_GL_INT_OP_WRAPV (a, b, r, -, _GL_INT_SUBTRACT_RANGE_OVERFLOW)
#endif
#if _GL_HAS_BUILTIN_MUL_OVERFLOW
-/* Work around GCC bug 91450. */
-# define INT_MULTIPLY_WRAPV(a, b, r) \
- ((!_GL_SIGNED_TYPE_OR_EXPR (*(r)) && EXPR_SIGNED (a) && EXPR_SIGNED (b) \
- && _GL_INT_MULTIPLY_RANGE_OVERFLOW (a, b, 0, (__typeof__ (*(r))) -1)) \
- ? ((void) __builtin_mul_overflow (a, b, r), 1) \
- : __builtin_mul_overflow (a, b, r))
+# if (9 < __GNUC__ + (3 <= __GNUC_MINOR__) \
+ || (__GNUC__ == 8 && 4 <= __GNUC_MINOR__))
+# define INT_MULTIPLY_WRAPV(a, b, r) __builtin_mul_overflow (a, b, r)
+# else
+ /* Work around GCC bug 91450. */
+# define INT_MULTIPLY_WRAPV(a, b, r) \
+ ((!_GL_SIGNED_TYPE_OR_EXPR (*(r)) && EXPR_SIGNED (a) && EXPR_SIGNED (b) \
+ && _GL_INT_MULTIPLY_RANGE_OVERFLOW (a, b, 0, (__typeof__ (*(r))) -1)) \
+ ? ((void) __builtin_mul_overflow (a, b, r), 1) \
+ : __builtin_mul_overflow (a, b, r))
+# endif
#else
# define INT_MULTIPLY_WRAPV(a, b, r) \
_GL_INT_OP_WRAPV (a, b, r, *, _GL_INT_MULTIPLY_RANGE_OVERFLOW)
if (type == OP_BACK_REF)
{
Idx subexp_idx = dfa->nodes[node].opr.idx + 1;
- naccepted = regs[subexp_idx].rm_eo - regs[subexp_idx].rm_so;
+ if (subexp_idx < nregs)
+ naccepted = regs[subexp_idx].rm_eo - regs[subexp_idx].rm_so;
if (fs != NULL)
{
- if (regs[subexp_idx].rm_so == -1 || regs[subexp_idx].rm_eo == -1)
+ if (subexp_idx >= nregs
+ || regs[subexp_idx].rm_so == -1
+ || regs[subexp_idx].rm_eo == -1)
return -1;
else if (naccepted)
{
_GL_CXXALIAS_SYS (pthread_sigmask, int,
(int how, const sigset_t *new_mask, sigset_t *old_mask));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (pthread_sigmask);
+# endif
#elif defined GNULIB_POSIXCHECK
# undef pthread_sigmask
# if HAVE_RAW_DECL_PTHREAD_SIGMASK
# endif
_GL_CXXALIAS_SYS (raise, int, (int sig));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (raise);
+# endif
#elif defined GNULIB_POSIXCHECK
# undef raise
/* Assume raise is always declared. */
_GL_CXXALIAS_SYS (signal, _gl_function_taking_int_returning_void_t,
(int sig, _gl_function_taking_int_returning_void_t func));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (signal);
+# endif
# if !@HAVE_POSIX_SIGNALBLOCKING@ && GNULIB_defined_SIGPIPE
/* Raise signal SIGPIPE. */
/* 7.18.1.4. Integer types capable of holding object pointers */
-/* kLIBC's stdint.h defines _INTPTR_T_DECLARED and needs its own
+/* kLIBC's <stdint.h> defines _INTPTR_T_DECLARED and needs its own
definitions of intptr_t and uintptr_t (which use int and unsigned)
- to avoid clashes with declarations of system functions like sbrk. */
-# ifndef _INTPTR_T_DECLARED
-# undef intptr_t
-# undef uintptr_t
+ to avoid clashes with declarations of system functions like sbrk.
