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* lib/localtime-buffer.h: New file. * lib/localtime-buffer.c: New file, extracted from lib/gettimeofday.c. * lib/time.in.h (tzset): New declaration. (localtime, gmtime): Don't test GNULIB_GETTIMEOFDAY. * lib/tzset.c: New file, extracted from lib/gettimeofday.c. * lib/gettimeofday.c: Include localtime-buffer.h. Remove code that was moved to lib/localtime-buffer.c or lib/tzset.c. * m4/localtime-buffer.m4: New file. * m4/time_h.m4 (gl_HEADER_TIME_H_DEFAULTS): Initialize GNULIB_TZSET, HAVE_TZSET, REPLACE_TZSET. * m4/tzset.m4 (gl_FUNC_TZSET): Move code from m4/gettimeofday.m4 to here, with modifications. Set HAVE_TZSET, REPLACE_TZSET. Invoke gl_LOCALTIME_BUFFER_NEEDED. (gl_FUNC_TZSET_CLOBBER): Don't require gl_HEADER_SYS_TIME_H; not needed since 2007-01-18. * m4/gettimeofday.m4 (gl_FUNC_GETTIMEOFDAY): Remove code that deals with tzset. (gl_FUNC_GETTIMEOFDAY_CLOBBER): Require gl_LOCALTIME_BUFFER_DEFAULTS. Invoke gl_LOCALTIME_BUFFER_NEEDED instead of gl_GETTIMEOFDAY_REPLACE_LOCALTIME. (gl_GETTIMEOFDAY_REPLACE_LOCALTIME): Remove macro. * modules/localtime-buffer: New file. * modules/time (Depends-on): Remove 'gettimeofday'. (Makefile.am): Substitute GNULIB_TZSET, HAVE_TZSET, REPLACE_TZSET. Don't substitute GNULIB_GETTIMEOFDAY. * modules/tzset (Description): Enable hyperlink to POSIX spec. (Files): Add lib/tzset.c. (Depends-on): Remove gettimeofday. Add localtime-buffer, time. (configure.ac): Arrange to conditionally compile lib/tzset.c. Invoke gl_TIME_MODULE_INDICATOR. * modules/gettimeofday (Depends-on): Add localtime-buffer.
28 lines
1.0 KiB
C
28 lines
1.0 KiB
C
/* Provide access to the last buffer returned by localtime() or gmtime().
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Copyright (C) 2001-2003, 2005-2007, 2009-2017 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, see <http://www.gnu.org/licenses/>. */
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/* written by Jim Meyering */
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#include <time.h>
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#if GETTIMEOFDAY_CLOBBERS_LOCALTIME || TZSET_CLOBBERS_LOCALTIME
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/* The address of the last buffer returned by localtime() or gmtime(). */
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extern struct tm *localtime_buffer_addr;
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#endif
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