--- libstdc++-v3/configure.orig	2007-07-29 05:46:25.000000000 +0200
+++ libstdc++-v3/configure	2007-07-29 05:46:27.000000000 +0200
@@ -6982,6 +6982,9 @@
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
 #include <complex.h>
+#ifdef __UCLIBC__
+#error ugly hack to make sure configure test fails here for cross until uClibc supports the complex funcs
+#endif
 int
 main ()
 {