+ Similarly, mingw 5.22 <crtdefs.h> defines _INTPTR_T_DEFINED and
+ _UINTPTR_T_DEFINED and needs its own definitions of intptr_t and
+ uintptr_t to avoid conflicting declarations of system functions like
+ _findclose in <io.h>. */
+# if !((defined __KLIBC__ && defined _INTPTR_T_DECLARED) \
+ || (defined __MINGW32__ && defined _INTPTR_T_DEFINED && defined _UINTPTR_T_DEFINED))
+# undef intptr_t
+# undef uintptr_t
+# ifdef _WIN64
+typedef long long int gl_intptr_t;
+typedef unsigned long long int gl_uintptr_t;
+# else
typedef long int gl_intptr_t;
typedef unsigned long int gl_uintptr_t;
-# define intptr_t gl_intptr_t
-# define uintptr_t gl_uintptr_t
+# endif
+# define intptr_t gl_intptr_t
+# define uintptr_t gl_uintptr_t
# endif
/* 7.18.1.5. Greatest-width integer types */
# undef INTPTR_MIN
# undef INTPTR_MAX
# undef UINTPTR_MAX
-# define INTPTR_MIN LONG_MIN
-# define INTPTR_MAX LONG_MAX
-# define UINTPTR_MAX ULONG_MAX
+# ifdef _WIN64
+# define INTPTR_MIN LLONG_MIN
+# define INTPTR_MAX LLONG_MAX
+# define UINTPTR_MAX ULLONG_MAX
+# else
+# define INTPTR_MIN LONG_MIN
+# define INTPTR_MAX LONG_MAX
+# define UINTPTR_MAX ULONG_MAX
+# endif
/* 7.18.2.5. Limits of greatest-width integer types */
_STDINT_MAX (@HAVE_SIGNED_WCHAR_T@, @BITSIZEOF_WCHAR_T@, 0@WCHAR_T_SUFFIX@)
/* wint_t limits */
-# undef WINT_MIN
-# undef WINT_MAX
-# if @HAVE_SIGNED_WINT_T@
-# define WINT_MIN \
- _STDINT_SIGNED_MIN (@BITSIZEOF_WINT_T@, 0@WINT_T_SUFFIX@)
-# else
-# define WINT_MIN \
- _STDINT_UNSIGNED_MIN (@BITSIZEOF_WINT_T@, 0@WINT_T_SUFFIX@)
+/* If gnulib's <wchar.h> or <wctype.h> overrides wint_t, @WINT_T_SUFFIX@ is not
+ accurate, therefore use the definitions from above. */
+# if !@GNULIB_OVERRIDES_WINT_T@
+# undef WINT_MIN
+# undef WINT_MAX
+# if @HAVE_SIGNED_WINT_T@
+# define WINT_MIN \
+ _STDINT_SIGNED_MIN (@BITSIZEOF_WINT_T@, 0@WINT_T_SUFFIX@)
+# else
+# define WINT_MIN \
+ _STDINT_UNSIGNED_MIN (@BITSIZEOF_WINT_T@, 0@WINT_T_SUFFIX@)
+# endif
+# define WINT_MAX \
+ _STDINT_MAX (@HAVE_SIGNED_WINT_T@, @BITSIZEOF_WINT_T@, 0@WINT_T_SUFFIX@)
# endif
-# define WINT_MAX \
- _STDINT_MAX (@HAVE_SIGNED_WINT_T@, @BITSIZEOF_WINT_T@, 0@WINT_T_SUFFIX@)
/* 7.18.4. Macros for integer constants */
# else
_GL_CXXALIAS_SYS (fclose, int, (FILE *stream));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (fclose);
+# endif
#elif defined GNULIB_POSIXCHECK
# undef fclose
/* Assume fclose is always declared. */
# else
_GL_CXXALIAS_SYS (fflush, int, (FILE *gl_stream));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (fflush);
+# endif
#elif defined GNULIB_POSIXCHECK
# undef fflush
/* Assume fflush is always declared. */
# else
_GL_CXXALIAS_SYS (fgetc, int, (FILE *stream));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (fgetc);
+# endif
#endif
#if @GNULIB_FGETS@
# else
_GL_CXXALIAS_SYS (fgets, char *, (char *s, int n, FILE *stream));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (fgets);
+# endif
#endif
#if @GNULIB_FOPEN@
# else
_GL_CXXALIAS_SYS (fopen, FILE *, (const char *filename, const char *mode));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (fopen);
+# endif
#elif defined GNULIB_POSIXCHECK
# undef fopen
/* Assume fopen is always declared. */
# else
_GL_CXXALIAS_SYS (fprintf, int, (FILE *fp, const char *format, ...));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (fprintf);
+# endif
#endif
#if !@GNULIB_FPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
# if !GNULIB_overrides_fprintf
# else
_GL_CXXALIAS_SYS (fputc, int, (int c, FILE *stream));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (fputc);
+# endif
#endif
#if @GNULIB_FPUTS@
# else
_GL_CXXALIAS_SYS (fputs, int, (const char *string, FILE *stream));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (fputs);
+# endif
#endif
#if @GNULIB_FREAD@
# else
_GL_CXXALIAS_SYS (fread, size_t, (void *ptr, size_t s, size_t n, FILE *stream));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (fread);
