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