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 * Copyright:   (c) 1997-2001 Vadim Zeitlin
   8 * Licence:     wxWindows licence
   9 */
  10
  11 /* THIS IS A C FILE, DON'T USE C++ FEATURES (IN PARTICULAR COMMENTS) IN IT */
  12
  13 #ifndef _WX_PLATFORM_H_
  14 #define _WX_PLATFORM_H_
  15
  16 #ifdef __WXMAC_XCODE__
  17 #    include <unistd.h>
  18 #    include <TargetConditionals.h>
  19 #    include <AvailabilityMacros.h>
  20 #    ifndef MAC_OS_X_VERSION_10_4
  21 #       define MAC_OS_X_VERSION_10_4 1040
  22 #    endif
  23 #    ifndef MAC_OS_X_VERSION_10_5
  24 #       define MAC_OS_X_VERSION_10_5 1050
  25 #    endif
  26 #    ifndef MAC_OS_X_VERSION_10_6
  27 #       define MAC_OS_X_VERSION_10_6 1060
  28 #    endif
  29 #    ifndef MAC_OS_X_VERSION_10_7
  30 #       define MAC_OS_X_VERSION_10_7 1070
  31 #    endif
  32 #    ifndef MAC_OS_X_VERSION_10_8
  33 #       define MAC_OS_X_VERSION_10_8 1080
  34 #    endif
  35 #    include "wx/osx/config_xcode.h"
  36 #    ifndef __WXOSX__
  37 #        define __WXOSX__ 1
  38 #    endif
  39 #    ifndef __WXMAC__
  40 #        define __WXMAC__ 1
  41 #    endif
  42 #endif
  43
  44 /*
  45     We use __WINDOWS__ as our main identification symbol for Microsoft Windows
  46     but it's actually not predefined directly by any commonly used compilers
  47     (only Watcom defines it itself and it's not supported any longer), so we
  48     define it ourselves if any of the following macros is defined:
  49
  50     - MSVC _WIN32 (notice that this is also defined under Win64)
  51     - Borland __WIN32__
  52     - Our __WXMSW__ which selects Windows as platform automatically
  53  */
  54 #if defined(_WIN32) || defined(__WIN32__) || defined(__WXMSW__)
  55 #    ifndef __WINDOWS__
  56 #        define __WINDOWS__
  57 #    endif /* !__WINDOWS__ */
  58 #endif /* Any standard symbol indicating Windows */
  59
  60 #if defined(_WIN64)
  61 #    ifndef _WIN32
  62         /*
  63             a lot of code (mistakenly) uses #ifdef _WIN32 to either test for
  64             Windows or to test for !__WIN16__, so we must define _WIN32 for
  65             Win64 as well to ensure that the existing code continues to work.
  66          */
  67 #       define _WIN32
  68 #   endif /* !_WIN32 */
  69
  70 #   ifndef __WIN64__
  71 #       define __WIN64__
  72 #   endif /* !__WIN64__ */
  73 #endif /* _WIN64 */
  74
  75 #if defined(__WINDOWS__)
  76     /* Select wxMSW under Windows if no other port is specified. */
  77 #   if !defined(__WXMSW__) && !defined(__WXMOTIF__) && !defined(__WXGTK__) && !defined(__WXX11__)
  78 #       define __WXMSW__
  79 #   endif
  80
  81 #   if !defined(__WINDOWS__)
  82 #       define __WINDOWS__
