Mercurial > gnulib
view m4/random.m4 @ 40244:c39a0edd90d7
fts: minor simplification
* lib/fts.c (fts_safe_changedir): Remove redundant assignment.
author | Paul Eggert <eggert@cs.ucla.edu> |
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date | Sun, 17 Mar 2019 12:39:50 -0700 |
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], [ : ])