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__) || 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 /* test for old versions of Borland C, need at least 5.82, Turbo explorer,
 261    available for free at http://www.turboexplorer.com/downloads
 262 */
 263 #if defined(__BORLANDC__) && (__BORLANDC__ < 0x582)
 264 #error "This version of wxWidgets requires at least Borland 5.82 (Turbo Explorer); You may at your own risk remove this line and try your system"
 265 #endif /* __BORLANDC__ */
 266
 267
 268 /*
 269    This macro can be used to test the Open Watcom version.
 270 */
 271 #ifndef __WATCOMC__
 272 #   define wxWATCOM_VERSION(major,minor) 0
 273 #   define wxCHECK_WATCOM_VERSION(major,minor) 0
 274 #   define wxONLY_WATCOM_EARLIER_THAN(major,minor) 0
 275 #elif defined(__WATCOMC__) && __WATCOMC__ < 1200
 276 #   error "Only Open Watcom is supported in this release"
 277 #else
 278 #   define wxWATCOM_VERSION(major,minor) ( major * 100 + minor * 10 + 1100 )
 279 #   define wxCHECK_WATCOM_VERSION(major,minor) ( __WATCOMC__ >= wxWATCOM_VERSION(major,minor) )
 280 #   define wxONLY_WATCOM_EARLIER_THAN(major,minor) ( __WATCOMC__ < wxWATCOM_VERSION(major,minor) )
 281 #endif
 282
 283 /*
 284    OS: first of all, test for MS-DOS platform. We must do this before testing
 285        for Unix, because DJGPP compiler defines __unix__ under MS-DOS
 286  */
 287 #if defined(__GO32__) || defined(__DJGPP__) || defined(__DOS__)
 288 #    ifndef __DOS__
 289 #        define __DOS__
 290 #    endif
 291     /* size_t is the same as unsigned int for Watcom 11 compiler, */
 292     /* so define it if it hadn't been done by configure yet */
 293 #    if !defined(wxSIZE_T_IS_UINT) && !defined(wxSIZE_T_IS_ULONG)
 294 #        ifdef __WATCOMC__
 295 #            define wxSIZE_T_IS_UINT
 296 #        endif
 297 #        ifdef __DJGPP__
 298 #            define wxSIZE_T_IS_ULONG
 299 #        endif
 300 #    endif
 301
 302 /*
 303    OS: then test for generic Unix defines, then for particular flavours and
 304        finally for Unix-like systems
 305        Mac OS X matches this case (__MACH__), prior Mac OS do not.
 306  */
 307 #elif defined(__UNIX__) || defined(__unix) || defined(__unix__) || \
 308       defined(____SVR4____) || defined(__LINUX__) || defined(__sgi) || \
 309       defined(__hpux) || defined(sun) || defined(__SUN__) || defined(_AIX) || \
 310       defined(__EMX__) || defined(__VMS) || defined(__BEOS__) || defined(__MACH__)
 311
 312 #    define __UNIX_LIKE__
 313
 314     /* Helps SGI compilation, apparently */
 315 #    ifdef __SGI__
 316 #        ifdef __GNUG__
 317 #            define __need_wchar_t
 318 #        else /* !gcc */
 319             /*
 320                Note I use the term __SGI_CC__ for both cc and CC, its not a good
 321                idea to mix gcc and cc/CC, the name mangling is different
 322              */
 323 #            define __SGI_CC__
 324 #        endif /* gcc/!gcc */
 325
 326         /* system headers use this symbol and not __cplusplus in some places */
 327 #       ifndef _LANGUAGE_C_PLUS_PLUS
 328 #           define _LANGUAGE_C_PLUS_PLUS
 329 #       endif
 330 #    endif  /* SGI */
 331
 332 #    if defined(__SUNPRO_CC)
 333 #       ifndef __SUNCC__
 334 #           define __SUNCC__ __SUNPRO_CC
 335 #       endif /* Sun CC */
 336 #    endif /* Sun CC */
 337
 338 #    ifdef __EMX__
 339 #        define OS2EMX_PLAIN_CHAR
 340 #    endif
 341
 342     /* define __HPUX__ for HP-UX where standard macro is __hpux */
 343 #    if defined(__hpux) && !defined(__HPUX__)
 344 #        define __HPUX__
 345 #    endif /* HP-UX */
 346
 347 #    if defined(__CYGWIN__) || defined(__WINE__)
 348 #        if !defined(wxSIZE_T_IS_UINT)
 349 #            define wxSIZE_T_IS_UINT
 350 #        endif
 351 #    endif
 352
 353     /*  All of these should already be defined by including configure-
 354         generated setup.h but we wish to support Xcode compilation without
 355         requiring the user to define these himself.