  83 #   endif
  84
  85 #   ifndef _WIN32
  86 #        define _WIN32
  87 #   endif
  88
  89 #   ifndef WIN32
  90 #        define WIN32
  91 #   endif
  92
  93 #   ifndef __WIN32__
  94 #        define __WIN32__
  95 #   endif
  96 #endif /* __WINDOWS__ */
  97
  98 /* Don't use widget toolkit specific code in non-GUI code */
  99 #if defined(wxUSE_GUI) && !wxUSE_GUI
 100 #   ifdef __WXMSW__
 101 #       undef __WXMSW__
 102 #   endif
 103 #   ifdef __WXGTK__
 104 #       undef __WXGTK__
 105 #   endif
 106 #endif
 107
 108 #if defined(__WXGTK__) && defined(__WINDOWS__)
 109
 110 #   ifdef __WXMSW__
 111 #       undef __WXMSW__
 112 #   endif
 113
 114 #endif /* __WXGTK__ && __WINDOWS__ */
 115
 116 /* detect MS SmartPhone */
 117 #if defined( WIN32_PLATFORM_WFSP )
 118 #   ifndef __SMARTPHONE__
 119 #       define __SMARTPHONE__
 120 #   endif
 121 #   ifndef __WXWINCE__
 122 #       define __WXWINCE__
 123 #   endif
 124 #endif
 125
 126 /* detect PocketPC */
 127 #if defined( WIN32_PLATFORM_PSPC )
 128 #   ifndef __POCKETPC__
 129 #       define __POCKETPC__
 130 #   endif
 131 #   ifndef __WXWINCE__
 132 #       define __WXWINCE__
 133 #   endif
 134 #endif
 135
 136 /* detect Standard WinCE SDK */
 137 #if defined( WCE_PLATFORM_STANDARDSDK )
 138 #   ifndef __WINCE_STANDARDSDK__
 139 #       define __WINCE_STANDARDSDK__
 140 #   endif
 141 #   ifndef __WXWINCE__
 142 #       define __WXWINCE__
 143 #   endif
 144 #endif
 145
 146 #if defined(_WIN32_WCE) && !defined(WIN32_PLATFORM_WFSP) && !defined(WIN32_PLATFORM_PSPC)
 147 #   if (_WIN32_WCE >= 400)
 148 #       ifndef __WINCE_NET__
 149 #           define __WINCE_NET__
 150 #       endif
 151 #   elif (_WIN32_WCE >= 200)
 152 #       ifndef __HANDHELDPC__
 153 #           define __HANDHELDPC__
 154 #       endif
 155 #   endif
 156 #   ifndef __WXWINCE__
 157 #       define __WXWINCE__
 158 #   endif
 159 #endif
 160
 161 #if defined(__WXWINCE__) && defined(_MSC_VER) && (_MSC_VER == 1201)
 162     #define __EVC4__
 163 #endif
 164
 165 #if defined(__POCKETPC__) || defined(__SMARTPHONE__) || defined(__WXGPE__)
 166 #   define __WXHANDHELD__
 167 #endif
 168
 169 #ifdef __ANDROID__
 170 #   define __WXANDROID__
 171 #   include "wx/android/config_android.h"
 172 #endif
 173
 174 #include "wx/compiler.h"
 175
 176 /*
 177    Include wx/setup.h for the Unix platform defines generated by configure and
 178    the library compilation options
 179
 180    Note that it must be included before defining hardware symbols below as they
 181    could be already defined by configure but it must be included after defining
 182    the compiler macros above as msvc/wx/setup.h relies on them under Windows.
 183  */
 184 #include "wx/setup.h"
