Mercurial > gnulib
view m4/lock.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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# lock.m4 serial 14 dnl Copyright (C) 2005-2019 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. dnl From Bruno Haible. AC_DEFUN([gl_LOCK], [ AC_REQUIRE([gl_THREADLIB]) if test "$gl_threads_api" = posix; then # OSF/1 4.0 and Mac OS X 10.1 lack the pthread_rwlock_t type and the # pthread_rwlock_* functions. has_rwlock=false AC_CHECK_TYPE([pthread_rwlock_t], [has_rwlock=true AC_DEFINE([HAVE_PTHREAD_RWLOCK], [1], [Define if the POSIX multithreading library has read/write locks.])], [], [#include <pthread.h>]) if $has_rwlock; then gl_PTHREAD_RWLOCK_RDLOCK_PREFER_WRITER fi # glibc defines PTHREAD_MUTEX_RECURSIVE as enum, not as a macro. AC_COMPILE_IFELSE([ AC_LANG_PROGRAM( [[#include <pthread.h>]], [[ #if __FreeBSD__ == 4 error "No, in FreeBSD 4.0 recursive mutexes actually don't work." #elif (defined __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ \ && __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 1070) error "No, in Mac OS X < 10.7 recursive mutexes actually don't work." #else int x = (int)PTHREAD_MUTEX_RECURSIVE; return !x; #endif ]])], [AC_DEFINE([HAVE_PTHREAD_MUTEX_RECURSIVE], [1], [Define if the <pthread.h> defines PTHREAD_MUTEX_RECURSIVE.])]) fi gl_PREREQ_LOCK ]) # Prerequisites of lib/glthread/lock.c. AC_DEFUN([gl_PREREQ_LOCK], [:])