+# endif
#endif
#if @GNULIB_FREOPEN@
_GL_CXXALIAS_SYS (freopen, FILE *,
(const char *filename, const char *mode, FILE *stream));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (freopen);
+# endif
#elif defined GNULIB_POSIXCHECK
# undef freopen
/* Assume freopen is always declared. */
# else
_GL_CXXALIAS_SYS (fscanf, int, (FILE *stream, const char *format, ...));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (fscanf);
+# endif
#endif
# else
_GL_CXXALIAS_SYS (fseek, int, (FILE *fp, long offset, int whence));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (fseek);
+# endif
#endif
#if @GNULIB_FSEEKO@
# else
_GL_CXXALIAS_SYS (ftell, long, (FILE *fp));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (ftell);
+# endif
#endif
#if @GNULIB_FTELLO@
# define fwrite_unlocked rpl_fwrite_unlocked
# endif
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (fwrite);
+# endif
#endif
#if @GNULIB_GETC@
# else
_GL_CXXALIAS_SYS (getc, int, (FILE *stream));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (getc);
+# endif
#endif
#if @GNULIB_GETCHAR@
# else
_GL_CXXALIAS_SYS (getchar, int, (void));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (getchar);
+# endif
#endif
#if @GNULIB_GETDELIM@
# else
_GL_CXXALIAS_SYS (perror, void, (const char *string));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (perror);
+# endif
#elif defined GNULIB_POSIXCHECK
# undef perror
/* Assume perror is always declared. */
# else
_GL_CXXALIAS_SYS (printf, int, (const char *format, ...));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (printf);
+# endif
#endif
#if !@GNULIB_PRINTF_POSIX@ && defined GNULIB_POSIXCHECK
# if !GNULIB_overrides_printf
# else
_GL_CXXALIAS_SYS (putc, int, (int c, FILE *stream));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (putc);
+# endif
#endif
#if @GNULIB_PUTCHAR@
# else
_GL_CXXALIAS_SYS (putchar, int, (int c));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (putchar);
+# endif
#endif
#if @GNULIB_PUTS@
# else
_GL_CXXALIAS_SYS (puts, int, (const char *string));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (puts);
+# endif
#endif
#if @GNULIB_REMOVE@
# else
_GL_CXXALIAS_SYS (remove, int, (const char *name));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (remove);
+# endif
#elif defined GNULIB_POSIXCHECK
# undef remove
/* Assume remove is always declared. */
_GL_CXXALIAS_SYS (rename, int,
(const char *old_filename, const char *new_filename));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (rename);
+# endif
#elif defined GNULIB_POSIXCHECK
# undef rename
/* Assume rename is always declared. */
# else
_GL_CXXALIAS_SYS (scanf, int, (const char *format, ...));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (scanf);
+# endif
#endif
#if @GNULIB_SNPRINTF@
# else
_GL_CXXALIAS_SYS (sprintf, int, (char *str, const char *format, ...));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (sprintf);
+# endif
#elif defined GNULIB_POSIXCHECK
# undef sprintf
/* Assume sprintf is always declared. */
# else
_GL_CXXALIAS_SYS (tmpfile, FILE *, (void));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (tmpfile);
+# endif
#elif defined GNULIB_POSIXCHECK
# undef tmpfile
# if HAVE_RAW_DECL_TMPFILE
_GL_CXXALIAS_SYS_CAST (vfprintf, int,
(FILE *fp, const char *format, va_list args));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (vfprintf);
+# endif
#endif
#if !@GNULIB_VFPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
# if !GNULIB_overrides_vfprintf
and GCC's fixincludes did not change this to __gnuc_va_list. */
_GL_CXXALIAS_SYS_CAST (vprintf, int, (const char *format, va_list args));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (vprintf);
+# endif
#endif
#if !@GNULIB_VPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
# if !GNULIB_overrides_vprintf
_GL_CXXALIAS_SYS_CAST (vsprintf, int,
(char *str, const char *format, va_list args));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (vsprintf);
