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Import the gethrxtime module from gnulib.

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gnulib 9e117ae955a5c6a0406140e62b76c3ef50e3bc2b.

* lib/gethrxtime.c, lib/gethrxtime.h, lib/gettime.c, lib/timespec.c,
lib/timespec.h, lib/xtime.h, m4/clock_time.m4, m4/gethrxtime.m4,
m4/gettime.m4, m4/timespec.m4: New files.
* m4/gnulib-cache.m4, m4/gnulib-comp.m4, lib/Makefile.am: Adjust.
This commit is contained in:
Alexandre Duret-Lutz 2012-10-08 21:59:59 +02:00
parent d7e8684d38
commit 756319739b
13 changed files with 510 additions and 2 deletions
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31
m4/clock_time.m4 Normal file
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# clock_time.m4 serial 10
dnl Copyright (C) 2002-2006, 2009-2012 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
# Check for clock_gettime and clock_settime, and set LIB_CLOCK_GETTIME.
# For a program named, say foo, you should add a line like the following
# in the corresponding Makefile.am file:
# foo_LDADD = $(LDADD) $(LIB_CLOCK_GETTIME)
AC_DEFUN([gl_CLOCK_TIME],
[
dnl Persuade glibc and Solaris <time.h> to declare these functions.
AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
# Solaris 2.5.1 needs -lposix4 to get the clock_gettime function.
# Solaris 7 prefers the library name -lrt to the obsolescent name -lposix4.
# Save and restore LIBS so e.g., -lrt, isn't added to it. Otherwise, *all*
# programs in the package would end up linked with that potentially-shared
# library, inducing unnecessary run-time overhead.
LIB_CLOCK_GETTIME=
AC_SUBST([LIB_CLOCK_GETTIME])
gl_saved_libs=$LIBS
AC_SEARCH_LIBS([clock_gettime], [rt posix4],
[test "$ac_cv_search_clock_gettime" = "none required" ||
LIB_CLOCK_GETTIME=$ac_cv_search_clock_gettime])
AC_CHECK_FUNCS([clock_gettime clock_settime])
LIBS=$gl_saved_libs
])