diff options
Diffstat (limited to 'Build/source/utils/texinfo/gnulib/m4/gettimeofday.m4')
-rw-r--r-- | Build/source/utils/texinfo/gnulib/m4/gettimeofday.m4 | 101 |
1 files changed, 0 insertions, 101 deletions
diff --git a/Build/source/utils/texinfo/gnulib/m4/gettimeofday.m4 b/Build/source/utils/texinfo/gnulib/m4/gettimeofday.m4 deleted file mode 100644 index b9bbb1081bc..00000000000 --- a/Build/source/utils/texinfo/gnulib/m4/gettimeofday.m4 +++ /dev/null @@ -1,101 +0,0 @@ -#serial 11 - -# Copyright (C) 2001, 2002, 2003, 2005, 2007 Free Software Foundation, Inc. -# This file is free software; the Free Software Foundation -# gives unlimited permission to copy and/or distribute it, -# with or without modifications, as long as this notice is preserved. - -dnl From Jim Meyering. - -AC_DEFUN([gl_FUNC_GETTIMEOFDAY], -[ - AC_REQUIRE([AC_C_RESTRICT]) - AC_REQUIRE([gl_HEADER_SYS_TIME_H]) - AC_CHECK_FUNCS_ONCE([gettimeofday]) - - AC_CACHE_CHECK([for gettimeofday with POSIX signature], - [gl_cv_func_gettimeofday_posix_signature], - [AC_COMPILE_IFELSE( - [AC_LANG_PROGRAM( - [[#include <sys/time.h> - struct timeval c; - ]], - [[ - int (*f) (struct timeval *restrict, void *restrict) = gettimeofday; - int x = f (&c, 0); - return !(x | c.tv_sec | c.tv_usec); - ]])], - [gl_cv_func_gettimeofday_posix_signature=yes], - [gl_cv_func_gettimeofday_posix_signature=no])]) - - gl_FUNC_GETTIMEOFDAY_CLOBBER - - if test $gl_cv_func_gettimeofday_posix_signature != yes; then - REPLACE_GETTIMEOFDAY=1 - SYS_TIME_H=sys/time.h - if test $gl_cv_func_gettimeofday_clobber != yes; then - AC_LIBOBJ(gettimeofday) - gl_PREREQ_GETTIMEOFDAY - fi - fi -]) - - -dnl See if gettimeofday clobbers the static buffer that localtime uses -dnl for its return value. The gettimeofday function from Mac OS X 10.0.4 -dnl (i.e., Darwin 1.3.7) has this problem. -dnl -dnl If it does, then arrange to use gettimeofday and localtime only via -dnl the wrapper functions that work around the problem. - -AC_DEFUN([gl_FUNC_GETTIMEOFDAY_CLOBBER], -[ - AC_REQUIRE([gl_HEADER_SYS_TIME_H]) - - AC_CACHE_CHECK([whether gettimeofday clobbers localtime buffer], - [gl_cv_func_gettimeofday_clobber], - [AC_RUN_IFELSE( - [AC_LANG_PROGRAM( - [[#include <string.h> - #include <sys/time.h> - #include <time.h> - #include <stdlib.h> - ]], - [[ - time_t t = 0; - struct tm *lt; - struct tm saved_lt; - struct timeval tv; - lt = localtime (&t); - saved_lt = *lt; - gettimeofday (&tv, NULL); - return memcmp (lt, &saved_lt, sizeof (struct tm)) != 0; - ]])], - [gl_cv_func_gettimeofday_clobber=no], - [gl_cv_func_gettimeofday_clobber=yes], - dnl When crosscompiling, assume it is broken. - [gl_cv_func_gettimeofday_clobber=yes])]) - - if test $gl_cv_func_gettimeofday_clobber = yes; then - REPLACE_GETTIMEOFDAY=1 - SYS_TIME_H=sys/time.h - gl_GETTIMEOFDAY_REPLACE_LOCALTIME - AC_DEFINE([GETTIMEOFDAY_CLOBBERS_LOCALTIME], 1, - [Define if gettimeofday clobbers the localtime buffer.]) - fi -]) - -AC_DEFUN([gl_GETTIMEOFDAY_REPLACE_LOCALTIME], [ - AC_LIBOBJ(gettimeofday) - gl_PREREQ_GETTIMEOFDAY - AC_DEFINE([gmtime], [rpl_gmtime], - [Define to rpl_gmtime if the replacement function should be used.]) - AC_DEFINE([localtime], [rpl_localtime], - [Define to rpl_localtime if the replacement function should be used.]) -]) - -# Prerequisites of lib/gettimeofday.c. -AC_DEFUN([gl_PREREQ_GETTIMEOFDAY], [ - AC_CHECK_HEADERS([sys/timeb.h]) - AC_CHECK_FUNCS([_ftime]) -]) |