef HAVE_DECL_DIRFD +/* Define to 1 if you have the declaration of `ecvt', and to 0 if you don't. + */ +#undef HAVE_DECL_ECVT + +/* Define to 1 if you have the declaration of `execvpe', and to 0 if you + don't. */ +#undef HAVE_DECL_EXECVPE + /* Define to 1 if you have the declaration of `fchdir', and to 0 if you don't. */ #undef HAVE_DECL_FCHDIR +/* Define to 1 if you have the declaration of `fcloseall', and to 0 if you + don't. */ +#undef HAVE_DECL_FCLOSEALL + +/* Define to 1 if you have the declaration of `fcvt', and to 0 if you don't. + */ +#undef HAVE_DECL_FCVT + /* Define to 1 if you have the declaration of `fdopendir', and to 0 if you don't. */ #undef HAVE_DECL_FDOPENDIR @@ -553,6 +687,10 @@ you don't. */ #undef HAVE_DECL_FWRITE_UNLOCKED +/* Define to 1 if you have the declaration of `gcvt', and to 0 if you don't. + */ +#undef HAVE_DECL_GCVT + /* Define to 1 if you have the declaration of `getchar_unlocked', and to 0 if you don't. */ #undef HAVE_DECL_GETCHAR_UNLOCKED @@ -657,10 +795,6 @@ don't. */ #undef HAVE_DECL_TOWLOWER -/* Define to 1 if you have the declaration of `unsetenv', and to 0 if you - don't. */ -#undef HAVE_DECL_UNSETENV - /* Define to 1 if you have the declaration of `vsnprintf', and to 0 if you don't. */ #undef HAVE_DECL_VSNPRINTF @@ -669,6 +803,10 @@ don't. */ #undef HAVE_DECL_WCRTOMB +/* Define to 1 if you have the declaration of `wcsdup', and to 0 if you don't. + */ +#undef HAVE_DECL_WCSDUP + /* Define to 1 if you have the declaration of `_snprintf', and to 0 if you don't. */ #undef HAVE_DECL__SNPRINTF @@ -686,15 +824,15 @@ /* Define to 1 if you have the <dlfcn.h> header file. */ #undef HAVE_DLFCN_H -/* Define to 1 if you have the 'dup2' function. */ -#undef HAVE_DUP2 - /* Define if you have the declaration of environ. */ #undef HAVE_ENVIRON_DECL /* Define if you have eqn. */ #undef HAVE_EQN +/* Define to 1 if you have the `faccessat' function. */ +#undef HAVE_FACCESSAT + /* Define to 1 if you have the `fchdir' function. */ #undef HAVE_FCHDIR @@ -722,8 +860,8 @@ /* Define to 1 if you have the <fnmatch.h> header file. */ #undef HAVE_FNMATCH_H -/* Define to 1 if you have the `fpathconf' function. */ -#undef HAVE_FPATHCONF +/* Define if the 'free' function is guaranteed to preserve errno. */ +#undef HAVE_FREE_POSIX /* Define to 1 if you have the `fstatat' function. */ #undef HAVE_FSTATAT @@ -786,6 +924,9 @@ /* Define to 1 if you have the `getpwnam_r' function. */ #undef HAVE_GETPWNAM_R +/* Define to 1 if you have the `getrandom' function. */ +#undef HAVE_GETRANDOM + /* Define to 1 if you have the `getresgid' function. */ #undef HAVE_GETRESGID @@ -862,6 +1003,9 @@ /* Define to 1 if you have the `z' library (-lz). */ #undef HAVE_LIBZ +/* Define to 1 if the bcrypt library is guaranteed to be present. */ +#undef HAVE_LIB_BCRYPT + /* Define to 1 if you have the <limits.h> header file. */ #undef HAVE_LIMITS_H @@ -877,9 +1021,6 @@ /* Define to 1 if you have the <linux/fs.h> header file. */ #undef HAVE_LINUX_FS_H -/* Define to 1 if you support file names longer than 14 characters. */ -#undef HAVE_LONG_FILE_NAMES - /* Define to 1 if the system has the type 'long long int'. */ #undef HAVE_LONG_LONG_INT @@ -895,14 +1036,10 @@ /* Define if you have lzma. */ #undef HAVE_LZMA -/* Define to 1 if your system has a GNU libc compatible 'malloc' function, and - to 0 otherwise. */ -#undef HAVE_MALLOC_GNU - /* Define to 1 if you have the <malloc.h> header file. */ #undef HAVE_MALLOC_H -/* Define if the 'malloc' function is POSIX compliant. */ +/* Define if malloc, realloc, and calloc set errno on allocation failure. */ #undef HAVE_MALLOC_POSIX /* Define to 1 if mmap()'s MAP_ANONYMOUS flag is available after including @@ -927,9 +1064,6 @@ /* Define to 1 if you have the `memmem' function. */ #undef HAVE_MEMMEM -/* Define to 1 if you have the <memory.h> header file. */ -#undef HAVE_MEMORY_H - /* Define to 1 if you have the `mempcpy' function. */ #undef HAVE_MEMPCPY @@ -940,6 +1074,9 @@ when it succeeds. */ #undef HAVE_MINIMALLY_WORKING_GETCWD +/* Define to 1 if you have the <minix/config.h> header file. */ +#undef HAVE_MINIX_CONFIG_H + /* Define to 1 if <limits.h> defines the MIN and MAX macros. */ #undef HAVE_MINMAX_IN_LIMITS_H @@ -1021,8 +1158,8 @@ /* Define to 1 if you have the `readlink' function. */ #undef HAVE_READLINK -/* Define if the 'realloc' function is POSIX compliant. */ -#undef HAVE_REALLOC_POSIX +/* Define to 1 if you have the `reallocarray' function. */ +#undef HAVE_REALLOCARRAY /* Define to 1 if you have the `realpath' function. */ #undef HAVE_REALPATH @@ -1042,6 +1179,9 @@ /* Define to 1 if the system has the type `sa_family_t'. */ #undef HAVE_SA_FAMILY_T +/* Define to 1 if you have the <sdkddkver.h> header file. */ +#undef HAVE_SDKDDKVER_H + /* Define to 1 if you have the <search.h> header file. */ #undef HAVE_SEARCH_H @@ -1107,6 +1247,10 @@ buffer had been large enough. */ #undef HAVE_SNPRINTF_RETVAL_C99 +/* Define if the string produced by the snprintf function is always NUL + terminated. */ +#undef HAVE_SNPRINTF_TRUNCATION_C99 + /* Define to 1 if you have