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__ /* for backwards compat in user code still defined */
  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 #        error "only mach-o configurations are supported"
  49 #    endif
  50 #endif
  51
  52 /*
  53     __WXOSX__ is a common define to wxMac (Carbon) and wxCocoa ports under OS X.
  54
  55     DO NOT use this define in base library code.  Although wxMac has its own
  56     private base library (and thus __WXOSX__,__WXMAC__ and related defines are
  57     valid there), wxCocoa shares its library with other ports like wxGTK and wxX11.
  58
  59     To keep wx authors from screwing this up, only enable __WXOSX__ for wxCocoa when
  60     not compiling the base library.  We determine this by first checking if
  61     wxUSE_BASE is not defined.  If it is not defined, then we're not buildling
  62     the base library, and possibly not building wx at all (but actually building
  63     user code that's using wx). If it is defined then we must check to make sure
  64     it is not true.  If it is true, we're building base.
  65
  66     If you want it in the common darwin base library then use __DARWIN__.  You
  67     can use any Darwin-available libraries like CoreFoundation but please avoid
  68     using OS X libraries like Carbon or CoreServices.
  69
  70  */
  71 #if defined(__WXMAC_OSX__) || (defined(__WXCOCOA__) && (!defined(wxUSE_BASE) || !wxUSE_BASE))
  72 #   define __WXOSX__
  73 #endif
  74
  75 /*
  76    first define Windows symbols if they're not defined on the command line: we
  77    can autodetect everything we need if _WIN32 is defined
  78  */
  79 #if defined(__CYGWIN__) && defined(__WINDOWS__)
  80 #    ifndef __WXMSW__
  81 #        define __WXMSW__
  82 #    endif
  83
  84 #    ifndef _WIN32
  85 #        define _WIN32
  86 #    endif
  87
  88 #    ifndef WIN32
  89 #        define WIN32
  90 #    endif
  91 #endif
  92
  93 #if defined(__PALMOS__)
  94 #   if __PALMOS__ == 0x06000000
  95 #       define __WXPALMOS6__
  96 #   endif
  97 #   if __PALMOS__ == 0x05000000
  98 #       define __WXPALMOS5__
  99 #   endif
 100 #   ifndef __WXPALMOS__
 101 #       define __WXPALMOS__
 102 #   endif
 103 #   ifdef __WXMSW__
 104 #       undef __WXMSW__
 105 #   endif
 106 #   ifdef __WINDOWS__
 107 #       undef __WINDOWS__
 108 #   endif
 109 #   ifdef __WIN32__
 110 #       undef __WIN32__
 111 #   endif
 112 #   ifdef WIN32
 113 #       undef WIN32
 114 #   endif
 115 #   ifdef _WIN32
 116 #       undef _WIN32
 117 #   endif
 118 #endif
 119
 120 #if defined(_WIN64)
 121 #    ifndef _WIN32
 122         /*
 123             a lot of code (mistakenly) uses #ifdef _WIN32 to either test for
 124             Windows or to test for !__WIN16__, so we must define _WIN32 for
 125             Win64 as well to ensure that the existing code continues to work.
 126          */
 127 #       define _WIN32
 128 #   endif /* !_WIN32 */
 129
 130 #   ifndef __WIN64__
 131 #       define __WIN64__
 132 #   endif /* !__WIN64__ */
 133 #endif /* _WIN64 */
 134
 135 #if (defined(_WIN32) || defined(WIN32) || defined(__NT__) || defined(__WXWINCE__)) \
 136     && !defined(__WXMOTIF__) && !defined(__WXGTK__) && !defined(__WXX11__)
 137 #    ifndef __WXMSW__
 138 #        define __WXMSW__
 139 #    endif
 140
 141 #    ifndef __WIN32__
 142 #        define __WIN32__
 143 #    endif
 144 #endif /* Win32 */
 145
 146 #if defined(__WXMSW__) || defined(__WIN32__)
 147 #   if !defined(__WINDOWS__)
 148 #       define __WINDOWS__
 149 #   endif
 150 #endif
 151
 152 /* detect MS SmartPhone */
 153 #if defined( WIN32_PLATFORM_WFSP )
 154 #   ifndef __SMARTPHONE__
 155 #       define __SMARTPHONE__
 156 #   endif
 157 #   ifndef __WXWINCE__
 158 #       define __WXWINCE__
 159 #   endif
 160 #endif
 161
