diff -urN glibc-2.17-c758a686/sysdeps/ieee754/ldbl-128ibm/math_ldbl.h glibc-2.17-c758a686/sysdeps/ieee754/ldbl-128ibm/math_ldbl.h
--- glibc-2.17-c758a686/sysdeps/ieee754/ldbl-128ibm/math_ldbl.h	2014-05-27 19:58:07.000000000 -0500
+++ glibc-2.17-c758a686/sysdeps/ieee754/ldbl-128ibm/math_ldbl.h	2014-05-27 19:59:00.000000000 -0500
@@ -190,6 +190,9 @@
 # define ldbl_unpack default_ldbl_unpack
 #endif
 
+/* Extract high double.  */
+#define ldbl_high(x) ((double) x)
+
 /* Convert a finite long double to canonical form.
    Does not handle +/-Inf properly.  */
 static inline void