the <stdint.h> header file. */ #undef HAVE_STDINT_H @@ -1114,6 +1258,9 @@ uintmax_t. */ #undef HAVE_STDINT_H_WITH_UINTMAX +/* Define to 1 if you have the <stdio.h> header file. */ +#undef HAVE_STDIO_H + /* Define to 1 if you have the <stdlib.h> header file. */ #undef HAVE_STDLIB_H @@ -1126,10 +1273,7 @@ /* Define to 1 if you have the `strchrnul' function. */ #undef HAVE_STRCHRNUL -/* Define to 1 if you have the `strdup' function. */ -#undef HAVE_STRDUP - -/* Define to 1 if you have the `strerror_r' function. */ +/* Define if you have `strerror_r'. */ #undef HAVE_STRERROR_R /* Define to 1 if you have the <strings.h> header file. */ @@ -1217,6 +1361,9 @@ /* Define to 1 if you have the <sys/param.h> header file. */ #undef HAVE_SYS_PARAM_H +/* Define to 1 if you have the <sys/random.h> header file. */ +#undef HAVE_SYS_RANDOM_H + /* Define to 1 if you have the <sys/select.h> header file. */ #undef HAVE_SYS_SELECT_H @@ -1244,6 +1391,9 @@ /* Define to 1 if you have the <threads.h> header file. */ #undef HAVE_THREADS_H +/* Define to 1 if you have the `timespec_get' function. */ +#undef HAVE_TIMESPEC_GET + /* Define to 1 if you have the `towlower' function. */ #undef HAVE_TOWLOWER @@ -1256,9 +1406,6 @@ /* Define to 1 if you have the `unlinkat' function. */ #undef HAVE_UNLINKAT -/* Define to 1 if you have the `unsetenv' function. */ -#undef HAVE_UNSETENV - /* Define to 1 if the system has the type 'unsigned long long int'. */ #undef HAVE_UNSIGNED_LONG_LONG_INT @@ -1362,6 +1509,114 @@ #endif +/* Define to 1 if ctype.h defines __header_inline. */ +#undef HAVE___HEADER_INLINE + +/* Please see the Gnulib manual for how to use these macros. + + Suppress extern inline with HP-UX cc, as it appears to be broken; see + <https://lists.gnu.org/r/bug-texinfo/2013-02/msg00030.html>. + + Suppress extern inline with Sun C in standards-conformance mode, as it + mishandles inline functions that call each other. E.g., for 'inline void f + (void) { } inline void g (void) { f (); }', c99 incorrectly complains + 'reference to static identifier "f" in extern inline function'. + This bug was observed with Oracle Developer Studio 12.6 + (Sun C 5.15 SunOS_sparc 2017/05/30). + + Suppress extern inline (with or without __attribute__ ((__gnu_inline__))) + on configurations that mistakenly use 'static inline' to implement + functions or macros in standard C headers like <ctype.h>. For example, + if isdigit is mistakenly implemented via a static inline function, + a program containing an extern inline function that calls isdigit + may not work since the C standard prohibits extern inline functions + from calling static functions (ISO C 99 section 6.7.4.(3). + This bug is known to occur on: + + OS X 10.8 and earlier; see: + https://lists.gnu.org/r/bug-gnulib/2012-12/msg00023.html + + DragonFly; see + http://muscles.dragonflybsd.org/bulk/clang-master-potential/20141111_102002/logs/ah-tty-0.3.12.log + + FreeBSD; see: + https://lists.gnu.org/r/bug-gnulib/2014-07/msg00104.html + + OS X 10.9 has a macro __header_inline indicating the bug is fixed for C and + for clang but remains for g++; see <https://trac.macports.org/ticket/41033>. + Assume DragonFly and FreeBSD will be similar. + + GCC 4.3 and above with -std=c99 or -std=gnu99 implements ISO C99 + inline semantics, unless -fgnu89-inline is used. It defines a macro + __GNUC_STDC_INLINE__ to indicate this situation or a macro + __GNUC_GNU_INLINE__ to indicate the opposite situation. + GCC 4.2 with -std=c99 or -std=gnu99 implements the GNU C inline + semantics but warns, unless -fgnu89-inline is used: + warning: C99 inline functions are not supported; using GNU89 + warning: to disable this warning use -fgnu89-inline or the gnu_inline function attribute + It defines a macro __GNUC_GNU_INLINE__ to indicate this situation. + */ +#if (((defined __APPLE__ && defined __MACH__) \ + || defined __DragonFly__ || defined __FreeBSD__) \ + && (defined HAVE___HEADER_INLINE \ + ? (defined __cplusplus && defined __GNUC_STDC_INLINE__ \ + && ! defined __clang__) \ + : ((! defined _DONT_USE_CTYPE_INLINE_ \ + && (defined __GNUC__ || defined __cplusplus)) \ + || (defined _FORTIFY_SOURCE && 0 < _FORTIFY_SOURCE \ + && defined __GNUC__ && ! defined __cplusplus)))) +# define _GL_EXTERN_INLINE_STDHEADER_BUG +#endif +#if ((__GNUC__ \ + ? defined __GNUC_STDC_INLINE__ && __GNUC_STDC_INLINE__ \ + : (199901L <= __STDC_VERSION__ \ + && !defined __HP_cc \ + && !defined __PGI \ + && !