Generalized compilation fix for old compilers.
[wxWidgets.git] / include / wx / platform.h
1 /**
2 * Name: wx/platform.h
3 * Purpose: define the OS and compiler identification macros
4 * Author: Vadim Zeitlin
5 * Modified by:
6 * Created: 29.10.01 (extracted from wx/defs.h)
7 * RCS-ID: $Id$
8 * Copyright: (c) 1997-2001 Vadim Zeitlin
9 * Licence: wxWindows licence
10 */
11
12 /* THIS IS A C FILE, DON'T USE C++ FEATURES (IN PARTICULAR COMMENTS) IN IT */
13
14 #ifndef _WX_PLATFORM_H_
15 #define _WX_PLATFORM_H_
16
17
18 /*
19 Codewarrior doesn't define any Windows symbols until some headers
20 are included
21 */
22 #ifdef __MWERKS__
23 # include <stddef.h>
24 #endif
25
26 /*
27 WXMAC variants
28 __WXMAC_CLASSIC__ means ppc non-carbon builds, __WXMAC_CARBON__ means
29 carbon API available (mach or cfm builds) , __WXMAC_OSX__ means mach-o
30 builds, running under 10.2 + only
31 */
32 #ifdef __WXMAC__
33 # if defined(__MACH__)
34 # define __WXMAC_OSX__
35 # define __WXMAC_CARBON__
36 # include <AvailabilityMacros.h>
37 # ifndef MAC_OS_X_VERSION_10_4
38 # define MAC_OS_X_VERSION_10_4 1040
39 # endif
40 # ifndef MAC_OS_X_VERSION_10_5
41 # define MAC_OS_X_VERSION_10_5 1050
42 # endif
43 # ifdef __WXMAC_XCODE__
44 # include <unistd.h>
45 # include "wx/mac/carbon/config_xcode.h"
46 # endif
47 # else
48 # if TARGET_CARBON
49 # define __WXMAC_CARBON__
50 # else
51 # define __WXMAC_CLASSIC__
52 # endif
53 # endif
54 #endif
55
56 /*
57 __WXOSX__ is a common define to wxMac (Carbon) and wxCocoa ports under OS X.
58 */
59 #if defined(__WXMAC_OSX__) || defined(__WXCOCOA__)
60 # define __WXOSX__
61 #endif
62
63 /*
64 first define Windows symbols if they're not defined on the command line: we
65 can autodetect everything we need if _WIN32 is defined
66 */
67 #if defined(__CYGWIN__) && defined(__WINDOWS__)
68 # ifndef __WXMSW__
69 # define __WXMSW__
70 # endif
71
72 # ifndef _WIN32
73 # define _WIN32
74 # endif
75
76 # ifndef WIN32
77 # define WIN32
78 # endif
79 #endif
80
81 #if defined(__PALMOS__)
82 # if __PALMOS__ == 0x06000000
83 # define __WXPALMOS6__
84 # endif
85 # if __PALMOS__ == 0x05000000
86 # define __WXPALMOS5__
87 # endif
88 # ifndef __WXPALMOS__
89 # define __WXPALMOS__
90 # endif
91 # ifdef __WXMSW__
92 # undef __WXMSW__
93 # endif
94 # ifdef __WINDOWS__
95 # undef __WINDOWS__
96 # endif
97 # ifdef __WIN32__
98 # undef __WIN32__
99 # endif
100 # ifdef WIN32
101 # undef WIN32
102 # endif
103 # ifdef _WIN32
104 # undef _WIN32
105 # endif
106 #endif
107
108 #if defined(_WIN64)
