Mercurial > gnulib
view m4/iswblank.m4 @ 40231:9b3c79fdfe0b
strtod: fix clash with strtold
Problem reported for RHEL 5 by Jesse Caldwell (Bug#34817).
* lib/strtod.c (compute_minus_zero, minus_zero):
Simplify by remving the macro / external variable,
and having just a function. User changed. This avoids
the need for an external variable that might clash.
author | Paul Eggert <eggert@cs.ucla.edu> |
---|---|
date | Mon, 11 Mar 2019 16:40:29 -0700 |
parents | b06060465f09 |
children |
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# iswblank.m4 serial 4 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. AC_DEFUN([gl_FUNC_ISWBLANK], [ AC_REQUIRE([gl_WCTYPE_H_DEFAULTS]) AC_REQUIRE([gl_WCTYPE_H]) dnl Persuade glibc <wctype.h> to declare iswblank(). AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) AC_CHECK_FUNCS_ONCE([iswblank]) AC_CHECK_DECLS([iswblank], , , [[ /* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before <wchar.h>. BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be included before <wchar.h>. */ #include <stddef.h> #include <stdio.h> #include <time.h> #include <wchar.h> #include <wctype.h> ]]) if test $ac_cv_func_iswblank = no; then HAVE_ISWBLANK=0 if test $ac_cv_have_decl_iswblank = yes; then REPLACE_ISWBLANK=1 fi fi if test $HAVE_ISWCNTRL = 0 || test $REPLACE_ISWCNTRL = 1; then dnl Redefine all of iswcntrl, ..., towupper in <wctype.h>. : else if test $HAVE_ISWBLANK = 0 || test $REPLACE_ISWBLANK = 1; then dnl Redefine only iswblank. : fi fi ])