+# endif
#elif defined GNULIB_POSIXCHECK
# undef vsprintf
/* Assume vsprintf is always declared. */
# else
_GL_CXXALIAS_SYS (calloc, void *, (size_t nmemb, size_t size));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (calloc);
+# endif
#elif defined GNULIB_POSIXCHECK
# undef calloc
/* Assume calloc is always declared. */
# else
_GL_CXXALIAS_SYS (malloc, void *, (size_t size));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (malloc);
+# endif
#elif defined GNULIB_POSIXCHECK && !_GL_USE_STDLIB_ALLOC
# undef malloc
/* Assume malloc is always declared. */
# endif
_GL_CXXALIAS_SYS (mbtowc, int, (wchar_t *pwc, const char *s, size_t n));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (mbtowc);
+# endif
#elif defined GNULIB_POSIXCHECK
# undef mbtowc
# if HAVE_RAW_DECL_MBTOWC
# if !@HAVE_RANDOM@
_GL_FUNCDECL_SYS (srandom, void, (unsigned int seed));
# endif
-_GL_CXXALIAS_SYS (srandom, void, (unsigned int seed));
+/* Need to cast, because on FreeBSD, the first parameter is
+ unsigned long seed. */
+_GL_CXXALIAS_SYS_CAST (srandom, void, (unsigned int seed));
# endif
_GL_CXXALIASWARN (srandom);
#elif defined GNULIB_POSIXCHECK
(unsigned int seed, char *buf, size_t buf_size)
_GL_ARG_NONNULL ((2)));
# endif
-_GL_CXXALIAS_SYS (initstate, char *,
- (unsigned int seed, char *buf, size_t buf_size));
+/* Need to cast, because on FreeBSD, the first parameter is
+ unsigned long seed. */
+_GL_CXXALIAS_SYS_CAST (initstate, char *,
+ (unsigned int seed, char *buf, size_t buf_size));
# endif
_GL_CXXALIASWARN (initstate);
#elif defined GNULIB_POSIXCHECK
# if !@HAVE_SETSTATE@ || !@HAVE_DECL_SETSTATE@
_GL_FUNCDECL_SYS (setstate, char *, (char *arg_state) _GL_ARG_NONNULL ((1)));
# endif
-_GL_CXXALIAS_SYS (setstate, char *, (char *arg_state));
+/* Need to cast, because on Mac OS X 10.13, HP-UX, Solaris the first parameter
+ is const char *arg_state. */
+_GL_CXXALIAS_SYS_CAST (setstate, char *, (char *arg_state));
# endif
_GL_CXXALIASWARN (setstate);
#elif defined GNULIB_POSIXCHECK
# else
_GL_CXXALIAS_SYS (realloc, void *, (void *ptr, size_t size));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (realloc);
+# endif
#elif defined GNULIB_POSIXCHECK && !_GL_USE_STDLIB_ALLOC
# undef realloc
/* Assume realloc is always declared. */
# endif
_GL_CXXALIAS_SYS (strtod, double, (const char *str, char **endp));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (strtod);
+# endif
#elif defined GNULIB_POSIXCHECK
# undef strtod
# if HAVE_RAW_DECL_STRTOD
# else
_GL_CXXALIAS_SYS (wctomb, int, (char *s, wchar_t wc));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (wctomb);
+# endif
#endif
_GL_CXXALIASWARN1 (memchr, void *, (void *__s, int __c, size_t __n));
_GL_CXXALIASWARN1 (memchr, void const *,
(void const *__s, int __c, size_t __n));
-# else
+# elif __GLIBC__ >= 2
_GL_CXXALIASWARN (memchr);
# endif
#elif defined GNULIB_POSIXCHECK
# else
_GL_CXXALIAS_SYS (strncat, char *, (char *dest, const char *src, size_t n));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (strncat);
+# endif
#elif defined GNULIB_POSIXCHECK
# undef strncat
# if HAVE_RAW_DECL_STRNCAT
_GL_CXXALIASWARN1 (strpbrk, char *, (char *__s, char const *__accept));
_GL_CXXALIASWARN1 (strpbrk, char const *,
(char const *__s, char const *__accept));
-# else
+# elif __GLIBC__ >= 2
_GL_CXXALIASWARN (strpbrk);
# endif
# if defined GNULIB_POSIXCHECK
_GL_CXXALIASWARN1 (strstr, char *, (char *haystack, const char *needle));
_GL_CXXALIASWARN1 (strstr, const char *,
(const char *haystack, const char *needle));
-# else
+# elif __GLIBC__ >= 2
_GL_CXXALIASWARN (strstr);
# endif
#elif defined GNULIB_POSIXCHECK
# else
_GL_CXXALIAS_SYS (strerror, char *, (int));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (strerror);
+# endif
#elif defined GNULIB_POSIXCHECK
# undef strerror
/* Assume strerror is always declared. */
struct timeval *restrict));
_GL_CXXALIAS_RPL (select, int,
(int, fd_set *restrict, fd_set *restrict, fd_set *restrict,