 185
 186 /*
 187    Convenience for any optional classes that use the wxAnyButton base class.
 188  */
 189 #if wxUSE_TOGGLEBTN || wxUSE_BUTTON
 190     #define wxHAS_ANY_BUTTON
 191 #endif
 192
 193
 194 /*
 195    Hardware platform detection.
 196
 197    VC++ defines _M_xxx symbols.
 198  */
 199 #if defined(_M_IX86) || defined(i386) || defined(__i386) || defined(__i386__)
 200     #ifndef __INTEL__
 201         #define __INTEL__
 202     #endif
 203 #endif /* x86 */
 204
 205 #if defined(_M_IA64)
 206     #ifndef __IA64__
 207         #define __IA64__
 208     #endif
 209 #endif /* ia64 */
 210
 211 #if defined(_M_MPPC) || defined(__PPC__) || defined(__ppc__)
 212     #ifndef __POWERPC__
 213         #define __POWERPC__
 214     #endif
 215 #endif /* alpha */
 216
 217 #if defined(_M_ALPHA) || defined(__AXP__)
 218     #ifndef __ALPHA__
 219         #define __ALPHA__
 220     #endif
 221 #endif /* alpha */
 222
 223
 224 /*
 225    adjust the Unicode setting: wxUSE_UNICODE should be defined as 0 or 1
 226    and is used by wxWidgets, _UNICODE and/or UNICODE may be defined or used by
 227    the system headers so bring these settings in sync
 228  */
 229
 230 /* set wxUSE_UNICODE to 1 if UNICODE or _UNICODE is defined */
 231 #if defined(_UNICODE) || defined(UNICODE)
 232 #   undef wxUSE_UNICODE
 233 #   define wxUSE_UNICODE 1
 234 #else /* !UNICODE */
 235 #   ifndef wxUSE_UNICODE
 236 #       define wxUSE_UNICODE 0
 237 #   endif
 238 #endif /* UNICODE/!UNICODE */
 239
 240 /* and vice versa: define UNICODE and _UNICODE if wxUSE_UNICODE is 1 */
 241 #if wxUSE_UNICODE
 242 #   ifndef _UNICODE
 243 #       define _UNICODE
 244 #   endif
 245 #   ifndef UNICODE
 246 #       define UNICODE
 247 #   endif
 248 #endif /* wxUSE_UNICODE */
 249
 250
 251 /*
 252    test for old versions of Borland C, normally need at least 5.82, Turbo
 253    explorer, available for free at http://www.turboexplorer.com/downloads
 254 */
 255
 256
 257 /*
 258     Older versions of Borland C have some compiler bugs that need
 259     workarounds. Mostly pertains to the free command line compiler 5.5.1.
 260 */
 261 #if defined(__BORLANDC__) && (__BORLANDC__ <= 0x551)
 262     /*
 263         The Borland free compiler is unable to handle overloaded enum
 264         comparisons under certain conditions e.g. when any class has a
 265         conversion ctor for an integral type and there's an overload to
 266         compare between an integral type and that class type.
 267     */
 268 #   define wxCOMPILER_NO_OVERLOAD_ON_ENUM
 269
 270     /*
 271         This is needed to overcome bugs in 5.5.1 STL, linking errors will
 272         result if it is not defined.
 273      */
 274 #   define _RWSTD_COMPILE_INSTANTIATE
 275
 276     /*
 277         Preprocessor in older Borland compilers have major problems
 278         concatenating with ##. Specifically, if the string operands being
 279         concatenated have special meaning (e.g. L"str", 123i64 etc)
 280         then ## will not concatenate the operands correctly.
 281
 282         As a workaround, define wxPREPEND* and wxAPPEND* without using
 283         wxCONCAT_HELPER.
 284     */
 285 #   define wxCOMPILER_BROKEN_CONCAT_OPER
 286 #endif /* __BORLANDC__ */
 287
 288 /*
 289    OS: first of all, test for MS-DOS platform. We must do this before testing
 290        for Unix, because DJGPP compiler defines __unix__ under MS-DOS
 291  */
 292 #if defined(__GO32__) || defined(__DJGPP__) || defined(__DOS__)
 293 #    ifndef __DOS__
 294 #        define __DOS__
 295 #    endif
 296     /* size_t is the same as unsigned int for Watcom 11 compiler, */
 297     /* so define it if it hadn't been done by configure yet */
 298 #    if !defined(wxSIZE_T_IS_UINT) && !defined(wxSIZE_T_IS_ULONG)
