Imported Upstream version 1.4.13+git200906171200
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362 changed files with 34110 additions and 10773 deletions
74
gl/m4/time_h.m4
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74
gl/m4/time_h.m4
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# Configure a more-standard replacement for <time.h>.
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# Copyright (C) 2000, 2001, 2003, 2004, 2005, 2006, 2007 Free Software
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# Foundation, Inc.
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# This file is free software; the Free Software Foundation
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# gives unlimited permission to copy and/or distribute it,
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# with or without modifications, as long as this notice is preserved.
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# Written by Paul Eggert and Jim Meyering.
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AC_DEFUN([gl_HEADER_TIME_H],
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[
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dnl Use AC_REQUIRE here, so that the default behavior below is expanded
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dnl once only, before all statements that occur in other macros.
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AC_REQUIRE([gl_HEADER_TIME_H_BODY])
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])
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AC_DEFUN([gl_HEADER_TIME_H_BODY],
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[
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AC_REQUIRE([AC_C_RESTRICT])
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AC_REQUIRE([gl_HEADER_TIME_H_DEFAULTS])
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gl_CHECK_NEXT_HEADERS([time.h])
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AC_REQUIRE([gl_CHECK_TYPE_STRUCT_TIMESPEC])
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])
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AC_DEFUN([gl_HEADER_TIME_H_DEFAULTS],
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[
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dnl If another module says to replace or to not replace, do that.
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dnl Otherwise, replace only if someone compiles with -DGNULIB_PORTCHECK;
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dnl this lets maintainers check for portability.
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REPLACE_LOCALTIME_R=GNULIB_PORTCHECK; AC_SUBST([REPLACE_LOCALTIME_R])
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REPLACE_NANOSLEEP=GNULIB_PORTCHECK; AC_SUBST([REPLACE_NANOSLEEP])
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REPLACE_STRPTIME=GNULIB_PORTCHECK; AC_SUBST([REPLACE_STRPTIME])
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REPLACE_TIMEGM=GNULIB_PORTCHECK; AC_SUBST([REPLACE_TIMEGM])
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])
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dnl Define HAVE_STRUCT_TIMESPEC if `struct timespec' is declared
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dnl in time.h or sys/time.h.
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AC_DEFUN([gl_CHECK_TYPE_STRUCT_TIMESPEC],
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[
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AC_CHECK_HEADERS_ONCE([sys/time.h])
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AC_CACHE_CHECK([for struct timespec in <time.h>],
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[gl_cv_sys_struct_timespec_in_time_h],
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[AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM(
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[[#include <time.h>
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]],
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[[static struct timespec x; x.tv_sec = x.tv_nsec;]])],
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[gl_cv_sys_struct_timespec_in_time_h=yes],
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[gl_cv_sys_struct_timespec_in_time_h=no])])
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TIME_H_DEFINES_STRUCT_TIMESPEC=0
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SYS_TIME_H_DEFINES_STRUCT_TIMESPEC=0
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if test $gl_cv_sys_struct_timespec_in_time_h = yes; then
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TIME_H_DEFINES_STRUCT_TIMESPEC=1
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else
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AC_CACHE_CHECK([for struct timespec in <sys/time.h>],
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[gl_cv_sys_struct_timespec_in_sys_time_h],
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[AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM(
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[[#include <sys/time.h>
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]],
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[[static struct timespec x; x.tv_sec = x.tv_nsec;]])],
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[gl_cv_sys_struct_timespec_in_sys_time_h=yes],
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[gl_cv_sys_struct_timespec_in_sys_time_h=no])])
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if test $gl_cv_sys_struct_timespec_in_sys_time_h = yes; then
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SYS_TIME_H_DEFINES_STRUCT_TIMESPEC=1
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fi
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fi
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AC_SUBST([TIME_H_DEFINES_STRUCT_TIMESPEC])
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AC_SUBST([SYS_TIME_H_DEFINES_STRUCT_TIMESPEC])
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])
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