abies Sat Apr 3 05:42:44 2004 EDT
Modified files:
/php-src/ext/standard config.m4
Log:
MFB: more elaborate HUGE_VAL test
http://cvs.php.net/diff.php/php-src/ext/standard/config.m4?r1=1.71&r2=1.72&ty=u
Index: php-src/ext/standard/config.m4
diff -u php-src/ext/standard/config.m4:1.71 php-src/ext/standard/config.m4:1.72
--- php-src/ext/standard/config.m4:1.71 Mon Mar 29 18:08:34 2004
+++ php-src/ext/standard/config.m4 Sat Apr 3 05:42:42 2004
@@ -1,4 +1,4 @@
-dnl $Id: config.m4,v 1.71 2004/03/29 23:08:34 helly Exp $ -*- sh -*-
+dnl $Id: config.m4,v 1.72 2004/04/03 10:42:42 abies Exp $ -*- sh -*-
divert(3)dnl
@@ -389,7 +389,7 @@
AC_DEFINE([HAVE_ATOF_ACCEPTS_INF], 1, [whether atof() accepts INF])
fi
-AC_CACHE_CHECK(whether HUGE_VAL + -HUGEVAL = NAN, ac_cv_huge_val_nan,[
+AC_CACHE_CHECK(whether HUGE_VAL + -HUGEVAL == NAN, ac_cv_huge_val_nan,[
AC_TRY_RUN([
#include <math.h>
#include <stdlib.h>
@@ -413,9 +413,16 @@
#define zend_isnan(a) 0
#endif
+double hv(int i)
+{
+ /* avoid inlining */
+ if (i) return hv(i-1);
+ else return HUGE_VAL;
+}
+
int main(int argc, char** argv)
{
- return zend_isinf(HUGE_VAL) && zend_isnan(HUGE_VAL + -HUGE_VAL) ? 0 : 1;
+ return zend_isinf(hv(3)) && zend_isnan(HUGE_VAL + -HUGE_VAL) ? 0 : 1;
}
],[
ac_cv_huge_val_nan=yes
@@ -427,7 +434,7 @@
])
dnl This is the most probable fallback so we assume yes in case of cross compile.
if test "$ac_cv_huge_val_nan" = "yes"; then
- AC_DEFINE([HAVE_HUGE_VAL_NAN], 1, [whether HUGE_VAL + -HUGEVAL = NAN])
+ AC_DEFINE([HAVE_HUGE_VAL_NAN], 1, [whether HUGE_VAL + -HUGEVAL == NAN])
fi
PHP_CHECK_I18N_FUNCS
--
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