--- ppl-0.10/src/Float.defs.hh	2008-10-03 15:23:03.000000000 +0200
+++ ppl-0.10-patched/src/Float.defs.hh	2009-02-04 07:59:06.000000000 +0100
@@ -65,6 +65,12 @@
   void build(bool negative, mpz_t mantissa, int exponent);
 };
 
+#ifdef WORDS_BIGENDIAN
+#ifndef PPL_WORDS_BIGENDIAN
+#define PPL_WORDS_BIGENDIAN
+#endif
+#endif
+
 #ifdef PPL_DOXYGEN_INCLUDE_IMPLEMENTATION_DETAILS
 /*! \ingroup PPL_CXX_interface */
 #endif // defined(PPL_DOXYGEN_INCLUDE_IMPLEMENTATION_DETAILS)