 356      */
 357 #    if defined(__APPLE__) && defined(__MACH__)
 358 #        ifndef __UNIX__
 359 #            define __UNIX__ 1
 360 #        endif
 361 #        ifndef __BSD__
 362 #            define __BSD__ 1
 363 #        endif
 364         /*  __DARWIN__ is our own define to mean OS X or pure Darwin */
 365 #        ifndef __DARWIN__
 366 #            define __DARWIN__ 1
 367 #        endif
 368         /*  NOTE: TARGET_CARBON is actually a 0/1 and must be 1 for OS X */
 369 #        ifndef TARGET_CARBON
 370 #            define TARGET_CARBON 1
 371 #        endif
 372         /* OS X uses unsigned long size_t for both ILP32 and LP64 modes. */
 373 #        if !defined(wxSIZE_T_IS_UINT) && !defined(wxSIZE_T_IS_ULONG)
 374 #            define wxSIZE_T_IS_ULONG
 375 #        endif
 376 #    endif
 377
 378 /*
 379    OS: Classic Mac OS
 380  */
 381 #elif defined(applec) || \
 382       defined(THINK_C) || \
 383       (defined(__MWERKS__) && !defined(__INTEL__))
 384       /* MacOS */
 385 #    if !defined(wxSIZE_T_IS_UINT) && !defined(wxSIZE_T_IS_ULONG)
 386 #        define wxSIZE_T_IS_ULONG
 387 #    endif
 388
 389 /*
 390    OS: OS/2
 391  */
 392 #elif defined(__OS2__)
 393
 394     /* wxOS2 vs. non wxOS2 ports on OS2 platform */
 395 #    if !defined(__WXMOTIF__) && !defined(__WXGTK__) && !defined(__WXX11__)
 396 #        ifndef __WXPM__
 397 #            define __WXPM__
 398 #        endif
 399 #    endif
 400
 401 #    if defined(__IBMCPP__)
 402 #        define __VISAGEAVER__ __IBMCPP__
 403 #    endif
 404
 405     /* Place other OS/2 compiler environment defines here */
 406 #    if defined(__VISAGECPP__)
 407         /* VisualAge is the only thing that understands _Optlink */
 408 #        define LINKAGEMODE _Optlink
 409 #    endif
 410 #    define wxSIZE_T_IS_UINT
 411
 412 /*
 413    OS: Palm OS
 414  */
 415 #elif defined(__PALMOS__)
 416 #    ifdef __WIN32__
 417 #        error "__WIN32__ should not be defined for PalmOS"
 418 #    endif
 419 #    ifdef __WINDOWS__
 420 #        error "__WINDOWS__ should not be defined for PalmOS"
 421 #    endif
 422 #    ifdef __WXMSW__
 423 #        error "__WXMSW__ should not be defined for PalmOS"
 424 #    endif
 425
 426 /*
 427    OS: Otherwise it must be Windows
 428  */
 429 #else   /* Windows */
 430 #    ifndef __WINDOWS__
 431 #        define __WINDOWS__
 432 #    endif  /* Windows */
 433
 434     /* to be changed for Win64! */
 435 #    ifndef __WIN32__
 436 #        error "__WIN32__ should be defined for Win32 and Win64, Win16 is not supported"
 437 #    endif
 438
 439     /*
 440        define another standard symbol for Microsoft Visual C++: the standard
 441        one (_MSC_VER) is also defined by Metrowerks compiler
 442      */
 443 #    if defined(_MSC_VER) && !defined(__MWERKS__)
 444 #        define __VISUALC__ _MSC_VER
 445 #    elif defined(__BCPLUSPLUS__) && !defined(__BORLANDC__)
 446 #        define __BORLANDC__
 447 #    elif defined(__WATCOMC__)
 448 #    elif defined(__SC__)
 449 #        define __SYMANTECC__
 450 #    endif  /* compiler */
 451
 452     /* size_t is the same as unsigned int for all Windows compilers we know, */
 453     /* so define it if it hadn't been done by configure yet */
 454 #    if !defined(wxSIZE_T_IS_UINT) && !defined(wxSIZE_T_IS_ULONG)