 299 #        ifdef __WATCOMC__
 300 #            define wxSIZE_T_IS_UINT
 301 #        endif
 302 #        ifdef __DJGPP__
 303 #            define wxSIZE_T_IS_ULONG
 304 #        endif
 305 #    endif
 306
 307 /*
 308    OS: then test for generic Unix defines, then for particular flavours and
 309        finally for Unix-like systems
 310        Mac OS X matches this case (__MACH__), prior Mac OS do not.
 311  */
 312 #elif defined(__UNIX__) || defined(__unix) || defined(__unix__) || \
 313       defined(____SVR4____) || defined(__LINUX__) || defined(__sgi) || \
 314       defined(__hpux) || defined(sun) || defined(__SUN__) || defined(_AIX) || \
 315       defined(__EMX__) || defined(__VMS) || defined(__BEOS__) || defined(__MACH__)
 316
 317 #    define __UNIX_LIKE__
 318
 319     /* Helps SGI compilation, apparently */
 320 #    ifdef __SGI__
 321 #        ifdef __GNUG__
 322 #            define __need_wchar_t
 323 #        else /* !gcc */
 324             /*
 325                Note I use the term __SGI_CC__ for both cc and CC, its not a good
 326                idea to mix gcc and cc/CC, the name mangling is different
 327              */
 328 #            define __SGI_CC__
 329 #        endif /* gcc/!gcc */
 330
 331         /* system headers use this symbol and not __cplusplus in some places */
 332 #       ifndef _LANGUAGE_C_PLUS_PLUS
 333 #           define _LANGUAGE_C_PLUS_PLUS
 334 #       endif
 335 #    endif  /* SGI */
 336
 337 #    ifdef __EMX__
 338 #        define OS2EMX_PLAIN_CHAR
 339 #    endif
 340 #    if defined(__INNOTEK_LIBC__)
 341         /* Ensure visibility of strnlen declaration */
 342 #        define _GNU_SOURCE
 343 #    endif
 344
 345     /* define __HPUX__ for HP-UX where standard macro is __hpux */
 346 #    if defined(__hpux) && !defined(__HPUX__)
 347 #        define __HPUX__
 348 #    endif /* HP-UX */
 349
 350 #    if defined(__CYGWIN__) || defined(__WINE__)
 351 #        if !defined(wxSIZE_T_IS_UINT)
 352 #            define wxSIZE_T_IS_UINT
 353 #        endif
 354 #    endif
 355
 356     /*  All of these should already be defined by including configure-
 357         generated setup.h but we wish to support Xcode compilation without
 358         requiring the user to define these himself.
 359      */
 360 #    if defined(__APPLE__) && defined(__MACH__)
 361 #        ifndef __UNIX__
 362 #            define __UNIX__ 1
 363 #        endif
 364 #        ifndef __BSD__
 365 #            define __BSD__ 1
 366 #        endif
 367         /*  __DARWIN__ is our own define to mean OS X or pure Darwin */
 368 #        ifndef __DARWIN__
 369 #            define __DARWIN__ 1
 370 #        endif
 371         /*  NOTE: TARGET_CARBON is actually a 0/1 and must be 1 for OS X */
 372 #        ifndef TARGET_CARBON
 373 #            define TARGET_CARBON 1
 374 #        endif
 375         /* OS X uses unsigned long size_t for both ILP32 and LP64 modes. */
 376 #        if !defined(wxSIZE_T_IS_UINT) && !defined(wxSIZE_T_IS_ULONG)
 377 #            define wxSIZE_T_IS_ULONG
 378 #        endif
 379 #    endif
 380
 381 /*
 382    OS: OS/2
 383  */
 384 #elif defined(__OS2__)
 385
 386     /* wxOS2 vs. non wxOS2 ports on OS2 platform */
 387 #    if !defined(__WXMOTIF__) && !defined(__WXGTK__) && !defined(__WXX11__)
 388 #        ifndef __WXPM__
 389 #            define __WXPM__
 390 #        endif
 391 #    endif
 392
 393 #    if defined(__IBMCPP__)
 394 #        define __VISAGEAVER__ __IBMCPP__
 395 #    endif
 396
 397     /* Place other OS/2 compiler environment defines here */
 398 #    if defined(__VISAGECPP__)
 399         /* VisualAge is the only thing that understands _Optlink */
 400 #        define LINKAGEMODE _Optlink
 401 #    endif
 402 #    define wxSIZE_T_IS_UINT
 403
 404 /*
 405    OS: Windows
 406  */
 407 #elif defined(__WINDOWS__)
 408
 409     /* to be changed for Win64! */
 410 #    ifndef __WIN32__
 411 #        error "__WIN32__ should be defined for Win32 and Win64, Win16 is not supported"
 412 #    endif
 413
 414     /* size_t is the same as unsigned int for all Windows compilers we know, */
 415     /* so define it if it hadn't been done by configure yet */
 416 #    if !defined(wxSIZE_T_IS_UINT) && !defined(wxSIZE_T_IS_ULONG) && !defined(__WIN64__)
 417 #        define wxSIZE_T_IS_UINT
 418 #    endif
 419 #else
 420 #   error "Unknown platform."
