Mercurial > gnulib
view m4/random.m4 @ 40140:81f075eaa990
ptsname_r: Work around bug on Android 4.3.
* m4/ptsname_r.m4 (gl_FUNC_PTSNAME_R): Define
HAVE_ESSENTIALLY_WORKING_PTSNAME_R. Test whether the return value is
correct.
* lib/ptsname_r.c (__ptsname_r): If HAVE_ESSENTIALLY_WORKING_PTSNAME_R
is defined, just fix the return value.
* doc/glibc-functions/ptsname_r.texi: Mention the Android bug. Reword:
The behaviour of musl libc is nothing to be "fixed", since it is
compliant with the next POSIX standard.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sat, 26 Jan 2019 15:23:19 +0100 |
parents | cfcc57a4ed05 |
children |
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# random.m4 serial 4 dnl Copyright (C) 2012-2019 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_RANDOM], [ AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) dnl We can't use AC_CHECK_FUNC here, because random() is defined as a dnl static inline function when compiling for Android 4.4 or older. AC_CACHE_CHECK([for random], [gl_cv_func_random], [AC_LINK_IFELSE( [AC_LANG_PROGRAM( [[#include <stdlib.h>]], [[return random() == 0;]]) ], [gl_cv_func_random=yes], [gl_cv_func_random=no]) ]) if test $gl_cv_func_random = no; then HAVE_RANDOM=0 HAVE_INITSTATE=0 HAVE_SETSTATE=0 else AC_CHECK_FUNCS([initstate setstate]) if test $ac_cv_func_initstate = no; then HAVE_INITSTATE=0 fi if test $ac_cv_func_setstate = no; then HAVE_SETSTATE=0 fi if test $ac_cv_func_initstate = no || test $ac_cv_func_setstate = no; then dnl In order to define initstate or setstate, we need to define all the dnl functions at once. REPLACE_RANDOM=1 if test $ac_cv_func_initstate = yes; then REPLACE_INITSTATE=1 fi if test $ac_cv_func_setstate = yes; then REPLACE_SETSTATE=1 fi fi fi AC_CHECK_DECLS_ONCE([initstate]) if test $ac_cv_have_decl_initstate = no; then HAVE_DECL_INITSTATE=0 fi AC_CHECK_DECLS_ONCE([setstate]) if test $ac_cv_have_decl_setstate = no; then HAVE_DECL_SETSTATE=0 fi ]) # Prerequisites of lib/random.c. AC_DEFUN([gl_PREREQ_RANDOM], [ : ])