New upstream version 2.3.4
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556 changed files with 90432 additions and 53391 deletions
114
gl/m4/time_h.m4
114
gl/m4/time_h.m4
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@ -1,8 +1,8 @@
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# Configure a more-standard replacement for <time.h>.
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# Copyright (C) 2000-2001, 2003-2007, 2009-2013 Free Software Foundation, Inc.
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# Copyright (C) 2000-2001, 2003-2007, 2009-2023 Free Software Foundation, Inc.
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# serial 7
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# serial 20
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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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@ -10,23 +10,42 @@
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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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AC_DEFUN_ONCE([gl_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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dnl Ensure to expand the default settings once only, before all statements
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dnl that occur in other macros.
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AC_REQUIRE([gl_TIME_H_DEFAULTS])
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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_NEXT_HEADERS([time.h])
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AC_REQUIRE([gl_CHECK_TYPE_STRUCT_TIMESPEC])
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dnl Check for declarations of anything we want to poison if the
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dnl corresponding gnulib module is not in use.
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gl_WARN_ON_USE_PREPARE([[
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#include <time.h>
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]], [asctime_r ctime_r])
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AC_REQUIRE([AC_C_RESTRICT])
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AC_CACHE_CHECK([for TIME_UTC in <time.h>],
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[gl_cv_time_h_has_TIME_UTC],
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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 int x = TIME_UTC; x++;]])],
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[gl_cv_time_h_has_TIME_UTC=yes],
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[gl_cv_time_h_has_TIME_UTC=no])])
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if test $gl_cv_time_h_has_TIME_UTC = yes; then
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TIME_H_DEFINES_TIME_UTC=1
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else
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TIME_H_DEFINES_TIME_UTC=0
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fi
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AC_SUBST([TIME_H_DEFINES_TIME_UTC])
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])
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dnl Check whether 'struct timespec' is declared
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dnl in time.h, sys/time.h, or pthread.h.
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dnl in time.h, sys/time.h, pthread.h, or unistd.h.
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AC_DEFUN([gl_CHECK_TYPE_STRUCT_TIMESPEC],
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[
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@ -44,6 +63,7 @@ AC_DEFUN([gl_CHECK_TYPE_STRUCT_TIMESPEC],
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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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PTHREAD_H_DEFINES_STRUCT_TIMESPEC=0
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UNISTD_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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@ -70,40 +90,94 @@ AC_DEFUN([gl_CHECK_TYPE_STRUCT_TIMESPEC],
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[gl_cv_sys_struct_timespec_in_pthread_h=no])])
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if test $gl_cv_sys_struct_timespec_in_pthread_h = yes; then
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PTHREAD_H_DEFINES_STRUCT_TIMESPEC=1
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else
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AC_CACHE_CHECK([for struct timespec in <unistd.h>],
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[gl_cv_sys_struct_timespec_in_unistd_h],
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[AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM(
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[[#include <unistd.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_unistd_h=yes],
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[gl_cv_sys_struct_timespec_in_unistd_h=no])])
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if test $gl_cv_sys_struct_timespec_in_unistd_h = yes; then
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UNISTD_H_DEFINES_STRUCT_TIMESPEC=1
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fi
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fi
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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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AC_SUBST([PTHREAD_H_DEFINES_STRUCT_TIMESPEC])
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AC_SUBST([UNISTD_H_DEFINES_STRUCT_TIMESPEC])
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])
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# gl_TIME_MODULE_INDICATOR([modulename])
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# sets the shell variable that indicates the presence of the given module
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# to a C preprocessor expression that will evaluate to 1.
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# This macro invocation must not occur in macros that are AC_REQUIREd.
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AC_DEFUN([gl_TIME_MODULE_INDICATOR],
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[
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dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
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AC_REQUIRE([gl_HEADER_TIME_H_DEFAULTS])
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dnl Ensure to expand the default settings once only.
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gl_TIME_H_REQUIRE_DEFAULTS
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gl_MODULE_INDICATOR_SET_VARIABLE([$1])
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dnl Define it also as a C macro, for the benefit of the unit tests.
