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Update from Gnulib

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This incorporates:
2018-03-28 time_rz: fix workaround for Mac OS X 10.6 infloop
* m4/time_rz.m4: Copy from Gnulib.
This commit is contained in:
Paul Eggert 2018-03-28 13:14:07 -07:00
parent b61b3c804c
commit e9bfd114a5
1 changed files with 5 additions and 4 deletions
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9
m4/time_rz.m4
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@ -13,8 +13,8 @@ AC_DEFUN([gl_TIME_RZ],
AC_REQUIRE([gl_HEADER_TIME_H_DEFAULTS])
AC_REQUIRE([AC_STRUCT_TIMEZONE])
# Mac OS X 10.6 loops forever with some time_t values less
# than -67768038400665599. See Bug#27706, Bug#27736, and
# Mac OS X 10.6 loops forever with some time_t values.
# See Bug#27706, Bug#27736, and
# https://lists.gnu.org/r/bug-gnulib/2017-07/msg00142.html
AC_CACHE_CHECK([whether localtime loops forever near extrema],
[gl_cv_func_localtime_infloop_bug],
@ -26,7 +26,7 @@ AC_DEFUN([gl_TIME_RZ],
#include <unistd.h>
#include <time.h>
]], [[
time_t t = -67768038400665600;
time_t t = -67768038400666600;
struct tm *tm;
char *tz = getenv ("TZ");
if (! (tz && strcmp (tz, "QQQ0") == 0))
@ -36,7 +36,8 @@ AC_DEFUN([gl_TIME_RZ],
/* Use TM and *TM to suppress over-optimization. */
return tm && tm->tm_isdst;
]])],
[TZ=QQQ0 ./conftest$EXEEXT || gl_cv_func_localtime_infloop_bug=yes],
[(TZ=QQQ0 ./conftest$EXEEXT) >/dev/null 2>&1 ||
gl_cv_func_localtime_infloop_bug=yes],
[],
[gl_cv_func_localtime_infloop_bug="guessing no"])])
if test "$gl_cv_func_localtime_infloop_bug" = yes; then