diff -rupN gcc-4.3.4/gcc/libgcc2.c gcc-4.3.4-1/gcc/libgcc2.c
--- gcc-4.3.4/gcc/libgcc2.c	2007-11-05 06:41:40.000000000 -0500
+++ gcc-4.3.4-1/gcc/libgcc2.c	2010-01-11 16:05:08.115236347 -0500
@@ -1530,18 +1530,18 @@ FUNC (DWtype u)
 }
 #endif
 
-#if (defined(L_floatundisf) && LIBGCC2_HAS_SF_MODE)	\
-     || (defined(L_floatundidf) && LIBGCC2_HAS_DF_MODE)
+#if (defined(L__floatundisf) && LIBGCC2_HAS_SF_MODE)	\
+     || (defined(L__floatundidf) && LIBGCC2_HAS_DF_MODE)
 #define DI_SIZE (W_TYPE_SIZE * 2)
 #define F_MODE_OK(SIZE) \
   (SIZE < DI_SIZE							\
    && SIZE > (DI_SIZE - SIZE + FSSIZE)					\
    && !AVOID_FP_TYPE_CONVERSION(SIZE))
-#if defined(L_floatundisf)
+#if !defined(L__floatundisf) && defined(L_floatundisf)
 #define FUNC __floatundisf
 #define FSTYPE SFtype
 #define FSSIZE SF_SIZE
-#else
+#elif !defined(L__floatundidf)
 #define FUNC __floatundidf
 #define FSTYPE DFtype
 #define FSSIZE DF_SIZE