Mercurial > gnulib
view m4/timer_time.m4 @ 40177:dcd889592b62
dtoastr,ftoastr,ldtoastr: port to c-strtod changes
Decouple these modules from c-strtod. Nowadays it’s reasonable to
assume the C99 signatures for strtod and strtold. Programs that
require stricter adherence to C99 should also use the strtod and
strtold modules as needed, and we no longer need the
HAVE_C99_STRTOLD macro.
* NEWS: Mention this.
* lib/ftoastr.c (STRTOF) [LENGTH == 3]: Assume strtold.
* m4/c-strtod.m4 (gl_C_STRTOLD): Do not define HAVE_C99_STRTOLD.
* modules/dtoastr, modules/ftoastr, modules/ldtoastr:
(Files): Remove m4/c-strtod.m4.
(configure.ac): Do not require gl_C99_STRTOLD, which no longer
exists.
author | Paul Eggert <eggert@cs.ucla.edu> |
---|---|
date | Sat, 02 Feb 2019 13:01:55 -0800 |
parents | b06060465f09 |
children |
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# timer_time.m4 serial 3 dnl Copyright (C) 2011-2019 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 timer_settime, and set LIB_TIMER_TIME. AC_DEFUN([gl_TIMER_TIME], [ dnl Based on clock_time.m4. See details there. AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) dnl Test whether the gnulib module 'threadlib' is in use. dnl Some packages like Emacs use --avoid=threadlib. dnl Write the symbol in such a way that it does not cause 'aclocal' to pick dnl the threadlib.m4 file that is installed in $PREFIX/share/aclocal/. m4_ifdef([gl_][THREADLIB], [AC_REQUIRE([gl_][THREADLIB])]) LIB_TIMER_TIME= AC_SUBST([LIB_TIMER_TIME]) gl_saved_libs=$LIBS AC_SEARCH_LIBS([timer_settime], [rt posix4], [test "$ac_cv_search_timer_settime" = "none required" || LIB_TIMER_TIME=$ac_cv_search_timer_settime]) m4_ifdef([gl_][THREADLIB], [dnl GLIBC uses threads to emulate posix timers when kernel support dnl is not available (like Linux < 2.6 or when used with kFreeBSD) dnl Now the pthread lib is linked automatically in the normal case, dnl but when linking statically, it needs to be explicitly specified. AC_EGREP_CPP([Thread], [#include <features.h> #ifdef __GNU_LIBRARY__ #if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2) || (__GLIBC__ > 2)) \ && !(__UCLIBC__ && __HAS_NO_THREADS__) Thread emulation available #endif #endif ], [LIB_TIMER_TIME="$LIB_TIMER_TIME $LIBMULTITHREAD"])]) AC_CHECK_FUNCS([timer_settime]) LIBS=$gl_saved_libs ])