+echo "$as_me:10925: checking if the POSIX test-macros are already defined" >&5
+echo $ECHO_N "checking if the POSIX test-macros are already defined... $ECHO_C" >&6
+if test "${cf_cv_posix_visible+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+cat >conftest.$ac_ext <<_ACEOF
+#line 10932 "configure"
+#include "confdefs.h"
+#include <stdio.h>
+int
+main (void)
+{
+
+#if defined(__POSIX_VISIBLE) && ((__POSIX_VISIBLE - 0L) > 0) \
+ && defined(__XSI_VISIBLE) && ((__XSI_VISIBLE - 0L) > 0) \
+ && defined(__BSD_VISIBLE) && ((__BSD_VISIBLE - 0L) > 0) \
+ && defined(__ISO_C_VISIBLE) && ((__ISO_C_VISIBLE - 0L) > 0)
+#error conflicting symbols found
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:10951: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ echo "$as_me:10954: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:10957: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:10960: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ cf_cv_posix_visible=no
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+cf_cv_posix_visible=yes
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+
+fi
+echo "$as_me:10971: result: $cf_cv_posix_visible" >&5
+echo "${ECHO_T}$cf_cv_posix_visible" >&6
+
+if test "$cf_cv_posix_visible" = no; then
+