109 # ifndef _WIN32
110 /*
111 a lot of code (mistakenly) uses #ifdef _WIN32 to either test for
112 Windows or to test for !__WIN16__, so we must define _WIN32 for
113 Win64 as well to ensure that the existing code continues to work.
114 */
115 # define _WIN32
116 # endif /* !_WIN32 */
117
118 # ifndef __WIN64__
119 # define __WIN64__
120 # endif /* !__WIN64__ */
121 #endif /* _WIN64 */
122
123 #if (defined(_WIN32) || defined(WIN32) || defined(__NT__) || defined(__WXWINCE__)) \
124 && !defined(__WXMOTIF__) && !defined(__WXGTK__) && !defined(__WXX11__)
125 # ifndef __WXMSW__
126 # define __WXMSW__
127 # endif
128
129 # ifndef __WIN32__
130 # define __WIN32__
131 # endif
132 #endif /* Win32 */
133
134 #if defined(__WXMSW__) || defined(__WIN32__)
135 # if !defined(__WINDOWS__)
136 # define __WINDOWS__
137 # endif
138 #endif
139
140 /* detect MS SmartPhone */
141 #if defined( WIN32_PLATFORM_WFSP )
142 # ifndef __SMARTPHONE__
143 # define __SMARTPHONE__
144 # endif
145 # ifndef __WXWINCE__
146 # define __WXWINCE__
147 # endif
148 #endif
149
150 /* detect PocketPC */
151 #if defined( WIN32_PLATFORM_PSPC )
152 # ifndef __POCKETPC__
153 # define __POCKETPC__
154 # endif
155 # ifndef __WXWINCE__
156 # define __WXWINCE__
157 # endif
158 #endif
159
160 /* detect Standard WinCE SDK */
161 #if defined( WCE_PLATFORM_STANDARDSDK )
162 # ifndef __WINCE_STANDARDSDK__
163 # define __WINCE_STANDARDSDK__
164 # endif
165 # ifndef __WXWINCE__
166 # define __WXWINCE__
167 # endif
168 #endif
169
170 #if defined(_WIN32_WCE) && !defined(WIN32_PLATFORM_WFSP) && !defined(WIN32_PLATFORM_PSPC)
171 # if (_WIN32_WCE >= 400)
172 # ifndef __WINCE_NET__
173 # define __WINCE_NET__
174 # endif
175 # elif (_WIN32_WCE >= 200)
176 # ifndef __HANDHELDPC__
177 # define __HANDHELDPC__
178 # endif
179 # endif
180 # ifndef __WXWINCE__
181 # define __WXWINCE__
182 # endif
183 #endif
184
185 #if defined(__POCKETPC__) || defined(__SMARTPHONE__) || defined(__WXGPE__)
186 # define __WXHANDHELD__
187 #endif
188
189 /*
190 Include wx/setup.h for the Unix platform defines generated by configure and
191 the library compilation options
192
193 Note that it must be included before defining hardware symbols below as they
194 could be already defined by configure
195 */
196 #include "wx/setup.h"
197
198 /*
199 Hardware platform detection.
200
201 VC++ defines _M_xxx symbols.
202 */
203 #if defined(_M_IX86) || defined(i386) || defined(__i386) || defined(__i386__)
204 #ifndef __INTEL__
205 #define __INTEL__
206 #endif
207 #endif /* x86 */
208
209 #if defined(_M_IA64)
210 #ifndef __IA64__
211 #define __IA64__
212 #endif
213 #endif /* ia64 */
214
215 #if defined(_M_MPPC) || defined(__PPC__)
216 #ifndef __POWERPC__
217 #define __POWERPC__
218 #endif
219 #endif /* alpha */
220
221 #if defined(_M_ALPHA) || defined(__AXP__)
222 #ifndef __ALPHA__
223 #define __ALPHA__
224 #endif
225 #endif /* alpha */
226
227
228 /*
229 adjust the Unicode setting: wxUSE_UNICODE should be defined as 0 or 1
230 and is used by wxWidgets, _UNICODE and/or UNICODE may be defined or used by
231 the system headers so bring these settings in sync
232 */
233
234 /* set wxUSE_UNICODE to 1 if UNICODE or _UNICODE is defined */
235 #if defined(_UNICODE) || defined(UNICODE)
236 # undef wxUSE_UNICODE
237 # define wxUSE_UNICODE 1
238 #else /* !UNICODE */
239 # ifndef wxUSE_UNICODE
240 # define wxUSE_UNICODE 0
241 # endif
242 #endif /* UNICODE/!UNICODE */
243
244 /* and vice versa: define UNICODE and _UNICODE if wxUSE_UNICODE is 1 */
245 #if wxUSE_UNICODE
246 # ifndef _UNICODE
247 # define _UNICODE
248 # endif
249 # ifndef UNICODE
250 # define UNICODE
251 # endif
252 #endif /* wxUSE_UNICODE */
253
254 #if defined( __MWERKS__ ) && !defined(__INTEL__)