 162 /* detect PocketPC */
 163 #if defined( WIN32_PLATFORM_PSPC )
 164 #   ifndef __POCKETPC__
 165 #       define __POCKETPC__
 166 #   endif
 167 #   ifndef __WXWINCE__
 168 #       define __WXWINCE__
 169 #   endif
 170 #endif
 171
 172 /* detect Standard WinCE SDK */
 173 #if defined( WCE_PLATFORM_STANDARDSDK )
 174 #   ifndef __WINCE_STANDARDSDK__
 175 #       define __WINCE_STANDARDSDK__
 176 #   endif
 177 #   ifndef __WXWINCE__
 178 #       define __WXWINCE__
 179 #   endif
 180 #endif
 181
 182 #if defined(_WIN32_WCE) && !defined(WIN32_PLATFORM_WFSP) && !defined(WIN32_PLATFORM_PSPC)
 183 #   if (_WIN32_WCE >= 400)
 184 #       ifndef __WINCE_NET__
 185 #           define __WINCE_NET__
 186 #       endif
 187 #   elif (_WIN32_WCE >= 200)
 188 #       ifndef __HANDHELDPC__
 189 #           define __HANDHELDPC__
 190 #       endif
 191 #   endif
 192 #   ifndef __WXWINCE__
 193 #       define __WXWINCE__
 194 #   endif
 195 #endif
 196
 197 #if defined(__POCKETPC__) || defined(__SMARTPHONE__) || defined(__WXGPE__)
 198 #   define __WXHANDHELD__
 199 #endif
 200
 201 /*
 202    Include wx/setup.h for the Unix platform defines generated by configure and
 203    the library compilation options
 204
 205    Note that it must be included before defining hardware symbols below as they
 206    could be already defined by configure
 207  */
 208 #include "wx/setup.h"
 209
 210 /*
 211    Hardware platform detection.
 212
 213    VC++ defines _M_xxx symbols.
 214  */
 215 #if defined(_M_IX86) || defined(i386) || defined(__i386) || defined(__i386__)
 216     #ifndef __INTEL__
 217         #define __INTEL__
 218     #endif
 219 #endif /* x86 */
 220
 221 #if defined(_M_IA64)
 222     #ifndef __IA64__
 223         #define __IA64__
 224     #endif
 225 #endif /* ia64 */
 226
 227 #if defined(_M_MPPC) || defined(__PPC__) || defined(__ppc__)
 228     #ifndef __POWERPC__
 229         #define __POWERPC__
 230     #endif
 231 #endif /* alpha */
 232
 233 #if defined(_M_ALPHA) || defined(__AXP__)
 234     #ifndef __ALPHA__
 235         #define __ALPHA__
 236     #endif
 237 #endif /* alpha */
 238
 239
 240 /*
 241    adjust the Unicode setting: wxUSE_UNICODE should be defined as 0 or 1
 242    and is used by wxWidgets, _UNICODE and/or UNICODE may be defined or used by
 243    the system headers so bring these settings in sync
 244  */
 245
 246 /* set wxUSE_UNICODE to 1 if UNICODE or _UNICODE is defined */
 247 #if defined(_UNICODE) || defined(UNICODE)
 248 #   undef wxUSE_UNICODE
 249 #   define wxUSE_UNICODE 1
 250 #else /* !UNICODE */
 251 #   ifndef wxUSE_UNICODE
 252 #       define wxUSE_UNICODE 0
 253 #   endif
 254 #endif /* UNICODE/!UNICODE */
 255
 256 /* and vice versa: define UNICODE and _UNICODE if wxUSE_UNICODE is 1 */
 257 #if wxUSE_UNICODE
 258 #   ifndef _UNICODE
 259 #       define _UNICODE
 260 #   endif
 261 #   ifndef UNICODE
 262 #       define UNICODE
 263 #   endif
 264 #endif /* wxUSE_UNICODE */
 265
 266 #if defined( __MWERKS__ ) && !defined(__INTEL__)
 267 /* otherwise MSL headers bring in WIN32 dependant APIs */
 268 #undef UNICODE
 269 #endif
 270
 271
 272 /* test for old versions of Borland C, normally need at least 5.82, Turbo explorer,
 273    available for free at http://www.turboexplorer.com/downloads
 274 */
 275 #if defined(__BORLANDC__) && (__BORLANDC__ < 0x550)
 276 #error "This version of wxWidgets requires a newer version of Borland - we recommend 5.82 (Turbo Explorer); You may at your own risk remove this line and try your system"
 277 #endif /* __BORLANDC__ */
 278
 279 #if defined(__BORLANDC__) && (__BORLANDC__ < 0x582) && (__BORLANDC__ > 0x559)
 280 #error "This version of wxWidgets has problems with Borland 5.6; we recommend getting Borland 5.82 (Turbo Explorer); You may at your own risk remove this line and try your system"
