Correctly determine whether pow is available in libc on AIX 7 with xlc.

[gnulib.git] / lib / float.in.h

diff --git a/lib/float.in.h b/lib/float.in.h
index 986719b..caf822f 100644 (file)
--- a/lib/float.in.h
+++ b/lib/float.in.h
@@ -1,6 +1,6 @@
 /* A correct <float.h>.
 
-   Copyright (C) 2007 Free Software Foundation, Inc.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -17,6 +17,10 @@
 
 #ifndef _GL_FLOAT_H
 
+#if __GNUC__ >= 3
+@PRAGMA_SYSTEM_HEADER@
+#endif
+
 /* The include_next requires a split double-inclusion guard.  */
 #@INCLUDE_NEXT@ @NEXT_FLOAT_H@
 
@@ -24,7 +28,7 @@
 #define _GL_FLOAT_H
 
 /* 'long double' properties.  */
-#if defined __i386__ && defined __BEOS__
+#if defined __i386__ && (defined __BEOS__ || defined __OpenBSD__)
 /* Number of mantissa units, in base FLT_RADIX.  */
 # undef LDBL_MANT_DIG
 # define LDBL_MANT_DIG   64