255 /* otherwise MSL headers bring in WIN32 dependant APIs */
256 #undef UNICODE
257 #endif
258
259
260 /*
261 This macro can be used to test the Open Watcom version.
262 */
263 #ifndef __WATCOMC__
264 # define wxWATCOM_VERSION(major,minor) 0
265 # define wxCHECK_WATCOM_VERSION(major,minor) 0
266 # define wxONLY_WATCOM_EARLIER_THAN(major,minor) 0
267 #elif defined(__WATCOMC__) && __WATCOMC__ < 1200
268 # error "Only Open Watcom is supported in this release"
269 #else
270 # define wxWATCOM_VERSION(major,minor) ( major * 100 + minor * 10 + 1100 )
271 # define wxCHECK_WATCOM_VERSION(major,minor) ( __WATCOMC__ >= wxWATCOM_VERSION(major,minor) )
272 # define wxONLY_WATCOM_EARLIER_THAN(major,minor) ( __WATCOMC__ < wxWATCOM_VERSION(major,minor) )
273 #endif
274
275 /*
276 check the consistency of the settings in setup.h: note that this must be
277 done after setting wxUSE_UNICODE correctly as it is used in wx/chkconf.h
278 */
279 #include "wx/chkconf.h"
280
281
282 /*
283 some compilers don't support iostream.h any longer, while some of theme
284 are not updated with <iostream> yet, so override the users setting here
285 in such case.
286 */
287 #if defined(_MSC_VER) && (_MSC_VER >= 1310)
288 # undef wxUSE_IOSTREAMH
289 # define wxUSE_IOSTREAMH 0
290 #elif defined(__DMC__) || defined(__WATCOMC__)
291 # undef wxUSE_IOSTREAMH
292 # define wxUSE_IOSTREAMH 1
293 #elif defined(__MINGW32__)
294 # undef wxUSE_IOSTREAMH
295 # define wxUSE_IOSTREAMH 0
296 #endif /* compilers with/without iostream.h */
297
298 /*
299 old C++ headers (like <iostream.h>) declare classes in the global namespace
300 while the new, standard ones (like <iostream>) do it in std:: namespace,
301 unless it's an old gcc version.
302
303 using this macro allows constuctions like "wxSTD iostream" to work in
304 either case
305 */
306 #if !wxUSE_IOSTREAMH && (!defined(__GNUC__) || ( __GNUC__ > 2 ) || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95))
307 # define wxSTD std::
308 #else
309 # define wxSTD
310 #endif
311
312 /*
313 OS: first of all, test for MS-DOS platform. We must do this before testing
314 for Unix, because DJGPP compiler defines __unix__ under MS-DOS
315 */
316 #if defined(__GO32__) || defined(__DJGPP__) || defined(__DOS__)
317 # ifndef __DOS__
318 # define __DOS__
319 # endif
320 /* size_t is the same as unsigned int for Watcom 11 compiler, */
321 /* so define it if it hadn't been done by configure yet */
322 # if !defined(wxSIZE_T_IS_UINT) && !defined(wxSIZE_T_IS_ULONG)
323 # ifdef __WATCOMC__
324 # define wxSIZE_T_IS_UINT
325 # endif
326 # ifdef __DJGPP__
327 # define wxSIZE_T_IS_ULONG
328 # endif
329 # endif
330
331 /*
332 OS: then test for generic Unix defines, then for particular flavours and
333 finally for Unix-like systems
334 */
335 #elif defined(__UNIX__) || defined(__unix) || defined(__unix__) || \
336 defined(____SVR4____) || defined(__LINUX__) || defined(__sgi) || \
337 defined(__hpux) || defined(sun) || defined(__SUN__) || defined(_AIX) || \
338 defined(__EMX__) || defined(__VMS) || defined(__BEOS__)
339
340 # define __UNIX_LIKE__
341
342 /* Helps SGI compilation, apparently */
343 # ifdef __SGI__
344 # ifdef __GNUG__
345 # define __need_wchar_t
346 # else /* !gcc */
347 /*
348 Note I use the term __SGI_CC__ for both cc and CC, its not a good
349 idea to mix gcc and cc/CC, the name mangling is different
350 */
351 # define __SGI_CC__
352 # endif /* gcc/!gcc */
353
354 /* system headers use this symbol and not __cplusplus in some places */
355 # ifndef _LANGUAGE_C_PLUS_PLUS
356 # define _LANGUAGE_C_PLUS_PLUS
357 # endif
358 # endif /* SGI */
359
360 # if defined(sun) || defined(__SUN__)
361 # ifndef __GNUG__
362 # ifndef __SUNCC__
363 # define __SUNCC__
364 # endif /* Sun CC */
365 # endif
366 # endif /* Sun */
367
368 # ifdef __EMX__
369 # define OS2EMX_PLAIN_CHAR
370 # endif
371
372 /* define __HPUX__ for HP-UX where standard macro is __hpux */
373 # if defined(__hpux) && !defined(__HPUX__)
374 # define __HPUX__
375 # endif /* HP-UX */
376
377 # if defined(__CYGWIN__) || defined(__WINE__)
378 # if !defined(wxSIZE_T_IS_UINT)
