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| author | Jim Meyering <jim@meyering.net> | 2000-04-03 06:24:20 +0000 |
|---|---|---|
| committer | Jim Meyering <jim@meyering.net> | 2000-04-03 06:24:20 +0000 |
| commit | 096f314e1d6523ccd56ecf5d9897943e3f695433 (patch) | |
| tree | f324835dd4d196dbbe265addab28c8713587052f /m4/strftime.m4 | |
| parent | f22bce320b8f1881543084850cda294c33952bed (diff) | |
| download | coreutils-096f314e1d6523ccd56ecf5d9897943e3f695433.tar.xz | |
(jm_FUNC_GNU_STRFTIME): Set TZ environment
variable in the shell rather than using putenv, which isn't
portable. This avoids the configure-time inter-test dependency
on the potentially-renamed putenv function.
Diffstat (limited to 'm4/strftime.m4')
| -rw-r--r-- | m4/strftime.m4 | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/m4/strftime.m4 b/m4/strftime.m4 index 527569415..974f2bf00 100644 --- a/m4/strftime.m4 +++ b/m4/strftime.m4 @@ -1,4 +1,4 @@ -#serial 9 +#serial 10 dnl This macro is intended to be used solely in this file. dnl These are the prerequisite macros for GNU's strftime.c replacement. @@ -35,7 +35,11 @@ AC_DEFUN(jm_FUNC_GNU_STRFTIME, AC_REQUIRE([AC_HEADER_STDC])dnl AC_CHECK_HEADERS(sys/time.h) AC_CACHE_CHECK([for working GNU strftime], jm_cv_func_working_gnu_strftime, - [AC_TRY_RUN( + [# Set TZ to GMT0 to make strftime give consistent results during the test. + ac_save_TZ="${TZ-GMT0}" + TZ=GMT0 + export TZ + AC_TRY_RUN( [ /* Ulrich Drepper provided parts of the test program. */ #if STDC_HEADERS # include <stdlib.h> @@ -76,10 +80,6 @@ main () time_t t = 738367; /* Fri Jan 9 13:06:07 1970 */ tm = gmtime (&t); - /* This is necessary to make strftime give consistent zone strings and - e.g., seconds since the epoch (%s). */ - putenv ("TZ=GMT0"); - #undef CMP #define CMP(Fmt, Expected) n_fail += compare ((Fmt), tm, (Expected)) @@ -138,6 +138,8 @@ main () jm_cv_func_working_gnu_strftime=no, dnl When crosscompiling, assume strftime is missing or broken. jm_cv_func_working_gnu_strftime=no) + dnl If TZ wasn't set before, this sets it to GMT0. No real harm done. + TZ="$ac_save_TZ" ]) if test $jm_cv_func_working_gnu_strftime = no; then AC_SUBST(LIBOBJS) |