- struct timeval *restrict));
+ timeval *restrict));
# else
_GL_CXXALIAS_SYS (select, int,
(int, fd_set *restrict, fd_set *restrict, fd_set *restrict,
- struct timeval *restrict));
+ timeval *restrict));
# endif
_GL_CXXALIASWARN (select);
#elif @HAVE_WINSOCK2_H@
# if defined __cplusplus && defined GNULIB_NAMESPACE
namespace GNULIB_NAMESPACE {
typedef ::timeval
-#undef timeval
+# undef timeval
timeval;
+# if @REPLACE_STRUCT_TIMEVAL@
+# define timeval rpl_timeval
+ typedef ::timeval timeval;
+# endif
}
# endif
#elif defined GNULIB_POSIXCHECK
# define _@GUARD_PREFIX@_TIME_H
+/* mingw's <time.h> provides the functions asctime_r, ctime_r, gmtime_r,
+ localtime_r only if <unistd.h> or <pthread.h> has been included before. */
+# if defined __MINGW32__
+# include <unistd.h>
+# endif
+
# @INCLUDE_NEXT@ @NEXT_TIME_H@
/* NetBSD 5.0 mis-defines NULL. */
# else
_GL_CXXALIAS_SYS (mktime, time_t, (struct tm *__tp));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (mktime);
+# endif
# endif
/* Convert TIMER to RESULT, assuming local time and UTC respectively. See
# else
_GL_CXXALIAS_SYS (localtime, struct tm *, (time_t const *__timer));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (localtime);
+# endif
# endif
# if 0 || @REPLACE_GMTIME@
# else
_GL_CXXALIAS_SYS (ctime, char *, (time_t const *__tp));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (ctime);
+# endif
# endif
/* Convert *TP to a date and time string. See
_GL_CXXALIAS_SYS (strftime, size_t, (char *__buf, size_t __bufsize,
const char *__fmt, const struct tm *__tp));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (strftime);
+# endif
# endif
# if defined _GNU_SOURCE && @GNULIB_TIME_RZ@ && ! @HAVE_TIMEZONE_T@
# if !@HAVE_GETDTABLESIZE@
_GL_FUNCDECL_SYS (getdtablesize, int, (void));
# endif
-_GL_CXXALIAS_SYS (getdtablesize, int, (void));
+/* Need to cast, because on AIX, the parameter list is
+ (...). */
+_GL_CXXALIAS_SYS_CAST (getdtablesize, int, (void));
# endif
_GL_CXXALIASWARN (getdtablesize);
#elif defined GNULIB_POSIXCHECK
dnl Some systems don't declare localtime_r() and gmtime_r() if _REENTRANT is
dnl not defined.
- AC_CHECK_DECLS([localtime_r], [], [], [[#include <time.h>]])
+ AC_CHECK_DECLS([localtime_r], [], [],
+ [[/* mingw's <time.h> provides the functions asctime_r, ctime_r,
+ gmtime_r, localtime_r only if <unistd.h> or <pthread.h> has
+ been included before. */
+ #if defined __MINGW32__
+ # include <unistd.h>
+ #endif
+ #include <time.h>
+ ]])
if test $ac_cv_have_decl_localtime_r = no; then
HAVE_DECL_LOCALTIME_R=0
fi
[gl_cv_time_r_posix],
[AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
- [[#include <time.h>]],
+ [[/* mingw's <time.h> provides the functions asctime_r, ctime_r,
+ gmtime_r, localtime_r only if <unistd.h> or <pthread.h> has
+ been included before. */
+ #if defined __MINGW32__
+ # include <unistd.h>
+ #endif
+ #include <time.h>
+ ]],
[[/* We don't need to append 'restrict's to the argument types,
even though the POSIX signature has the 'restrict's,
since C99 says they can't affect type compatibility. */
fi
else
HAVE_LOCALTIME_R=0
+ dnl On mingw, localtime_r() is defined as an inline function; use through a
+ dnl direct function call works but the use as a function pointer leads to a
+ dnl link error.
+ AC_CACHE_CHECK([whether localtime_r exists as an inline function],
+ [gl_cv_func_localtime_r_inline],
+ [AC_LINK_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[/* mingw's <time.h> provides the functions asctime_r, ctime_r,
+ gmtime_r, localtime_r only if <unistd.h> or <pthread.h> has
+ been included before. */
+ #if defined __MINGW32__
+ # include <unistd.h>
+ #endif
+ #include <time.h>
+ ]],
+ [[time_t a;
+ struct tm r;
+ localtime_r (&a, &r);
+ ]])
+ ],
+ [gl_cv_func_localtime_r_inline=yes],
+ [gl_cv_func_localtime_r_inline=no])
+ ])
+ if test $gl_cv_func_localtime_r_inline = yes; then
+ REPLACE_LOCALTIME_R=1
+ fi
fi
])