379 # define wxSIZE_T_IS_UINT
380 # endif
381 # endif
382 #elif defined(applec) || \
383 defined(THINK_C) || \
384 (defined(__MWERKS__) && !defined(__INTEL__))
385 /* MacOS */
386 # if !defined(wxSIZE_T_IS_UINT) && !defined(wxSIZE_T_IS_ULONG)
387 # define wxSIZE_T_IS_ULONG
388 # endif
389 #elif defined(__WXMAC__) && defined(__APPLE__)
390 /* Mac OS X */
391 # define __UNIX_LIKE__
392
393 /*
394 These defines are needed when compiling using Project Builder
395 with a non generated setup0.h
396 */
397 # ifndef __UNIX__
398 # define __UNIX__ 1
399 # endif
400 # ifndef __BSD__
401 # define __BSD__ 1
402 # endif
403 # ifndef __DARWIN__
404 # define __DARWIN__ 1
405 # endif
406 # ifndef __POWERPC__
407 # define __POWERPC__ 1
408 # endif
409 # ifndef TARGET_CARBON
410 # define TARGET_CARBON 1
411 # endif
412
413 # if !defined(wxSIZE_T_IS_UINT) && !defined(wxSIZE_T_IS_ULONG)
414 # define wxSIZE_T_IS_ULONG
415 # endif
416 /*
417 Some code has been added to workaround defects(?) in the
418 bundled gcc compiler. These corrections are identified by
419 __DARWIN__ for Darwin related corrections (wxMac, wxMotif)
420 */
421 #elif defined(__OS2__)
422
423 /* wxOS2 vs. non wxOS2 ports on OS2 platform */
424 # if !defined(__WXMOTIF__) && !defined(__WXGTK__) && !defined(__WXX11__)
425 # ifndef __WXPM__
426 # define __WXPM__
427 # endif
428 # endif
429
430 # if defined(__IBMCPP__)
431 # define __VISAGEAVER__ __IBMCPP__
432 # endif
433
434 /* Place other OS/2 compiler environment defines here */
435 # if defined(__VISAGECPP__)
436 /* VisualAge is the only thing that understands _Optlink */
437 # define LINKAGEMODE _Optlink
438 # endif
439 # define wxSIZE_T_IS_UINT
440
441 #elif defined(__PALMOS__)
442 # ifdef __WIN32__
443 # error "__WIN32__ should not be defined for PalmOS"
444 # endif
445 # ifdef __WINDOWS__
446 # error "__WINDOWS__ should not be defined for PalmOS"
447 # endif
448 # ifdef __WXMSW__
449 # error "__WXMSW__ should not be defined for PalmOS"
450 # endif
451
452 #else /* Windows */
453 # ifndef __WINDOWS__
454 # define __WINDOWS__
455 # endif /* Windows */
456
457 /* to be changed for Win64! */
458 # ifndef __WIN32__
459 # error "__WIN32__ should be defined for Win32 and Win64, Win16 is not supported"
460 # endif
461
462 /*
463 define another standard symbol for Microsoft Visual C++: the standard
464 one (_MSC_VER) is also defined by Metrowerks compiler
465 */
466 # if defined(_MSC_VER) && !defined(__MWERKS__)
467 # define __VISUALC__ _MSC_VER
468 # elif defined(__BCPLUSPLUS__) && !defined(__BORLANDC__)
469 # define __BORLANDC__
470 # elif defined(__WATCOMC__)
471 # elif defined(__SC__)
472 # define __SYMANTECC__
473 # endif /* compiler */
474
475 /* size_t is the same as unsigned int for all Windows compilers we know, */
476 /* so define it if it hadn't been done by configure yet */
477 # if !defined(wxSIZE_T_IS_UINT) && !defined(wxSIZE_T_IS_ULONG)
478 # define wxSIZE_T_IS_UINT
479 # endif
480 #endif /* OS */
481
482 /*
483 if we're on a Unix system but didn't use configure (so that setup.h didn't
484 define __UNIX__), do define __UNIX__ now
485 */
486 #if !defined(__UNIX__) && defined(__UNIX_LIKE__)
487 # define __UNIX__
488 #endif /* Unix */
489
490 #if defined(__WXMOTIF__) || defined(__WXX11__)
491 # define __X__
492 #endif
493
494 #ifdef __SC__
495 # ifdef __DMC__
496 # define __DIGITALMARS__
497 # else
498 # define __SYMANTEC__
499 # endif
500 #endif
501
502 #ifdef __INTEL_COMPILER
503 # define __INTELC__
504 #endif
505
506 /*
507 We get "Large Files (ILP32) not supported in strict ANSI mode." #error
508 from HP-UX standard headers when compiling with g++ without this:
509 */
510 #if defined(__HPUX__) && !defined(__STDC_EXT__)
511 # define __STDC_EXT__ 1
512 #endif
513
514 /* Force linking against required libraries under Windows: */
515 #ifdef __WXWINCE__
516 # include "wx/msw/wince/libraries.h"
517 #elif defined __WINDOWS__
518 # include "wx/msw/libraries.h"
519 #endif
520
521 /*
522 This macro can be used to test the gcc version and can be used like this:
523
524 # if wxCHECK_GCC_VERSION(3, 1)
525 ... we have gcc 3.1 or later ...
