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-rw-r--r--math/complex.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/math/complex.h b/math/complex.h
index 751aaf763f..cc6006e760 100644
--- a/math/complex.h
+++ b/math/complex.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997, 1998, 1999, 2000, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 1998, 1999, 2000, 2006, 2011 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -85,7 +85,8 @@ __BEGIN_DECLS
 /* And the long double versions.  It is non-critical to define them
    here unconditionally since `long double' is required in ISO C99.  */
 #if (__STDC__ - 0 || __GNUC__ - 0) \
-    && (!defined __NO_LONG_DOUBLE_MATH || defined __LDBL_COMPAT)
+    && (!(defined __NO_LONG_DOUBLE_MATH && defined _LIBC) \
+	|| defined __LDBL_COMPAT)
 # ifdef __LDBL_COMPAT
 #  undef __MATHDECL_1
 #  define __MATHDECL_1(type, function, args) \