(defined __SUNPRO_C && __STDC__))) \ + && !defined _GL_EXTERN_INLINE_STDHEADER_BUG) +# define _GL_INLINE inline +# define _GL_EXTERN_INLINE extern inline +# define _GL_EXTERN_INLINE_IN_USE +#elif (2 < __GNUC__ + (7 <= __GNUC_MINOR__) && !defined __STRICT_ANSI__ \ + && !defined _GL_EXTERN_INLINE_STDHEADER_BUG) +# if defined __GNUC_GNU_INLINE__ && __GNUC_GNU_INLINE__ + /* __gnu_inline__ suppresses a GCC 4.2 diagnostic. */ +# define _GL_INLINE extern inline __attribute__ ((__gnu_inline__)) +# else +# define _GL_INLINE extern inline +# endif +# define _GL_EXTERN_INLINE extern +# define _GL_EXTERN_INLINE_IN_USE +#else +# define _GL_INLINE _GL_UNUSED static +# define _GL_EXTERN_INLINE _GL_UNUSED static +#endif + +/* In GCC 4.6 (inclusive) to 5.1 (exclusive), + suppress bogus "no previous prototype for 'FOO'" + and "no previous declaration for 'FOO'" diagnostics, + when FOO is an inline function in the header; see + <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54113> and + <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63877>. */ +#if __GNUC__ == 4 && 6 <= __GNUC_MINOR__ +# if defined __GNUC_STDC_INLINE__ && __GNUC_STDC_INLINE__ +# define _GL_INLINE_HEADER_CONST_PRAGMA +# else +# define _GL_INLINE_HEADER_CONST_PRAGMA \ + _Pragma ("GCC diagnostic ignored \"-Wsuggest-attribute=const\"") +# endif +# define _GL_INLINE_HEADER_BEGIN \ + _Pragma ("GCC diagnostic push") \ + _Pragma ("GCC diagnostic ignored \"-Wmissing-prototypes\"") \ + _Pragma ("GCC diagnostic ignored \"-Wmissing-declarations\"") \ + _GL_INLINE_HEADER_CONST_PRAGMA +# define _GL_INLINE_HEADER_END \ + _Pragma ("GCC diagnostic pop") +#else +# define _GL_INLINE_HEADER_BEGIN +# define _GL_INLINE_HEADER_END +#endif + /* Define to 1 if the compiler supports the keyword '__inline'. */ #undef HAVE___INLINE @@ -1435,6 +1690,9 @@ /* Define if you have, and want to use, ndbm interface routines. */ #undef NDBM +/* Define to 1 if nl_langinfo is multithread-safe. */ +#undef NL_LANGINFO_MTSAFE + /* Define if you don't have nroff. */ #undef NROFF_MISSING @@ -1444,6 +1702,9 @@ /* Define to 1 if open() fails to recognize a trailing slash. */ #undef OPEN_TRAILING_SLASH_BUG +/* Relative override directory inside man path. */ +#undef OVERRIDE_DIR + /* Name of package */ #undef PACKAGE @@ -1465,6 +1726,75 @@ /* Define to the version of this package. */ #undef PACKAGE_VERSION +/* Program to use as browser. */ +#undef PROG_BROWSER + +/* Program to use as bunzip2. */ +#undef PROG_BUNZIP2 + +/* Program to use as cat. */ +#undef PROG_CAT + +/* Program to use as col. */ +#undef PROG_COL + +/* Default compressor, used for compressing cat pages. */ +#undef PROG_COMPRESSOR + +/* Program to use as eqn. */ +#undef PROG_EQN + +/* Program to use as grap. */ +#undef PROG_GRAP + +/* Program to use as grep. */ +#undef PROG_GREP + +/* Program to use as gunzip. */ +#undef PROG_GUNZIP + +/* Program to use as neqn. */ +#undef PROG_NEQN + +/* Program to use as nroff. */ +#undef PROG_NROFF + +/* Program to use as pager. */ +#undef PROG_PAGER + +/* Program to use as pic. */ +#undef PROG_PIC + +/* Program to use as refer. */ +#undef PROG_REFER + +/* Program to use as tbl. */ +#undef PROG_TBL + +/* Program to use as tr. */ +#undef PROG_TR + +/* Program to use as troff. */ +#undef PROG_TROFF + +/* Program to use as uncompress. */ +#undef PROG_UNCOMPRESS + +/* Program to use as unlzip. */ +#undef PROG_UNLZIP + +/* Program to use as unlzma. */ +#undef PROG_UNLZMA + +/* Program to use as unxz. */ +#undef PROG_UNXZ + +/* Program to use as unzstd. */ +#undef PROG_UNZSTD + +/* Program to use as vgrind. */ +#undef PROG_VGRIND + /* Define to the type that is the result of default argument promotions of type mode_t. */ #undef PROMOTED_MODE_T @@ -1479,6 +1809,10 @@ /* Define to 1 if readlink fails to recognize a trailing slash. */ #undef READLINK_TRAILING_SLASH_BUG +/* Define to 1 if readlink sets errno instead of truncating a too-long link. + */ +#undef READLINK_TRUNCATE_BUG + /* Define if rename does not work when the destination file exists, as on Cygwin 1.5 or Windows. */ #undef RENAME_DEST_EXISTS_BUG @@ -1505,6 +1839,10 @@ slash */ #undef REPLACE_FUNC_STAT_FILE +/* Define to 1 if utime needs help when passed a file name with a trailing + slash */ +#undef REPLACE_FUNC_UTIME_FILE + /* Define if nl_langinfo exists but is overridden by gnulib. */ #undef REPLACE_NL_LANGINFO @@ -1549,7 +1887,9 @@ /* Define to 1 if the `S_IS*' macros in <sys/stat.h> do not work properly. */ #undef STAT_MACROS_BROKEN -/* Define to 1 if you have the ANSI C header files. */ +/* Define to 1 if all of the C90 standard headers exist (not just the ones + required in a freestanding environment). This macro is provided for + backward compatibility; new code need not use it. */ #undef STDC_HEADERS /* Define to 1 if strerror_r returns char *. */ @@ -1583,6 +1923,10 @@ /* Define if the POSIX multithreading library can be used. */ #undef USE_POSIX_THREADS +/* Define if references to the POSIX multithreading library are satisfied by + libc. */ +#undef USE_POSIX_THREADS_FROM_LIBC + /* Define if references to the POSIX multithreading library should be made weak. */ #undef USE_POSIX_THREADS_WEAK @@ -1595,19 +1939,44 @@ #ifndef _DARWIN_C_SOURCE # undef _DARWIN_C_SOURCE #endif +/* Enable general extensions on Solaris. */ +#ifndef __EXTENSIONS__ +# undef __EXTENSIONS__ +#endif /* Enable GNU extensions on systems that have them. */ #ifndef _GNU_SOURCE # undef _GNU_SOURCE #endif -/* Enable NetBSD extensions on NetBSD. */ +/* Enable X/Open compliant socket functions that do not require linking + with -lxnet on HP-UX 11.11. */ +#ifndef _HPUX_ALT_XOPEN_SOCKET_API +# undef _HPUX_ALT_XOPEN_SOCKET_API +#endif +/* Identify the host