526 # else
527 ... no gcc at all or gcc < 3.1 ...
528 # endif
529 */
530 #if defined(__GNUC__) && defined(__GNUC_MINOR__)
531 #define wxCHECK_GCC_VERSION( major, minor ) \
532 ( ( __GNUC__ > (major) ) \
533 || ( __GNUC__ == (major) && __GNUC_MINOR__ >= (minor) ) )
534 #else
535 #define wxCHECK_GCC_VERSION( major, minor ) 0
536 #endif
537
538 #if defined(__BORLANDC__) || (defined(__GNUC__) && __GNUC__ < 3)
539 #define wxNEEDS_CHARPP
540 #endif
541
542 /*
543 This macro can be used to check that the version of mingw32 compiler is
544 at least maj.min
545 */
546 #if ( defined( __GNUWIN32__ ) || defined( __MINGW32__ ) || \
547 ( defined( __CYGWIN__ ) && defined( __WINDOWS__ ) ) || \
548 wxCHECK_WATCOM_VERSION(1,0) ) && \
549 !defined(__DOS__) && \
550 !defined(__WXPM__) && \
551 !defined(__WXMOTIF__) && \
552 !defined(__WXGTK__) && \
553 !defined(__WXX11__) && \
554 !defined(__WXPALMOS__)
555 # include "wx/msw/gccpriv.h"
556 #else
557 # undef wxCHECK_W32API_VERSION
558 # define wxCHECK_W32API_VERSION(maj, min) (0)
559 #endif
560
561 #if defined (__WXMSW__)
562 # if !defined(__WATCOMC__)
563 # define wxHAVE_RAW_BITMAP
564 # endif
565 #endif
566
567 #if defined (__WXMAC__)
568 # if ( !defined(__MACH__) || ( defined(__BIG_ENDIAN__) && __BIG_ENDIAN__ ) )
569 # define WORDS_BIGENDIAN 1
570 # else
571 # undef WORDS_BIGENDIAN
572 # endif
573 #endif
574
575 /* Choose which method we will use for updating menus
576 * - in OnIdle, or when we receive a wxEVT_MENU_OPEN event.
577 * Presently, only Windows and GTK+ support wxEVT_MENU_OPEN.
578 */
579 #ifndef wxUSE_IDLEMENUUPDATES
580 # if (defined(__WXMSW__) || defined(__WXGTK__)) && !defined(__WXUNIVERSAL__)
581 # define wxUSE_IDLEMENUUPDATES 0
582 # else
583 # define wxUSE_IDLEMENUUPDATES 1
584 # endif
585 #endif
586
587 /*
588 * Define symbols that are not yet in
589 * configure or possibly some setup.h files.
590 * They will need to be added.
591 */
592
593 #ifndef wxUSE_FILECONFIG
594 # if wxUSE_CONFIG
595 # define wxUSE_FILECONFIG 1
596 # else
597 # define wxUSE_FILECONFIG 0
598 # endif
599 #endif
600
601 #ifndef wxUSE_HOTKEY
602 # define wxUSE_HOTKEY 0
603 #endif
604
605 #if !defined(wxUSE_WXDIB) && defined(__WXMSW__)
606 # define wxUSE_WXDIB 1
607 #endif
608
609 /*
610 We need AvailabilityMacros.h for ifdefing out things that don't exist on
611 OSX 10.2 and lower
612 FIXME: We need a better way to detect for 10.3 then including a system header
613 */
614 #ifdef __DARWIN__
615 #include <AvailabilityMacros.h>
616 #endif
617
618 #endif /* _WX_PLATFORM_H_ */