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gl_MODULE_INDICATOR_FOR_TESTS([$1])
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])
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AC_DEFUN([gl_HEADER_TIME_H_DEFAULTS],
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# Initializes the default values for AC_SUBSTed shell variables.
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# This macro must not be AC_REQUIREd. It must only be invoked, and only
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# outside of macros or in macros that are not AC_REQUIREd.
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AC_DEFUN([gl_TIME_H_REQUIRE_DEFAULTS],
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[
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m4_defun(GL_MODULE_INDICATOR_PREFIX[_TIME_H_MODULE_INDICATOR_DEFAULTS], [
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_CTIME])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MKTIME])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LOCALTIME])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_NANOSLEEP])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRFTIME])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STRPTIME])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_TIMEGM])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_TIMESPEC_GET])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_TIMESPEC_GETRES])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_TIME_R])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_TIME_RZ])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_TZSET])
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dnl Support Microsoft deprecated alias function names by default.
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_TZSET], [1])
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])
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m4_require(GL_MODULE_INDICATOR_PREFIX[_TIME_H_MODULE_INDICATOR_DEFAULTS])
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AC_REQUIRE([gl_TIME_H_DEFAULTS])
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])
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AC_DEFUN([gl_TIME_H_DEFAULTS],
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[
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GNULIB_MKTIME=0; AC_SUBST([GNULIB_MKTIME])
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GNULIB_NANOSLEEP=0; AC_SUBST([GNULIB_NANOSLEEP])
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GNULIB_STRPTIME=0; AC_SUBST([GNULIB_STRPTIME])
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GNULIB_TIMEGM=0; AC_SUBST([GNULIB_TIMEGM])
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GNULIB_TIME_R=0; AC_SUBST([GNULIB_TIME_R])
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dnl Assume proper GNU behavior unless another module says otherwise.
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HAVE_DECL_LOCALTIME_R=1; AC_SUBST([HAVE_DECL_LOCALTIME_R])
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HAVE_NANOSLEEP=1; AC_SUBST([HAVE_NANOSLEEP])
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HAVE_STRPTIME=1; AC_SUBST([HAVE_STRPTIME])
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HAVE_TIMEGM=1; AC_SUBST([HAVE_TIMEGM])
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HAVE_TIMESPEC_GET=1; AC_SUBST([HAVE_TIMESPEC_GET])
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HAVE_TIMESPEC_GETRES=1; AC_SUBST([HAVE_TIMESPEC_GETRES])
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dnl Even GNU libc does not have timezone_t yet.
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HAVE_TIMEZONE_T=0; AC_SUBST([HAVE_TIMEZONE_T])
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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_CTIME=GNULIB_PORTCHECK; AC_SUBST([REPLACE_CTIME])
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REPLACE_LOCALTIME_R=GNULIB_PORTCHECK; AC_SUBST([REPLACE_LOCALTIME_R])
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REPLACE_MKTIME=GNULIB_PORTCHECK; AC_SUBST([REPLACE_MKTIME])
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REPLACE_NANOSLEEP=GNULIB_PORTCHECK; AC_SUBST([REPLACE_NANOSLEEP])
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REPLACE_STRFTIME=GNULIB_PORTCHECK; AC_SUBST([REPLACE_STRFTIME])
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REPLACE_TIMEGM=GNULIB_PORTCHECK; AC_SUBST([REPLACE_TIMEGM])
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REPLACE_TZSET=GNULIB_PORTCHECK; AC_SUBST([REPLACE_TZSET])
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dnl Hack so that the time module doesn't depend on the sys_time module.
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dnl First, default GNULIB_GETTIMEOFDAY to 0 if sys_time is absent.
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: ${GNULIB_GETTIMEOFDAY=0}; AC_SUBST([GNULIB_GETTIMEOFDAY])
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dnl Second, it's OK to not use GNULIB_PORTCHECK for REPLACE_GMTIME
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dnl and REPLACE_LOCALTIME, as portability to Solaris 2.6 and earlier
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dnl is no longer a big deal.
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REPLACE_GMTIME=0; AC_SUBST([REPLACE_GMTIME])
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REPLACE_LOCALTIME=0; AC_SUBST([REPLACE_LOCALTIME])
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])
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