 421 #endif  /* OS */
 422
 423 /*
 424    if we're on a Unix system but didn't use configure (so that setup.h didn't
 425    define __UNIX__), do define __UNIX__ now
 426  */
 427 #if !defined(__UNIX__) && defined(__UNIX_LIKE__)
 428 #    define __UNIX__
 429 #endif /* Unix */
 430
 431 #if defined(__WXMOTIF__) || defined(__WXX11__)
 432 #    define __X__
 433 #endif
 434
 435 /*
 436    We get "Large Files (ILP32) not supported in strict ANSI mode." #error
 437    from HP-UX standard headers when compiling with g++ without this:
 438  */
 439 #if defined(__HPUX__) && !defined(__STDC_EXT__)
 440 #   define __STDC_EXT__ 1
 441 #endif
 442
 443 /* Force linking against required libraries under Windows: */
 444 #ifdef __WXWINCE__
 445 #   include "wx/msw/wince/libraries.h"
 446 #elif defined __WINDOWS__
 447 #   include "wx/msw/libraries.h"
 448 #endif
 449
 450 #if defined(__BORLANDC__) || (defined(__GNUC__) && __GNUC__ < 3)
 451 #define wxNEEDS_CHARPP
 452 #endif
 453
 454 #if ( defined( __GNUWIN32__ ) || defined( __MINGW32__ ) || \
 455     ( defined( __CYGWIN__ ) && defined( __WINDOWS__ ) ) || \
 456       wxCHECK_WATCOM_VERSION(1,0) ) && \
 457     !defined(__DOS__) && \
 458     !defined(__WXPM__) && \
 459     !defined(__WXMOTIF__) && \
 460     !defined(__WXX11__)
 461 #    include "wx/msw/gccpriv.h"
 462 #else
 463 #    undef wxCHECK_W32API_VERSION
 464 #    define wxCHECK_W32API_VERSION(maj, min) (0)
 465 #endif
 466
 467
 468 /*
 469     Handle Darwin gcc universal compilation.  Don't do this in an Apple-
 470     specific case since no sane compiler should be defining either
 471     __BIG_ENDIAN__ or __LITTLE_ENDIAN__ unless it really is generating
 472     code that will be hosted on a machine with the appropriate endianness.
 473     If a compiler defines neither, assume the user or configure set
 474     WORDS_BIGENDIAN appropriately.
 475  */
 476 #if defined(__BIG_ENDIAN__)
 477 #    undef WORDS_BIGENDIAN
 478 #    define WORDS_BIGENDIAN 1
 479 #elif defined(__LITTLE_ENDIAN__)
 480 #    undef WORDS_BIGENDIAN
 481 #elif defined(__WXMAC__) && !defined(WORDS_BIGENDIAN)
 482 /*  According to Stefan even ancient Mac compilers defined __BIG_ENDIAN__ */
 483 #    warning "Compiling wxMac with probably wrong endianness"
 484 #endif
 485 /* also the 32/64 bit universal builds must be handled accordingly */
 486 #ifdef __DARWIN__
 487 #    ifdef __LP64__
 488 #        undef SIZEOF_VOID_P
 489 #        undef SIZEOF_LONG
 490 #        undef SIZEOF_SIZE_T
 491 #        define SIZEOF_VOID_P 8
 492 #        define SIZEOF_LONG 8
 493 #        define SIZEOF_SIZE_T 8
 494 #    else
 495 #        undef SIZEOF_VOID_P
 496 #        undef SIZEOF_LONG
 497 #        undef SIZEOF_SIZE_T
 498 #        define SIZEOF_VOID_P 4
 499 #        define SIZEOF_LONG 4
 500 #        define SIZEOF_SIZE_T 4
 501 #    endif
 502 #endif
 503
 504 /*
 505     Define various OS X symbols before including wx/chkconf.h which uses them.
 506
 507     __WXOSX_MAC__ means Mac OS X, non embedded
 508     __WXOSX_IPHONE__ means OS X iPhone
 509  */
 510
 511 /*
 512     Normally all of __WXOSX_XXX__, __WXOSX__ and __WXMAC__ are defined by
 513     configure but ensure that we also define them if configure was not used for
 514     whatever reason.
 515
 516     The primary symbol remains __WXOSX_XXX__ one, __WXOSX__ exists to allow
 517     checking for any OS X port (Carbon and Cocoa) and __WXMAC__ is an old name
 518     for it.
