2 Copyright (C) 1995 Free Software Foundation, Inc.
4 This file is part of XEmacs.
6 XEmacs is free software; you can redistribute it and/or modify it
7 under the terms of the GNU General Public License as published by the
8 Free Software Foundation; either version 2, or (at your option) any
11 XEmacs is distributed in the hope that it will be useful, but WITHOUT
12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 You should have received a copy of the GNU General Public License
17 along with XEmacs; see the file COPYING. If not, write to
18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
21 /* Synched up with: Not really in FSF. */
23 #ifndef INCLUDED_sysfloat_h_
24 #define INCLUDED_sysfloat_h_
26 /* Work around a problem that happens because math.h on hpux 7
27 defines two static variables--which, in Emacs, are not really static,
28 because `static' is defined as nothing. The problem is that they are
29 defined both in data.c and in floatfns.c.
30 These macros prevent the name conflict.
32 (Is it still necessary to define static to nothing on hpux7?
33 Removing that would be the best fix. -jwz)
35 # if defined (HPUX) && !defined (HPUX8)
36 # define _MAXLDBL THIS_FILENAME ## _maxldbl
37 # define _NMAXLDBL THIS_FILENAME ## _nmaxldbl
40 #if defined(LINUX) && !(defined (__GLIBC__) && (__GLIBC__ >= 2))
41 /* These are redefined (correctly, but differently) in values.h. */
50 /* A quirky way to obtain logb prototype */
56 /* Work around symbol conflict on Linux/glibc */
58 /* SysV matherr is not defined if _BSD_SOURCE is used, and on Linux X11 */
59 /* is compiled with _BSD_SOURCE which can also change the size of other */
60 /* types. The configure test for matherr is broken. */
61 /* Bah. Good riddance to bad rubbish. */
71 # ifdef FLOAT_CHECK_ERRNO
72 # undef FLOAT_CHECK_ERRNO
74 # ifdef FLOAT_CHECK_DOMAIN
75 # undef FLOAT_CHECK_DOMAIN
79 #ifndef NO_FLOAT_CHECK_ERRNO
80 #define FLOAT_CHECK_ERRNO
83 #ifdef FLOAT_CHECK_ERRNO
88 # define isnan(x) ((x) != (x))
91 #endif /* INCLUDED_sysfloat_h_ */