operating system as Minix. + This macro does not affect the system headers' behavior. + A future release of Autoconf may stop defining this macro. */ +#ifndef _MINIX +# undef _MINIX +#endif +/* Enable general extensions on NetBSD. + Enable NetBSD compatibility extensions on Minix. */ #ifndef _NETBSD_SOURCE # undef _NETBSD_SOURCE #endif -/* Enable OpenBSD extensions on NetBSD. */ +/* Enable OpenBSD compatibility extensions on NetBSD. + Oddly enough, this does nothing on OpenBSD. */ #ifndef _OPENBSD_SOURCE # undef _OPENBSD_SOURCE #endif -/* Enable threading extensions on Solaris. */ +/* Define to 1 if needed for POSIX-compatible behavior. */ +#ifndef _POSIX_SOURCE +# undef _POSIX_SOURCE +#endif +/* Define to 2 if needed for POSIX-compatible behavior. */ +#ifndef _POSIX_1_SOURCE +# undef _POSIX_1_SOURCE +#endif +/* Enable POSIX-compatible threading on Solaris. */ #ifndef _POSIX_PTHREAD_SEMANTICS # undef _POSIX_PTHREAD_SEMANTICS #endif @@ -1643,21 +2012,11 @@ #ifndef _TANDEM_SOURCE # undef _TANDEM_SOURCE #endif -/* Enable X/Open extensions if necessary. HP-UX 11.11 defines - mbstate_t only if _XOPEN_SOURCE is defined to 500, regardless of - whether compiling with -Ae or -D_HPUX_SOURCE=1. */ +/* Enable X/Open extensions. Define to 500 only if necessary + to make mbstate_t available. */ #ifndef _XOPEN_SOURCE # undef _XOPEN_SOURCE #endif -/* Enable X/Open compliant socket functions that do not require linking - with -lxnet on HP-UX 11.11. */ -#ifndef _HPUX_ALT_XOPEN_SOCKET_API -# undef _HPUX_ALT_XOPEN_SOCKET_API -#endif -/* Enable general extensions on Solaris. */ -#ifndef __EXTENSIONS__ -# undef __EXTENSIONS__ -#endif /* Define if the native Windows multithreading API can be used. */ @@ -1666,9 +2025,6 @@ /* Version number of package */ #undef VERSION -/* Define to 1 if unsetenv returns void instead of int. */ -#undef VOID_UNSETENV - /* Define to l, ll, u, ul, ull, etc., as suitable for constants of type 'wchar_t'. */ #undef WCHAR_T_SUFFIX @@ -1714,18 +2070,15 @@ #endif +/* Define to enable the declarations of ISO C 11 types and functions. */ +#undef _ISOC11_SOURCE + /* Define for large files, on AIX-style hosts. */ #undef _LARGE_FILES /* Define to 1 on Solaris. */ #undef _LCONV_C99 -/* Define to 1 if on MINIX. */ -#undef _MINIX - -/* Define to 1 to make NetBSD features available. MINIX 3 needs this. */ -#undef _NETBSD_SOURCE - /* The _Noreturn keyword of C11. */ #ifndef _Noreturn # if (defined __cplusplus \ @@ -1740,13 +2093,14 @@ this syntax with 'extern'. */ # define _Noreturn [[noreturn]] # elif ((!defined __cplusplus || defined __clang__) \ - && (201112 <= (defined __STDC_VERSION__ ? __STDC_VERSION__ : 0) \ - || _GL_GNUC_PREREQ (4, 7) \ - || (defined __apple_build_version__ \ - ? 6000000 <= __apple_build_version__ \ - : 3 < __clang_major__ + (5 <= __clang_minor__)))) + && (201112 <= (defined __STDC_VERSION__ ? __STDC_VERSION__ : 0) \ + || (!defined __STRICT_ANSI__ \ + && (_GL_GNUC_PREREQ (4, 7) \ + || (defined __apple_build_version__ \ + ? 6000000 <= __apple_build_version__ \ + : 3 < __clang_major__ + (5 <= __clang_minor__)))))) /* _Noreturn works as-is. */ -# elif _GL_GNUC_PREREQ (2, 8) || 0x5110 <= __SUNPRO_C +# elif _GL_GNUC_PREREQ (2, 8) || defined __clang__ || 0x5110 <= __SUNPRO_C # define _Noreturn __attribute__ ((__noreturn__)) # elif 1200 <= (defined _MSC_VER ? _MSC_VER : 0) # define _Noreturn __declspec (noreturn) @@ -1756,17 +2110,10 @@ #endif -/* Define to 2 if the system does not provide POSIX.1 features except with - this defined. */ -#undef _POSIX_1_SOURCE - /* Define to 1 in order to get the POSIX compatible declarations of socket functions. */ #undef _POSIX_PII_SOCKET -/* Define to 1 if you need to in order for 'stat' and other things to work. */ -#undef _POSIX_SOURCE - /* Define if you want <regex.h> to include <limits.h>, so that it consistently overrides <limits.h>'s RE_DUP_MAX. */ #undef _REGEX_INCLUDE_LIMITS_H @@ -1774,6 +2121,9 @@ /* Define if you want regoff_t to be at least as wide POSIX requires. */ #undef _REGEX_LARGE_OFFSETS +/* Number of bits in a timestamp, on hosts where this is settable. */ +#undef _TIME_BITS + /* For standard stat data types on VMS. */ #undef _USE_STD_STAT @@ -1781,12 +2131,19 @@ used. */ #undef __GETOPT_PREFIX +/* For 64-bit time_t on 32-bit mingw. */ +#undef __MINGW_USE_VC2005_COMPAT + /* Define to 1 if the system <stdint.h> predates C++11. */ #undef __STDC_CONSTANT_MACROS /* Define to 1 if the system <stdint.h> predates C++11. */ #undef __STDC_LIMIT_MACROS +/* Define to 1 if C does not support variable-length arrays, and if the + compiler does not already define this. */ +#undef __STDC_NO_VLA__ + /* The _GL_ASYNC_SAFE marker should be attached to functions that are signal handlers (for signals other than SIGABRT, SIGPIPE) or can be invoked from such signal handlers. Such functions have some restrictions: @@ -1815,7 +2172,9 @@ /* Attributes. */ -#ifdef __has_attribute +#if (defined __has_attribute \ + && (!defined __clang_minor__ \ + || 3 < __clang_major__ + (5 <= __clang_minor__))) # define _GL_HAS_ATTRIBUTE(attr) __has_attribute (__##attr##__) #else # define _GL_HAS_ATTRIBUTE(attr) _GL_ATTR_##attr @@ -1825,17 +2184,18 @@ # define _GL_ATTR_cold _GL_GNUC_PREREQ (4, 3) # define _GL_ATTR_const _GL_GNUC_PREREQ (2, 95) # define _GL_ATTR_deprecated _GL_GNUC_PREREQ (3, 1) +# define _GL_ATTR_diagnose_if 0 # define _GL_ATTR_error _GL_GNUC_PREREQ (4, 3) # define _GL_ATTR_externally_visible _GL_GNUC_PREREQ (4, 1) # define _GL_ATTR_fallthrough _GL_GNUC_PREREQ (7, 0) # define _GL_ATTR_format _GL_GNUC_PREREQ (2, 7) # define _GL_ATTR_leaf _GL_GNUC_PREREQ (4, 6) +# define _GL_ATTR_malloc _GL_GNUC_PREREQ (3, 0) # ifdef _ICC # define _GL_ATTR_may_alias 0 # else # define _GL_ATTR_may_alias _GL_GNUC_PREREQ (3, 3) # endif -# define _GL_ATTR_malloc _GL_GNUC_PREREQ (3, 0) # define _GL_ATTR_noinline _GL_GNUC_PREREQ (3, 1) # define _GL_ATTR_nonnull _GL_GNUC_PREREQ (3, 3) # define _GL_ATTR_nonstring _GL_GNUC_PREREQ (8, 0) @@ -1848,40 +2208,99 @@ # define _GL_ATTR_warn_unused_result _GL_GNUC_PREREQ (3, 4) #endif +#ifdef __has_c_attribute +# define _GL_HAS_C_ATTRIBUTE(attr) __has_c_attribute (__##attr##__) +#else +# define _GL_HAS_C_ATTRIBUTE(attr) 0 +#endif + +/* _GL_ATTRIBUTE_ALLOC_SIZE ((N)) declares that the Nth argument of the function + is the size of the returned memory block. + _GL_ATTRIBUTE_ALLOC_SIZE ((M, N)) declares that the Mth argument multiplied + by the Nth argument of the function is the size of the returned memory block. + */ +/* Applies to: function, pointer to function, function types. */ #if _GL_HAS_ATTRIBUTE (alloc_size) # define _GL_ATTRIBUTE_ALLOC_SIZE(args) __attribute__ ((__alloc_size__ args)) #else # define _GL_ATTRIBUTE_ALLOC_SIZE(args) #endif +/* _GL_ATTRIBUTE_ALWAYS_INLINE tells that the compiler should always inline the + function and report an error if it cannot do so. */ +/* Applies to: function. */ #if _GL_HAS_ATTRIBUTE (always_inline) # define _GL_ATTRIBUTE_ALWAYS_INLINE __attribute__ ((__always_inline__)) #else # define _GL_ATTRIBUTE_ALWAYS_INLINE #endif +/* _GL_ATTRIBUTE_ARTIFICIAL declares that the function is not important to show + in stack traces when debugging. The compiler should omit the function from + stack traces. */ +/* Applies to: function. */ #if _GL_HAS_ATTRIBUTE (artificial) # define _GL_ATTRIBUTE_ARTIFICIAL __attribute__ ((__artificial__)) #else # define _GL_ATTRIBUTE_ARTIFICIAL #endif +/* _GL_ATTRIBUTE_COLD declares that the function is rarely executed. */ +/* Applies to: functions. */ /* Avoid __attribute__ ((cold)) on MinGW; see thread starting at - <https://lists.gnu.org/r/emacs-devel/2019-04/msg01152.html>. */ + <https://lists.gnu.org/r/emacs-devel/2019-04/msg01152.html>. + Also, Oracle Studio 12.6 requires 'cold' not '__cold__'. */ #if _GL_HAS_ATTRIBUTE (cold) && !defined __MINGW32__ -# define _GL_ATTRIBUTE_COLD __attribute__ ((__cold__)) +# ifndef __SUNPRO_C +# define _GL_ATTRIBUTE_COLD __attribute__ ((__cold__)) +# else +# define _GL_ATTRIBUTE_COLD __attribute__ ((cold)) +# endif #else # define _GL_ATTRIBUTE_COLD #endif +/* _GL_ATTRIBUTE_CONST declares that it is OK for a compiler to omit duplicate + calls to the function with the same arguments. + This attribute is safe for a function that neither depends on nor affects + observable state, and always returns exactly once - e.g., does not loop + forever, and does not call longjmp. + (This attribute is stricter than _GL_ATTRIBUTE_PURE.) */ +/* Applies to: functions. */ #if _GL_HAS_ATTRIBUTE (const) # define _GL_ATTRIBUTE_CONST __attribute__ ((__const__)) #else # define _GL_ATTRIBUTE_CONST #endif -#if 201710L < __STDC_VERSION__ +/* _GL_ATTRIBUTE_DEALLOC (F, I) declares that the function returns pointers + that can be freed by passing them as the Ith argument to the + function F. + _GL_ATTRIBUTE_DEALLOC_FREE declares that the function returns pointers that + can be freed via 'free'; it can be used only after declaring 'free'. */ +/* Applies to: functions. Cannot be used on inline functions. */ +#if _GL_GNUC_PREREQ (11, 0) +# define _GL_ATTRIBUTE_DEALLOC(f, i) __attribute__ ((__malloc__ (f, i))) +#else +# define _GL_ATTRIBUTE_DEALLOC(f, i) +#endif +/* If gnulib's <string.h> or <wchar.h> has already defined this macro, continue + to use this earlier definition, since <stdlib.h> may not have been included + yet. */ +#ifndef _GL_ATTRIBUTE_DEALLOC_FREE +# define _GL_ATTRIBUTE_DEALLOC_FREE _GL_ATTRIBUTE_DEALLOC (free, 1) +#endif + +/* _GL_ATTRIBUTE_DEPRECATED: Declares that an entity is deprecated. + The compiler may warn if the entity is used. */ +/* Applies to: + - function, variable, + - struct, union, struct/union member, + - enumeration, enumeration item, + - typedef, + in C++ also: namespace, class, template specialization. */ +#if _GL_HAS_C_ATTRIBUTE (deprecated) # define _GL_ATTRIBUTE_DEPRECATED [[__deprecated__]] #elif _GL_HAS_ATTRIBUTE (deprecated) # define _GL_ATTRIBUTE_DEPRECATED __attribute__ ((__deprecated__)) @@ -1889,22 +2308,37 @@ # define _GL_ATTRIBUTE_DEPRECATED #endif +/* _GL_ATTRIBUTE_ERROR(msg) requests an error if a function is called and + the function call is not optimized away. + _GL_ATTRIBUTE_WARNING(msg) requests