--- configure
+++ configure
@@ -77957,7 +77957,11 @@
 echo "configure:77958: checking for working ttyname_r() implementation" >&5
   if test "$cross_compiling" = yes; then
   
-    echo "$ac_t""no, cannot detect working ttyname_r() when cross compiling. posix_ttyname() will be thread-unsafe" 1>&6
+    #evaluated by running test program on target platform
+    echo "$ac_t""yes" 1>&6
+    cat >> confdefs.h <<EOF
+#define HAVE_TTYNAME_R 1
+EOF
   
 else
   cat > conftest.$ac_ext <<EOF