Always provide declarations of long double math functions when !_LIBC

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) \

math/math.h

@@ -98,7 +98,8 @@ __BEGIN_DECLS
 # undef	__MATH_PRECNAME
 
 # 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
 
 #   ifdef __USE_ISOC99
@@ -116,9 +117,6 @@ extern long double __REDIRECT_NTH (nexttowardl,
 #    endif
 #   endif
 
-/* Include the file of declarations again, this time using `long double'
-   instead of `double' and appending l to each function name.  */
-
 #   undef __MATHDECL_1
 #   define __MATHDECL_2(type, function,suffix, args, alias) \
   extern type __REDIRECT_NTH(__MATH_PRECNAME(function,suffix), \
@@ -127,6 +125,9 @@ extern long double __REDIRECT_NTH (nexttowardl,
   __MATHDECL_2(type, function,suffix, args, __CONCAT(function,suffix))
 #  endif
 
+/* Include the file of declarations again, this time using `long double'
+   instead of `double' and appending l to each function name.  */
+
 #  ifndef _Mlong_double_
 #   define _Mlong_double_	long double
 #  endif