 519  */
 520 #if defined(__WXOSX_CARBON__) || defined(__WXOSX_COCOA__) || defined(__WXOSX_IPHONE__)
 521 #   ifndef __WXOSX__
 522 #       define __WXOSX__ 1
 523 #   endif
 524 #   ifndef __WXMAC__
 525 #       define __WXMAC__ 1
 526 #   endif
 527 #endif
 528
 529 #ifdef __WXOSX__
 530 /* setup precise defines according to sdk used */
 531 #   include <TargetConditionals.h>
 532 #   if defined(__WXOSX_IPHONE__)
 533 #       if !( defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE )
 534 #           error "incorrect SDK for an iPhone build"
 535 #       endif
 536 #   else
 537 #       if wxUSE_GUI && !(defined(__WXOSX_CARBON__) || defined(__WXOSX_COCOA__))
 538 #           error "one of __WXOSX_IPHONE__, __WXOSX_CARBON__ or __WXOSX_COCOA__ must be defined for the GUI build"
 539 #       endif
 540 #       if !( defined(TARGET_OS_MAC) && TARGET_OS_MAC )
 541 #           error "incorrect SDK for a Mac OS X build"
 542 #       endif
 543 #       define __WXOSX_MAC__ 1
 544 #   endif
 545 #endif
 546
 547 #ifdef __WXOSX_MAC__
 548 #    if defined(__MACH__)
 549 #        include <AvailabilityMacros.h>
 550 #        ifndef MAC_OS_X_VERSION_10_4
 551 #           define MAC_OS_X_VERSION_10_4 1040
 552 #        endif
 553 #        ifndef MAC_OS_X_VERSION_10_5
 554 #           define MAC_OS_X_VERSION_10_5 1050
 555 #        endif
 556 #        ifndef MAC_OS_X_VERSION_10_6
 557 #           define MAC_OS_X_VERSION_10_6 1060
 558 #        endif
 559 #        ifndef MAC_OS_X_VERSION_10_7
 560 #           define MAC_OS_X_VERSION_10_7 1070
 561 #        endif
 562 #        ifndef MAC_OS_X_VERSION_10_8
 563 #           define MAC_OS_X_VERSION_10_8 1080
 564 #        endif
 565 #    else
 566 #        error "only mach-o configurations are supported"
 567 #    endif
 568 #endif
 569
 570 /*
 571     __WXOSX_OR_COCOA__ is a common define to wxOSX (Carbon or Cocoa) and wxCocoa ports under OS X.
 572
 573     DO NOT use this define in base library code.  Although wxMac has its own
 574     private base library (and thus __WXOSX_OR_COCOA__,__WXMAC__ and related defines are
 575     valid there), wxCocoa shares its library with other ports like wxGTK and wxX11.
 576
 577     To keep wx authors from screwing this up, only enable __WXOSX_OR_COCOA__ for wxCocoa when
 578     not compiling the base library.  We determine this by first checking if
 579     wxUSE_BASE is not defined.  If it is not defined, then we're not buildling
 580     the base library, and possibly not building wx at all (but actually building
 581     user code that's using wx). If it is defined then we must check to make sure
 582     it is not true.  If it is true, we're building base.
 583
 584     If you want it in the common darwin base library then use __DARWIN__.  You
 585     can use any Darwin-available libraries like CoreFoundation but please avoid
 586     using OS X libraries like Carbon or CoreServices.
 587
 588  */
 589 #if defined(__WXOSX__) || (defined(__WXCOCOA__) && (!defined(wxUSE_BASE) || !wxUSE_BASE))
 590 #   define __WXOSX_OR_COCOA__ 1
 591 #endif
 592
 593 /*
 594    check the consistency of the settings in setup.h: note that this must be
 595    done after setting wxUSE_UNICODE correctly as it is used in wx/chkconf.h
 596    and after defining the compiler macros which are used in it too
 597  */
 598 #include "wx/chkconf.h"
 599
 600
 601 /*
 602    some compilers don't support iostream.h any longer, while some of theme
 603    are not updated with <iostream> yet, so override the users setting here
 604    in such case.