 281 #endif /* __BORLANDC__ */
 282
 283
 284 /*
 285    This macro can be used to test the Open Watcom version.
 286 */
 287 #ifndef __WATCOMC__
 288 #   define wxWATCOM_VERSION(major,minor) 0
 289 #   define wxCHECK_WATCOM_VERSION(major,minor) 0
 290 #   define wxONLY_WATCOM_EARLIER_THAN(major,minor) 0
 291 #elif defined(__WATCOMC__) && __WATCOMC__ < 1200
 292 #   error "Only Open Watcom is supported in this release"
 293 #else
 294 #   define wxWATCOM_VERSION(major,minor) ( major * 100 + minor * 10 + 1100 )
 295 #   define wxCHECK_WATCOM_VERSION(major,minor) ( __WATCOMC__ >= wxWATCOM_VERSION(major,minor) )
 296 #   define wxONLY_WATCOM_EARLIER_THAN(major,minor) ( __WATCOMC__ < wxWATCOM_VERSION(major,minor) )
 297 #endif
 298
 299 /*
 300    OS: first of all, test for MS-DOS platform. We must do this before testing
 301        for Unix, because DJGPP compiler defines __unix__ under MS-DOS
 302  */
 303 #if defined(__GO32__) || defined(__DJGPP__) || defined(__DOS__)
 304 #    ifndef __DOS__
 305 #        define __DOS__
 306 #    endif
 307     /* size_t is the same as unsigned int for Watcom 11 compiler, */
 308     /* so define it if it hadn't been done by configure yet */
 309 #    if !defined(wxSIZE_T_IS_UINT) && !defined(wxSIZE_T_IS_ULONG)
 310 #        ifdef __WATCOMC__
 311 #            define wxSIZE_T_IS_UINT
 312 #        endif
 313 #        ifdef __DJGPP__
 314 #            define wxSIZE_T_IS_ULONG
 315 #        endif
 316 #    endif
 317
 318 /*
 319    OS: then test for generic Unix defines, then for particular flavours and
 320        finally for Unix-like systems
 321        Mac OS X matches this case (__MACH__), prior Mac OS do not.
 322  */
 323 #elif defined(__UNIX__) || defined(__unix) || defined(__unix__) || \
 324       defined(____SVR4____) || defined(__LINUX__) || defined(__sgi) || \
 325       defined(__hpux) || defined(sun) || defined(__SUN__) || defined(_AIX) || \
 326       defined(__EMX__) || defined(__VMS) || defined(__BEOS__) || defined(__MACH__)
 327
 328 #    define __UNIX_LIKE__
 329
 330     /* Helps SGI compilation, apparently */
 331 #    ifdef __SGI__
 332 #        ifdef __GNUG__
 333 #            define __need_wchar_t
 334 #        else /* !gcc */
 335             /*
 336                Note I use the term __SGI_CC__ for both cc and CC, its not a good
 337                idea to mix gcc and cc/CC, the name mangling is different
 338              */
 339 #            define __SGI_CC__
 340 #        endif /* gcc/!gcc */
 341
 342         /* system headers use this symbol and not __cplusplus in some places */
 343 #       ifndef _LANGUAGE_C_PLUS_PLUS
 344 #           define _LANGUAGE_C_PLUS_PLUS
 345 #       endif
 346 #    endif  /* SGI */
 347
 348 #    if defined(__SUNPRO_CC)
 349 #       ifndef __SUNCC__
 350 #           define __SUNCC__ __SUNPRO_CC
 351 #       endif /* Sun CC */
 352 #    endif /* Sun CC */
 353
 354 #    ifdef __EMX__
 355 #        define OS2EMX_PLAIN_CHAR
 356 #    endif
 357
 358     /* define __HPUX__ for HP-UX where standard macro is __hpux */
 359 #    if defined(__hpux) && !defined(__HPUX__)
 360 #        define __HPUX__
 361 #    endif /* HP-UX */
 362
 363 #    if defined(__CYGWIN__) || defined(__WINE__)
 364 #        if !defined(wxSIZE_T_IS_UINT)
 365 #            define wxSIZE_T_IS_UINT
 366 #        endif
 367 #    endif
 368
 369     /*  All of these should already be defined by including configure-
 370         generated setup.h but we wish to support Xcode compilation without
 371         requiring the user to define these himself.
