Mercurial > gnulib
view m4/readlinkat.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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# serial 5 # See if we need to provide readlinkat replacement. dnl Copyright (C) 2009-2019 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. # Written by Eric Blake. AC_DEFUN([gl_FUNC_READLINKAT], [ AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) AC_CHECK_FUNCS_ONCE([readlinkat]) AC_REQUIRE([gl_FUNC_READLINK]) if test $ac_cv_func_readlinkat = no; then HAVE_READLINKAT=0 else AC_CACHE_CHECK([whether readlinkat signature is correct], [gl_cv_decl_readlinkat_works], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#include <unistd.h> /* Check whether original declaration has correct type. */ ssize_t readlinkat (int, char const *, char *, size_t);]])], [gl_cv_decl_readlinkat_works=yes], [gl_cv_decl_readlinkat_works=no])]) # Assume readinkat has the same trailing slash bug as readlink, # as is the case on Mac Os X 10.10 case "$gl_cv_func_readlink_works" in *yes) if test "$gl_cv_decl_readlinkat_works" != yes; then REPLACE_READLINKAT=1 fi ;; *) REPLACE_READLINKAT=1 ;; esac fi ])