a warning if a function is called and + the function call is not optimized away. */ +/* Applies to: functions. */ #if _GL_HAS_ATTRIBUTE (error) # define _GL_ATTRIBUTE_ERROR(msg) __attribute__ ((__error__ (msg))) # define _GL_ATTRIBUTE_WARNING(msg) __attribute__ ((__warning__ (msg))) +#elif _GL_HAS_ATTRIBUTE (diagnose_if) +# define _GL_ATTRIBUTE_ERROR(msg) __attribute__ ((__diagnose_if__ (1, msg, "error"))) +# define _GL_ATTRIBUTE_WARNING(msg) __attribute__ ((__diagnose_if__ (1, msg, "warning"))) #else # define _GL_ATTRIBUTE_ERROR(msg) # define _GL_ATTRIBUTE_WARNING(msg) #endif +/* _GL_ATTRIBUTE_EXTERNALLY_VISIBLE declares that the entity should remain + visible to debuggers etc., even with '-fwhole-program'. */ +/* Applies to: functions, variables. */ #if _GL_HAS_ATTRIBUTE (externally_visible) # define _GL_ATTRIBUTE_EXTERNALLY_VISIBLE __attribute__ ((externally_visible)) #else # define _GL_ATTRIBUTE_EXTERNALLY_VISIBLE #endif -/* FALLTHROUGH is special, because it always expands to something. */ -#if 201710L < __STDC_VERSION__ +/* _GL_ATTRIBUTE_FALLTHROUGH declares that it is not a programming mistake if + the control flow falls through to the immediately following 'case' or + 'default' label. The compiler should not warn in this case. */ +/* Applies to: Empty statement (;), inside a 'switch' statement. */ +/* Always expands to something. */ +#if _GL_HAS_C_ATTRIBUTE (fallthrough) # define _GL_ATTRIBUTE_FALLTHROUGH [[__fallthrough__]] #elif _GL_HAS_ATTRIBUTE (fallthrough) # define _GL_ATTRIBUTE_FALLTHROUGH __attribute__ ((__fallthrough__)) @@ -1912,42 +2346,81 @@ # define _GL_ATTRIBUTE_FALLTHROUGH ((void) 0) #endif +/* _GL_ATTRIBUTE_FORMAT ((ARCHETYPE, STRING-INDEX, FIRST-TO-CHECK)) + declares that the STRING-INDEXth function argument is a format string of + style ARCHETYPE, which is one of: + printf, gnu_printf + scanf, gnu_scanf, + strftime, gnu_strftime, + strfmon, + or the same thing prefixed and suffixed with '__'. + If FIRST-TO-CHECK is not 0, arguments starting at FIRST-TO_CHECK + are suitable for the format string. */ +/* Applies to: functions. */ #if _GL_HAS_ATTRIBUTE (format) # define _GL_ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec)) #else # define _GL_ATTRIBUTE_FORMAT(spec) #endif +/* _GL_ATTRIBUTE_LEAF declares that if the function is called from some other + compilation unit, it executes code from that unit only by return or by + exception handling. This declaration lets the compiler optimize that unit + more aggressively. */ +/* Applies to: functions. */ #if _GL_HAS_ATTRIBUTE (leaf) # define _GL_ATTRIBUTE_LEAF __attribute__ ((__leaf__)) #else # define _GL_ATTRIBUTE_LEAF #endif -#if _GL_HAS_ATTRIBUTE (may_alias) +/* _GL_ATTRIBUTE_MALLOC declares that the function returns a pointer to freshly + allocated memory. */ +/* Applies to: functions. */ +#if _GL_HAS_ATTRIBUTE (malloc) +# define _GL_ATTRIBUTE_MALLOC __attribute__ ((__malloc__)) +#else +# define _GL_ATTRIBUTE_MALLOC +#endif + +/* _GL_ATTRIBUTE_MAY_ALIAS declares that pointers to the type may point to the + same storage as pointers to other types. Thus this declaration disables + strict aliasing optimization. */ +/* Applies to: types. */ +/* Oracle Studio 12.6 mishandles may_alias despite __has_attribute OK. */ +#if _GL_HAS_ATTRIBUTE (may_alias) && !defined __SUNPRO_C # define _GL_ATTRIBUTE_MAY_ALIAS __attribute__ ((__may_alias__)) #else # define _GL_ATTRIBUTE_MAY_ALIAS #endif -#if 201710L < __STDC_VERSION__ +/* _GL_ATTRIBUTE_MAYBE_UNUSED declares that it is not a programming mistake if + the entity is not used. The compiler should not warn if the entity is not + used. */ +/* Applies to: + - function, variable, + - struct, union, struct/union member, + - enumeration, enumeration item, + - typedef, + in C++ also: class. */ +/* In C++ and C2x, this is spelled [[__maybe_unused__]]. + GCC's syntax is __attribute__ ((__unused__)). + clang supports both syntaxes. */ +#if _GL_HAS_C_ATTRIBUTE (maybe_unused) # define _GL_ATTRIBUTE_MAYBE_UNUSED [[__maybe_unused__]] -#elif _GL_HAS_ATTRIBUTE (unused) -# define _GL_ATTRIBUTE_MAYBE_UNUSED __attribute__ ((__unused__)) #else -# define _GL_ATTRIBUTE_MAYBE_UNUSED +# define _GL_ATTRIBUTE_MAYBE_UNUSED _GL_ATTRIBUTE_UNUSED #endif -/* Earlier spellings of this macro. */ +/* Alternative spelling of this macro, for convenience. */ #define _GL_UNUSED _GL_ATTRIBUTE_MAYBE_UNUSED +/* Earlier spellings of this macro. */ #define _UNUSED_PARAMETER_ _GL_ATTRIBUTE_MAYBE_UNUSED -#if _GL_HAS_ATTRIBUTE (malloc) -# define _GL_ATTRIBUTE_MALLOC __attribute__ ((__malloc__)) -#else -# define _GL_ATTRIBUTE_MALLOC -#endif - -#if 201710L < __STDC_VERSION__ +/* _GL_ATTRIBUTE_NODISCARD declares that the caller of the function should not + discard the return value. The compiler may warn if the caller does not use + the return value, unless the caller uses something like ignore_value. */ +/* Applies to: function, enumeration, class. */ +#if _GL_HAS_C_ATTRIBUTE (nodiscard) # define _GL_ATTRIBUTE_NODISCARD [[__nodiscard__]] #elif _GL_HAS_ATTRIBUTE (warn_unused_result) # define _GL_ATTRIBUTE_NODISCARD __attribute__ ((__warn_unused_result__)) @@ -1955,18 +2428,30 @@ # define _GL_ATTRIBUTE_NODISCARD #endif +/* _GL_ATTRIBUTE_NOINLINE tells that the compiler should not inline the + function. */ +/* Applies to: functions. */ #if _GL_HAS_ATTRIBUTE (noinline) # define _GL_ATTRIBUTE_NOINLINE __attribute__ ((__noinline__)) #else # define _GL_ATTRIBUTE_NOINLINE #endif +/* _GL_ATTRIBUTE_NONNULL ((N1, N2,...)) declares that the arguments N1, N2,... + must not be NULL. + _GL_ATTRIBUTE_NONNULL () declares that all pointer arguments must not be + null. */ +/* Applies to: functions. */ #if _GL_HAS_ATTRIBUTE (nonnull) # define _GL_ATTRIBUTE_NONNULL(args) __attribute__ ((__nonnull__ args)) #else # define _GL_ATTRIBUTE_NONNULL(args) #endif +/* _GL_ATTRIBUTE_NONSTRING declares that the contents of a character array is + not meant to be NUL-terminated. */ +/* Applies to: struct/union members and variables that are arrays of element + type '[[un]signed] char'. */ #if _GL_HAS_ATTRIBUTE (nonstring) # define _GL_ATTRIBUTE_NONSTRING __attribute__ ((__nonstring__)) #else @@ -1975,40 +2460,76 @@ /* There is no _GL_ATTRIBUTE_NORETURN; use _Noreturn instead. */ +/* _GL_ATTRIBUTE_NOTHROW declares that the function does not throw exceptions. + */ +/* Applies to: functions. */ #if _GL_HAS_ATTRIBUTE (nothrow) && !defined __cplusplus # define _GL_ATTRIBUTE_NOTHROW __attribute__ ((__nothrow__)) #else # define _GL_ATTRIBUTE_NOTHROW #endif +/* _GL_ATTRIBUTE_PACKED declares: + For struct members: The member has the smallest possible alignment. + For struct, union, class: All members have the smallest possible alignment, + minimizing the memory required. */ +/* Applies to: struct members, struct, union, + in C++ also: class. */ #if _GL_HAS_ATTRIBUTE (packed) # define _GL_ATTRIBUTE_PACKED __attribute__ ((__packed__)) #else # define _GL_ATTRIBUTE_PACKED #endif +/* _GL_ATTRIBUTE_PURE declares that It is OK for a compiler to omit duplicate + calls to the function with the same arguments if observable state is not + changed between calls. + This attribute is safe for a function that does not affect + observable state, and always returns exactly once. + (This attribute is looser than _GL_ATTRIBUTE_CONST.) */ +/* Applies to: functions. */ #if _GL_HAS_ATTRIBUTE (pure) # define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__)) #else # define _GL_ATTRIBUTE_PURE #endif +/* _GL_ATTRIBUTE_RETURNS_NONNULL declares that the function's return value is + a non-NULL pointer. */ +/* Applies to: functions. */ #if _GL_HAS_ATTRIBUTE (returns_nonnull) # define _GL_ATTRIBUTE_RETURNS_NONNULL __attribute__ ((__returns_nonnull__)) #else # define _GL_ATTRIBUTE_RETURNS_NONNULL #endif +/* _GL_ATTRIBUTE_SENTINEL(pos) declares that the variadic function expects a + trailing NULL argument. + _GL_ATTRIBUTE_SENTINEL () - The last argument is NULL (requires C99). + _GL_ATTRIBUTE_SENTINEL ((N)) - The (N+1)st argument from the end is NULL. */ +/* Applies to: functions. */ #if _GL_HAS_ATTRIBUTE (sentinel) # define _GL_ATTRIBUTE_SENTINEL(pos) __attribute__ ((__sentinel__ pos)) #else # define _GL_ATTRIBUTE_SENTINEL(pos) #endif +/* A helper macro. Don't use it directly. */ +#if _GL_HAS_ATTRIBUTE (unused) +# define _GL_ATTRIBUTE_UNUSED __attribute__ ((__unused__)) +#else +# define _GL_ATTRIBUTE_UNUSED +#endif + -/* To support C++ as well as C, use _GL_UNUSED_LABEL with trailing ';'. */ -#if !defined __cplusplus || _GL_GNUC_PREREQ (4, 5) -# define _GL_UNUSED_LABEL _GL_ATTRIBUTE_MAYBE_UNUSED +/* _GL_UNUSED_LABEL; declares that it is not a programming mistake if the + immediately preceding label is not used. The compiler should not warn + if the label is not used. */ +/* Applies to: label (both in C and C++). */ +/* Note that g++ < 4.5 does not support the '__attribute__ ((__unused__)) ;' + syntax. But clang does. */ +#if !(defined __cplusplus && !_GL_GNUC_PREREQ (4, 5)) || defined __clang__ +# define _GL_UNUSED_LABEL _GL_ATTRIBUTE_UNUSED #else # define _GL_UNUSED_LABEL #endif @@ -2017,110 +2538,6 @@ /* Define to empty if `const' does not conform to ANSI C. */ #undef const -/* Please see the Gnulib manual for how to use these macros. - - Suppress extern inline with HP-UX cc, as it appears to be broken; see - <https://lists.gnu.org/r/bug-texinfo/2013-02/msg00030.html>. - - Suppress extern inline with Sun C in standards-conformance mode, as it - mishandles inline functions that call each other. E.g., for 'inline void f - (void) { } inline void g (void) { f (); }', c99 incorrectly complains - 'reference to static identifier "f" in extern inline function'. - This bug was observed with Sun C 5.12 SunOS_i386 2011/11/16. - - Suppress extern inline (with or without __attribute__ ((__gnu_inline__))) - on configurations that mistakenly use 'static inline' to implement - functions or macros in standard C headers like <ctype.h>. For example, - if isdigit is mistakenly implemented via a static inline function, - a program containing an extern inline function that calls isdigit - may not work since the C standard prohibits extern inline functions - from calling static functions (ISO C 99 section 6.7.4.