 605  */
 606 #if defined(_MSC_VER) && (_MSC_VER >= 1310)
 607 #    undef wxUSE_IOSTREAMH
 608 #    define wxUSE_IOSTREAMH 0
 609 #elif defined(__DMC__) || defined(__WATCOMC__)
 610 #    undef wxUSE_IOSTREAMH
 611 #    define wxUSE_IOSTREAMH 1
 612 #elif defined(__MINGW32__)
 613 #    undef wxUSE_IOSTREAMH
 614 #    define wxUSE_IOSTREAMH 0
 615 #endif /* compilers with/without iostream.h */
 616
 617 /*
 618    old C++ headers (like <iostream.h>) declare classes in the global namespace
 619    while the new, standard ones (like <iostream>) do it in std:: namespace,
 620    unless it's an old gcc version.
 621
 622    using this macro allows constuctions like "wxSTD iostream" to work in
 623    either case
 624  */
 625 #if !wxUSE_IOSTREAMH && (!defined(__GNUC__) || ( __GNUC__ > 2 ) || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95))
 626 #    define wxSTD std::
 627 #else
 628 #    define wxSTD
 629 #endif
 630
 631 /* On OpenVMS with the most recent HP C++ compiler some function (i.e. wscanf)
 632  * are only available in the std-namespace. (BUG???)
 633  */
 634 #if defined(  __VMS ) && (__DECCXX_VER >= 70100000) && !defined(__STD_CFRONT) && !defined( __NONAMESPACE_STD )
 635 # define wxVMS_USE_STD std::
 636 #else
 637 # define wxVMS_USE_STD
 638 #endif
 639
 640 #ifdef __VMS
 641 #define XtDisplay XTDISPLAY
 642 #ifdef __WXMOTIF__
 643 #define XtParent XTPARENT
 644 #define XtScreen XTSCREEN
 645 #define XtWindow XTWINDOW
 646 #endif
 647 #endif
 648
 649 /* Choose which method we will use for updating menus
 650  * - in OnIdle, or when we receive a wxEVT_MENU_OPEN event.
 651  * Presently, only Windows, OS X and GTK+ support wxEVT_MENU_OPEN.
 652  */
 653 #ifndef wxUSE_IDLEMENUUPDATES
 654 #    if (defined(__WXMSW__) || defined(__WXGTK__) || defined(__WXOSX__)) && !defined(__WXUNIVERSAL__)
 655 #        define wxUSE_IDLEMENUUPDATES 0
 656 #    else
 657 #        define wxUSE_IDLEMENUUPDATES 1
 658 #    endif
 659 #endif
 660
 661 /*
 662  * Define symbols that are not yet in
 663  * configure or possibly some setup.h files.
 664  * They will need to be added.
 665  */
 666
 667 #ifndef wxUSE_FILECONFIG
 668 #    if wxUSE_CONFIG && wxUSE_TEXTFILE
 669 #        define wxUSE_FILECONFIG 1
 670 #    else
 671 #        define wxUSE_FILECONFIG 0
 672 #    endif
 673 #endif
 674
 675 #ifndef wxUSE_HOTKEY
 676 #    define wxUSE_HOTKEY 0
 677 #endif
 678
 679 #if !defined(wxUSE_WXDIB) && defined(__WXMSW__)
 680 #    define wxUSE_WXDIB 1
 681 #endif
 682
 683 /*
 684     Optionally supported C++ features.
 685  */
 686
 687 /*
 688     RTTI: if it is disabled in build/msw/makefile.* then this symbol will
 689     already be defined but it's also possible to do it from configure (with
 690     g++) or by editing project files with MSVC so test for it here too.
 691  */
 692 #ifndef wxNO_RTTI
 693     /*
 694         Only 4.3 defines __GXX_RTTI by default so its absence is not an
 695         indication of disabled RTTI with the previous versions.
 696      */
 697 #   if wxCHECK_GCC_VERSION(4, 3)
 698 #       ifndef __GXX_RTTI
 699 #           define wxNO_RTTI
 700 #       endif
 701 #   elif defined(_MSC_VER)
 702 #       ifndef _CPPRTTI
 703 #           define wxNO_RTTI
 704 #       endif
 705 #   endif
 706 #endif /* wxNO_RTTI */
 707
 708 #endif /* _WX_PLATFORM_H_ */