+echo $ac_n "checking for working stdbool.h""... $ac_c" 1>&6
+echo "configure:2385: checking for working stdbool.h" >&5
+if eval "test \"`echo '$''{'ac_cv_header_stdbool_h'+set}'`\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+ cat > conftest.$ac_ext <<EOF
+#line 2390 "configure"
+#include "confdefs.h"
+#include <stdbool.h>
+int main() {
+bool foo = false;
+; return 0; }
+EOF
+if { (eval echo configure:2397: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+ rm -rf conftest*
+ ac_cv_header_stdbool_h=yes
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -rf conftest*
+ ac_cv_header_stdbool_h=no
+fi
+rm -f conftest*
+fi
+
+echo "$ac_t""$ac_cv_header_stdbool_h" 1>&6
+if test $ac_cv_header_stdbool_h = yes; then
+ cat >> confdefs.h <<\EOF
+#define HAVE_STDBOOL_H 1
+EOF
+
+fi
+