--- STLport-5.1.5.orig/stlport/stl/config/_gcc.h
+++ STLport-5.1.5/stlport/stl/config/_gcc.h
@@ -459,3 +459,23 @@
 #  define _STLP_STATIC_TEMPLATE_DATA 1
 #endif
 
+/* Ugly hack here ; we pull in GNU libc <bits/mathdef.h> to find out whether
+ * this platform has `long double' type.  It solves #356570.
+ *
+ * THIS IS BAD BECAUSE WE POLLUTE THE GLOBAL NAMESPACE.
+ */
+#ifdef __GLIBC__
+#  if !defined(_MATH_H)
+#    define _HACK_UNDEF_MATH_H
+#    define _MATH_H
+#  endif
+#  include <bits/mathdef.h>
+#  if defined(__NO_LONG_DOUBLE_MATH)
+#    define _STLP_NO_LONG_DOUBLE
+#  endif
+#  if defined(_HACK_UNDEF_MATH_H)
+#    undef _HACK_UNDEF_MATH_H
+#    undef _MATH_H
+#  endif
+#endif
+