gettimeofday: port recent C++ fix to Emacs

[gnulib.git] / ChangeLog

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+2013-12-17  Paul Eggert  <eggert@cs.ucla.edu>
+
+       gettimeofday: port recent C++ fix to Emacs
+       Without this further patch, Emacs won't build due to
+       the portcheck failing.  Also, this simplifies the patch a bit.
+       * lib/time.in.h (localtime, gmtime): Don't replace unless
+       GNULIB_GETTIMEOFDAY.  Treat them more like mktime.
+       * lib/time.in.h (localtime, gmtime):
+       * m4/gettimeofday.m4 (gl_GETTIMEOFDAY_REPLACE_LOCALTIME):
+       * m4/time_h.m4 (gl_HEADER_TIME_H_DEFAULTS):
+       * modules/time (time.h):
+       Don't worry about about the possibility of localtime and gmtime
+       being absent; they're present in all C libraries we know about.
+       * m4/time_h.m4 (gl_HEADER_TIME_H_DEFAULTS):
+       Don't assume sys_time is present and has been initialized.
+       Instead, use a hack that should work even if it hasn't been.
+       Don't use a portcheck for gmtime or localtime; this supports
+       the hack.
+       * modules/time (time.h): Substitute GNULIB_GETTIMEOFDAY.
+
 2013-12-17  John W. Eaton  <jwe@gnu.org>
 
        gettimeofday: fix C++ crosscompilation