 455 #        define wxSIZE_T_IS_UINT
 456 #    endif
 457 #endif  /* OS */
 458
 459 /*
 460    if we're on a Unix system but didn't use configure (so that setup.h didn't
 461    define __UNIX__), do define __UNIX__ now
 462  */
 463 #if !defined(__UNIX__) && defined(__UNIX_LIKE__)
 464 #    define __UNIX__
 465 #endif /* Unix */
 466
 467 #if defined(__WXMOTIF__) || defined(__WXX11__)
 468 #    define __X__
 469 #endif
 470
 471 #ifdef __SC__
 472 #    ifdef __DMC__
 473 #         define __DIGITALMARS__
 474 #    else
 475 #         define __SYMANTEC__
 476 #    endif
 477 #endif
 478
 479 #ifdef __INTEL_COMPILER
 480 #   define __INTELC__
 481 #endif
 482
 483 /*
 484    We get "Large Files (ILP32) not supported in strict ANSI mode." #error
 485    from HP-UX standard headers when compiling with g++ without this:
 486  */
 487 #if defined(__HPUX__) && !defined(__STDC_EXT__)
 488 #   define __STDC_EXT__ 1
 489 #endif
 490
 491 /* Force linking against required libraries under Windows: */
 492 #ifdef __WXWINCE__
 493 #   include "wx/msw/wince/libraries.h"
 494 #elif defined __WINDOWS__
 495 #   include "wx/msw/libraries.h"
 496 #endif
 497
 498 /*
 499    This macro can be used to test the gcc version and can be used like this:
 500
 501 #    if wxCHECK_GCC_VERSION(3, 1)
 502         ... we have gcc 3.1 or later ...
 503 #    else
 504         ... no gcc at all or gcc < 3.1 ...
 505 #    endif
 506 */
 507 #if defined(__GNUC__) && defined(__GNUC_MINOR__)
 508     #define wxCHECK_GCC_VERSION( major, minor ) \
 509         ( ( __GNUC__ > (major) ) \
 510             || ( __GNUC__ == (major) && __GNUC_MINOR__ >= (minor) ) )
 511 #else
 512     #define wxCHECK_GCC_VERSION( major, minor ) 0
 513 #endif
 514
 515 #if defined(__BORLANDC__) || (defined(__GNUC__) && __GNUC__ < 3)
 516 #define wxNEEDS_CHARPP
 517 #endif
 518
 519 /*
 520    This macro can be used to check that the version of mingw32 compiler is
 521    at least maj.min
 522  */
 523 #if ( defined( __GNUWIN32__ ) || defined( __MINGW32__ ) || \
 524     ( defined( __CYGWIN__ ) && defined( __WINDOWS__ ) ) || \
 525       wxCHECK_WATCOM_VERSION(1,0) ) && \
 526     !defined(__DOS__) && \
 527     !defined(__WXPM__) && \
 528     !defined(__WXMOTIF__) && \
 529     !defined(__WXGTK__) && \
 530     !defined(__WXX11__) && \
 531     !defined(__WXPALMOS__)
 532 #    include "wx/msw/gccpriv.h"
 533 #else
 534 #    undef wxCHECK_W32API_VERSION
 535 #    define wxCHECK_W32API_VERSION(maj, min) (0)
 536 #endif
 537
 538 /**
 539     This is similar to wxCHECK_GCC_VERSION but for Sun CC compiler.
 540  */
 541 #ifdef __SUNCC__
 542     /*
 543        __SUNCC__ is 0xVRP where V is major version, R release and P patch level
 544      */
 545     #define wxCHECK_SUNCC_VERSION(maj, min) (__SUNCC__ >= (((maj)<<8) | ((min)<<4)))
 546 #else
 547     #define wxCHECK_SUNCC_VERSION(maj, min) (0)
 548 #endif
 549
 550 #if defined (__WXMSW__)
 551 #    if !defined(__WATCOMC__)
 552 #        define wxHAVE_RAW_BITMAP
 553 #    endif
 554 #endif
 555
 556 /*
 557     Handle Darwin gcc universal compilation.  Don't do this in an Apple-
 558     specific case since no sane compiler should be defining either
 559     __BIG_ENDIAN__ or __LITTLE_ENDIAN__ unless it really is generating
 560     code that will be hosted on a machine with the appropriate endianness.