 372      */
 373 #    if defined(__APPLE__) && defined(__MACH__)
 374 #        ifndef __UNIX__
 375 #            define __UNIX__ 1
 376 #        endif
 377 #        ifndef __BSD__
 378 #            define __BSD__ 1
 379 #        endif
 380         /*  __DARWIN__ is our own define to mean OS X or pure Darwin */
 381 #        ifndef __DARWIN__
 382 #            define __DARWIN__ 1
 383 #        endif
 384         /*  NOTE: TARGET_CARBON is actually a 0/1 and must be 1 for OS X */
 385 #        ifndef TARGET_CARBON
 386 #            define TARGET_CARBON 1
 387 #        endif
 388         /* OS X uses unsigned long size_t for both ILP32 and LP64 modes. */
 389 #        if !defined(wxSIZE_T_IS_UINT) && !defined(wxSIZE_T_IS_ULONG)
 390 #            define wxSIZE_T_IS_ULONG
 391 #        endif
 392 #    endif
 393
 394 /*
 395    OS: Classic Mac OS
 396  */
 397 #elif defined(applec) || \
 398       defined(THINK_C) || \
 399       (defined(__MWERKS__) && !defined(__INTEL__))
 400       /* MacOS */
 401 #    if !defined(wxSIZE_T_IS_UINT) && !defined(wxSIZE_T_IS_ULONG)
 402 #        define wxSIZE_T_IS_ULONG
 403 #    endif
 404
 405 /*
 406    OS: OS/2
 407  */
 408 #elif defined(__OS2__)
 409
 410     /* wxOS2 vs. non wxOS2 ports on OS2 platform */
 411 #    if !defined(__WXMOTIF__) && !defined(__WXGTK__) && !defined(__WXX11__)
 412 #        ifndef __WXPM__
 413 #            define __WXPM__
 414 #        endif
 415 #    endif
 416
 417 #    if defined(__IBMCPP__)
 418 #        define __VISAGEAVER__ __IBMCPP__
 419 #    endif
 420
 421     /* Place other OS/2 compiler environment defines here */
 422 #    if defined(__VISAGECPP__)
 423         /* VisualAge is the only thing that understands _Optlink */
 424 #        define LINKAGEMODE _Optlink
 425 #    endif
 426 #    define wxSIZE_T_IS_UINT
 427
 428 /*
 429    OS: Palm OS
 430  */
 431 #elif defined(__PALMOS__)
 432 #    ifdef __WIN32__
 433 #        error "__WIN32__ should not be defined for PalmOS"
 434 #    endif
 435 #    ifdef __WINDOWS__
 436 #        error "__WINDOWS__ should not be defined for PalmOS"
 437 #    endif
 438 #    ifdef __WXMSW__
 439 #        error "__WXMSW__ should not be defined for PalmOS"
 440 #    endif
 441
 442 /*
 443    OS: Otherwise it must be Windows
 444  */
 445 #else   /* Windows */
 446 #    ifndef __WINDOWS__
 447 #        define __WINDOWS__
 448 #    endif  /* Windows */
 449
 450     /* to be changed for Win64! */
 451 #    ifndef __WIN32__
 452 #        error "__WIN32__ should be defined for Win32 and Win64, Win16 is not supported"
 453 #    endif
 454
 455     /*
 456        define another standard symbol for Microsoft Visual C++: the standard
 457        one (_MSC_VER) is also defined by Metrowerks compiler
 458      */
 459 #    if defined(_MSC_VER) && !defined(__MWERKS__)
 460 #        define __VISUALC__ _MSC_VER
 461 #    elif defined(__BCPLUSPLUS__) && !defined(__BORLANDC__)
 462 #        define __BORLANDC__
 463 #    elif defined(__WATCOMC__)
 464 #    elif defined(__SC__)
 465 #        define __SYMANTECC__
 466 #    endif  /* compiler */
 467
 468     /* size_t is the same as unsigned int for all Windows compilers we know, */
 469     /* so define it if it hadn't been done by configure yet */
 470 #    if !defined(wxSIZE_T_IS_UINT) && !defined(wxSIZE_T_IS_ULONG)
 471 #        define wxSIZE_T_IS_UINT
 472 #    endif
 473 #endif  /* OS */
 474
 475 /*
 476    if we're on a Unix system but didn't use configure (so that setup.h didn't
 477    define __UNIX__), do define __UNIX__ now
 478  */
 479 #if !defined(__UNIX__) && defined(__UNIX_LIKE__)
 480 #    define __UNIX__
 481 #endif /* Unix */
 482
 483 #if defined(__WXMOTIF__) || defined(__WXX11__)
 484 #    define __X__
 485 #endif
 486
 487 #ifdef __SC__
 488 #    ifdef __DMC__
 489 #         define __DIGITALMARS__
 490 #    else
 491 #         define __SYMANTEC__
 492 #    endif
 493 #endif
 494
 495 #ifdef __INTEL_COMPILER
 496 #   define __INTELC__
 497 #endif
 498
 499 /*
 500    We get "Large Files (ILP32) not supported in strict ANSI mode." #error
 501    from HP-UX standard headers when compiling with g++ without this:
 502  */
 503 #if defined(__HPUX__) && !defined(__STDC_EXT__)
 504 #   define __STDC_EXT__ 1
 505 #endif
 506
 507 /* Force linking against required libraries under Windows: */
 508 #ifdef __WXWINCE__
 509 #   include "wx/msw/wince/libraries.h"
 510 #elif defined __WINDOWS__
 511 #   include "wx/msw/libraries.h"
 512 #endif
 513
 514 /*
 515    This macro can be used to test the gcc version and can be used like this:
 516
 517 #    if wxCHECK_GCC_VERSION(3, 1)
 518         ... we have gcc 3.1 or later ...
