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