 561     If a compiler defines neither, assume the user or configure set
 562     WORDS_BIGENDIAN appropriately.
 563  */
 564 #if defined(__BIG_ENDIAN__)
 565 #    undef WORDS_BIGENDIAN
 566 #    define WORDS_BIGENDIAN 1
 567 #elif defined(__LITTLE_ENDIAN__)
 568 #    undef WORDS_BIGENDIAN
 569 #elif defined(__WXMAC__) && !defined(WORDS_BIGENDIAN)
 570 /*  According to Stefan even ancient Mac compilers defined __BIG_ENDIAN__ */
 571 #    warning "Compiling wxMac with probably wrong endianness"
 572 #endif
 573
 574 /*
 575    check the consistency of the settings in setup.h: note that this must be
 576    done after setting wxUSE_UNICODE correctly as it is used in wx/chkconf.h
 577    and after defining the compiler macros which are used in it too
 578  */
 579 #include "wx/chkconf.h"
 580
 581
 582 /*
 583    some compilers don't support iostream.h any longer, while some of theme
 584    are not updated with <iostream> yet, so override the users setting here
 585    in such case.
 586  */
 587 #if defined(_MSC_VER) && (_MSC_VER >= 1310)
 588 #    undef wxUSE_IOSTREAMH
 589 #    define wxUSE_IOSTREAMH 0
 590 #elif defined(__DMC__) || defined(__WATCOMC__)
 591 #    undef wxUSE_IOSTREAMH
 592 #    define wxUSE_IOSTREAMH 1
 593 #elif defined(__MINGW32__)
 594 #    undef wxUSE_IOSTREAMH
 595 #    define wxUSE_IOSTREAMH 0
 596 #endif /* compilers with/without iostream.h */
 597
 598 /*
 599    old C++ headers (like <iostream.h>) declare classes in the global namespace
 600    while the new, standard ones (like <iostream>) do it in std:: namespace,
 601    unless it's an old gcc version.
 602
 603    using this macro allows constuctions like "wxSTD iostream" to work in
 604    either case
 605  */
 606 #if !wxUSE_IOSTREAMH && (!defined(__GNUC__) || ( __GNUC__ > 2 ) || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95))
 607 #    define wxSTD std::
 608 #else
 609 #    define wxSTD
 610 #endif
 611
 612 /* On OpenVMS with the most recent HP C++ compiler some function (i.e. wscanf)
 613  * are only available in the std-namespace. (BUG???)
 614  */
 615 #if defined(  __VMS ) && (__DECCXX_VER >= 70100000) && !defined(__STD_CFRONT) && !defined( __NONAMESPACE_STD )
 616 # define wxVMS_USE_STD std::
 617 #else
 618 # define wxVMS_USE_STD
 619 #endif
 620
 621 /* Choose which method we will use for updating menus
 622  * - in OnIdle, or when we receive a wxEVT_MENU_OPEN event.
 623  * Presently, only Windows and GTK+ support wxEVT_MENU_OPEN.
 624  */
 625 #ifndef wxUSE_IDLEMENUUPDATES
 626 #    if (defined(__WXMSW__) || defined(__WXGTK__)) && !defined(__WXUNIVERSAL__)
 627 #        define wxUSE_IDLEMENUUPDATES 0
 628 #    else
 629 #        define wxUSE_IDLEMENUUPDATES 1
 630 #    endif
 631 #endif
 632
 633 /*
 634  * Define symbols that are not yet in
 635  * configure or possibly some setup.h files.
 636  * They will need to be added.
 637  */
 638
 639 #ifndef wxUSE_FILECONFIG
 640 #    if wxUSE_CONFIG
 641 #        define wxUSE_FILECONFIG 1
 642 #    else
 643 #        define wxUSE_FILECONFIG 0
 644 #    endif
 645 #endif
 646
 647 #ifndef wxUSE_HOTKEY
 648 #    define wxUSE_HOTKEY 0
 649 #endif
 650
 651 #if !defined(wxUSE_WXDIB) && defined(__WXMSW__)
 652 #    define wxUSE_WXDIB 1
 653 #endif
 654
 655 /*
 656     We need AvailabilityMacros.h for ifdefing out things that don't exist on
 657     OSX 10.2 and lower
 658     FIXME:  We need a better way to detect for 10.3 then including a system header
 659 */
 660 #ifdef __DARWIN__
 661     #include <AvailabilityMacros.h>
 662 #endif
 663
 664 #endif /* _WX_PLATFORM_H_ */