(3). - This bug is known to occur on: - - OS X 10.8 and earlier; see: - https://lists.gnu.org/r/bug-gnulib/2012-12/msg00023.html - - DragonFly; see - http://muscles.dragonflybsd.org/bulk/clang-master-potential/20141111_102002/logs/ah-tty-0.3.12.log - - FreeBSD; see: - https://lists.gnu.org/r/bug-gnulib/2014-07/msg00104.html - - OS X 10.9 has a macro __header_inline indicating the bug is fixed for C and - for clang but remains for g++; see <https://trac.macports.org/ticket/41033>. - Assume DragonFly and FreeBSD will be similar. - - GCC 4.3 and above with -std=c99 or -std=gnu99 implements ISO C99 - inline semantics, unless -fgnu89-inline is used. It defines a macro - __GNUC_STDC_INLINE__ to indicate this situation or a macro - __GNUC_GNU_INLINE__ to indicate the opposite situation. - GCC 4.2 with -std=c99 or -std=gnu99 implements the GNU C inline - semantics but warns, unless -fgnu89-inline is used: - warning: C99 inline functions are not supported; using GNU89 - warning: to disable this warning use -fgnu89-inline or the gnu_inline function attribute - It defines a macro __GNUC_GNU_INLINE__ to indicate this situation. - */ -#if (((defined __APPLE__ && defined __MACH__) \ - || defined __DragonFly__ || defined __FreeBSD__) \ - && (defined __header_inline \ - ? (defined __cplusplus && defined __GNUC_STDC_INLINE__ \ - && ! defined __clang__) \ - : ((! defined _DONT_USE_CTYPE_INLINE_ \ - && (defined __GNUC__ || defined __cplusplus)) \ - || (defined _FORTIFY_SOURCE && 0 < _FORTIFY_SOURCE \ - && defined __GNUC__ && ! defined __cplusplus)))) -# define _GL_EXTERN_INLINE_STDHEADER_BUG -#endif -#if ((__GNUC__ \ - ? defined __GNUC_STDC_INLINE__ && __GNUC_STDC_INLINE__ \ - : (199901L <= __STDC_VERSION__ \ - && !defined __HP_cc \ - && !defined __PGI \ - && !(defined __SUNPRO_C && __STDC__))) \ - && !defined _GL_EXTERN_INLINE_STDHEADER_BUG) -# define _GL_INLINE inline -# define _GL_EXTERN_INLINE extern inline -# define _GL_EXTERN_INLINE_IN_USE -#elif (2 < __GNUC__ + (7 <= __GNUC_MINOR__) && !defined __STRICT_ANSI__ \ - && !defined _GL_EXTERN_INLINE_STDHEADER_BUG) -# if defined __GNUC_GNU_INLINE__ && __GNUC_GNU_INLINE__ - /* __gnu_inline__ suppresses a GCC 4.2 diagnostic. */ -# define _GL_INLINE extern inline __attribute__ ((__gnu_inline__)) -# else -# define _GL_INLINE extern inline -# endif -# define _GL_EXTERN_INLINE extern -# define _GL_EXTERN_INLINE_IN_USE -#else -# define _GL_INLINE static _GL_UNUSED -# define _GL_EXTERN_INLINE static _GL_UNUSED -#endif - -/* In GCC 4.6 (inclusive) to 5.1 (exclusive), - suppress bogus "no previous prototype for 'FOO'" - and "no previous declaration for 'FOO'" diagnostics, - when FOO is an inline function in the header; see - <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54113> and - <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63877>. */ -#if __GNUC__ == 4 && 6 <= __GNUC_MINOR__ -# if defined __GNUC_STDC_INLINE__ && __GNUC_STDC_INLINE__ -# define _GL_INLINE_HEADER_CONST_PRAGMA -# else -# define _GL_INLINE_HEADER_CONST_PRAGMA \ - _Pragma ("GCC diagnostic ignored \"-Wsuggest-attribute=const\"") -# endif -# define _GL_INLINE_HEADER_BEGIN \ - _Pragma ("GCC diagnostic push") \ - _Pragma ("GCC diagnostic ignored \"-Wmissing-prototypes\"") \ - _Pragma ("GCC diagnostic ignored \"-Wmissing-declarations\"") \ - _GL_INLINE_HEADER_CONST_PRAGMA -# define _GL_INLINE_HEADER_END \ - _Pragma ("GCC diagnostic pop") -#else -# define _GL_INLINE_HEADER_BEGIN -# define _GL_INLINE_HEADER_END -#endif - /* Define to `int' if <sys/types.h> doesn't define. */ #undef gid_t @@ -2149,13 +2566,29 @@ /* Define to a type if <wchar.h> does not define. */ #undef mbstate_t +/* _GL_CMP (n1, n2) performs a three-valued comparison on n1 vs. n2, where + n1 and n2 are expressions without side effects, that evaluate to real + numbers (excluding NaN). + It returns + 1 if n1 > n2 + 0 if n1 == n2 + -1 if n1 < n2 + The naïve code (n1 > n2 ? 1 : n1 < n2 ? -1 : 0) produces a conditional + jump with nearly all GCC versions up to GCC 10. + This variant (n1 < n2 ? -1 : n1 > n2) produces a conditional with many + GCC versions up to GCC 9. + The better code (n1 > n2) - (n1 < n2) from Hacker's Delight § 2-9 + avoids conditional jumps in all GCC versions >= 3.4. */ +#define _GL_CMP(n1, n2) (((n1) > (n2)) - ((n1) < (n2))) + + /* Define to `int' if <sys/types.h> does not define. */ #undef mode_t /* Define to the type of st_nlink in struct stat, or a supertype. */ #undef nlink_t -/* Define to `int' if <sys/types.h> does not define. */ +/* Define as a signed integer type capable of holding a process identifier. */ #undef pid_t /* Define as the type of the result of subtracting two pointers, if the system @@ -2209,7 +2642,7 @@ /* Define to the equivalent of the C99 'restrict' keyword, or to nothing if this is not supported. Do not define if restrict is - supported directly. */ + supported only directly. */ #undef restrict /* Work around a bug in older versions of Sun C++, which did not #define __restrict__ or support _Restrict or __restrict__ |