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Support the MP library on recent FreeBSD, have it pass relevant tests. src/ChangeLog addition: 2011-11-26 Aidan Kehoe <kehoea@parhasard.net> * number-mp.c (bignum_to_string): Don't overwrite the accumulator we've just set up for this function. * number-mp.c (BIGNUM_TO_TYPE): mp_itom() doesn't necessarily do what this code used to think with negative numbers, it can treat them as unsigned ints. Subtract numbers from bignum_zero instead of multiplying them by -1 to convert them to their negative equivalents. * number-mp.c (bignum_to_int): * number-mp.c (bignum_to_uint): * number-mp.c (bignum_to_long): * number-mp.c (bignum_to_ulong): * number-mp.c (bignum_to_double): Use the changed BIGNUM_TO_TYPE() in these functions. * number-mp.c (bignum_ceil): * number-mp.c (bignum_floor): In these functions, be more careful about rounding to positive and negative infinity, respectively. Don't use the sign of QUOTIENT when working out out whether to add or subtract one, rather use the sign QUOTIENT would have if arbitrary-precision division were done. * number-mp.h: * number-mp.h (MP_GCD): Wrap #include <mp.h> in BEGIN_C_DECLS/END_C_DECLS. * number.c (Fbigfloat_get_precision): * number.c (Fbigfloat_set_precision): Don't attempt to call XBIGFLOAT_GET_PREC if this build doesn't support big floats.
author Aidan Kehoe <kehoea@parhasard.net>
date Sat, 26 Nov 2011 17:59:14 +0000
parents 4dee0387b9de
children abe88cd200c9
line wrap: on
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/* system description file for cygwin32.
   Copyright (C) 1993, 1994, 1995 Free Software Foundation, Inc.
   Copyright (C) 2001 Ben Wing.

This file is part of XEmacs.

XEmacs is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation, either version 3 of the License, or (at your
option) any later version.

XEmacs is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received a copy of the GNU General Public License
along with XEmacs.  If not, see <http://www.gnu.org/licenses/>. */

/* Building under cygwin
 *
 * The approach I have taken with this port is to use primarily the
 * UNIX code base adding stuff that is MS-Windows specific. This works
 * quite well, and is in keeping with my perception of the cygwin
 * philosophy.  Note that if you make changes to this file you do NOT
 * want to define WIN32_NATIVE (formerly "WINDOWSNT"), I repeat - do
 * not define this, it will break everything horribly. What does get
 * defined is HAVE_MS_WINDOWS, but this is done by configure and only
 * applies to the window system.
 *
 * When building make sure your HOME path is unix style - i.e. without
 * a drive letter.
 *
 * once you have done this, configure and make.
 *
 * windows '95 - I haven't tested this under '95, it will probably
 * build but I know there are some limitations with cygwin under 95 so
 * YMMV. I build with NT4 SP3.
 *
 * Andy Piper <andy@xemacs.org> 8/1/98 
 * http://www.xemacs.freeserve.co.uk/ */

#include "win32-common.h"

/* Identify ourselves */
#define CYGWIN

/* We are using Cygwin-style headers in /usr/include, also used by MinGW */
#define CYGWIN_HEADERS

/* cheesy way to determine cygwin version */
#ifndef NOT_C_CODE
# include <signal.h>
# include <cygwin/version.h>

/* Still left out of 1.1! */
double logb (double);
int killpg (int pgrp, int sig);

#endif

#ifndef ORDINARY_LINK
#define ORDINARY_LINK
#endif

#if __GNUC__ >= 3
#define C_SWITCH_SYSTEM -fno-caller-saves
#else
#define C_SWITCH_SYSTEM -fno-caller-saves -fvtable-thunks
#endif

#define LIBS_SYSTEM -lwinmm
#define WIN32_LEAN_AND_MEAN

#define TEXT_START -1
#define HEAP_IN_DATA
#define NO_LIM_DATA

#define BROKEN_SIGIO

#define CYGWIN_BROKEN_SIGNALS

#define strnicmp strncasecmp

#undef MAIL_USE_SYSTEM_LOCK

/* SYSTEM_TYPE should indicate the kind of system you are using.
 It sets the Lisp variable system-type.  */

#define SYSTEM_TYPE "cygwin32"

/* Cygwin bogusly forgets to copy mmap()ed regions into the child when
   a fork is done; thus, any reference to anything in mmap()ed space
   (under PDUMP, in particular, this bites, since all data loaded from
   PDUMP is normally done using mmap()) will cause an immediate segfault. */
#undef HAVE_MMAP