 519 #    else
 520         ... no gcc at all or gcc < 3.1 ...
 521 #    endif
 522 */
 523 #if defined(__GNUC__) && defined(__GNUC_MINOR__)
 524     #define wxCHECK_GCC_VERSION( major, minor ) \
 525         ( ( __GNUC__ > (major) ) \
 526             || ( __GNUC__ == (major) && __GNUC_MINOR__ >= (minor) ) )
 527 #else
 528     #define wxCHECK_GCC_VERSION( major, minor ) 0
 529 #endif
 530
 531 #if defined(__BORLANDC__) || (defined(__GNUC__) && __GNUC__ < 3)
 532 #define wxNEEDS_CHARPP
 533 #endif
 534
 535 /*
 536    This macro can be used to check that the version of mingw32 compiler is
 537    at least maj.min
 538  */
 539 #if ( defined( __GNUWIN32__ ) || defined( __MINGW32__ ) || \
 540     ( defined( __CYGWIN__ ) && defined( __WINDOWS__ ) ) || \
 541       wxCHECK_WATCOM_VERSION(1,0) ) && \
 542     !defined(__DOS__) && \
 543     !defined(__WXPM__) && \
 544     !defined(__WXMOTIF__) && \
 545     !defined(__WXGTK__) && \
 546     !defined(__WXX11__) && \
 547     !defined(__WXPALMOS__)
 548 #    include "wx/msw/gccpriv.h"
 549 #else
 550 #    undef wxCHECK_W32API_VERSION
 551 #    define wxCHECK_W32API_VERSION(maj, min) (0)
 552 #endif
 553
 554 /**
 555     This is similar to wxCHECK_GCC_VERSION but for Sun CC compiler.
 556  */
 557 #ifdef __SUNCC__
 558     /*
 559        __SUNCC__ is 0xVRP where V is major version, R release and P patch level
 560      */
 561     #define wxCHECK_SUNCC_VERSION(maj, min) (__SUNCC__ >= (((maj)<<8) | ((min)<<4)))
 562 #else
 563     #define wxCHECK_SUNCC_VERSION(maj, min) (0)
 564 #endif
 565
 566 #if defined (__WXMSW__)
 567 #    if !defined(__WATCOMC__)
 568 #        define wxHAVE_RAW_BITMAP
 569 #    endif
 570 #endif
 571
 572 /*
 573     Handle Darwin gcc universal compilation.  Don't do this in an Apple-
 574     specific case since no sane compiler should be defining either
 575     __BIG_ENDIAN__ or __LITTLE_ENDIAN__ unless it really is generating
 576     code that will be hosted on a machine with the appropriate endianness.
 577     If a compiler defines neither, assume the user or configure set
 578     WORDS_BIGENDIAN appropriately.
 579  */
 580 #if defined(__BIG_ENDIAN__)
 581 #    undef WORDS_BIGENDIAN
 582 #    define WORDS_BIGENDIAN 1
 583 #elif defined(__LITTLE_ENDIAN__)
 584 #    undef WORDS_BIGENDIAN
 585 #elif defined(__WXMAC__) && !defined(WORDS_BIGENDIAN)
 586 /*  According to Stefan even ancient Mac compilers defined __BIG_ENDIAN__ */
 587 #    warning "Compiling wxMac with probably wrong endianness"
 588 #endif
 589
 590 /*
 591    check the consistency of the settings in setup.h: note that this must be
 592    done after setting wxUSE_UNICODE correctly as it is used in wx/chkconf.h
 593    and after defining the compiler macros which are used in it too
 594  */
 595 #include "wx/chkconf.h"
 596
 597
 598 /*
 599    some compilers don't support iostream.h any longer, while some of theme
 600    are not updated with <iostream> yet, so override the users setting here
 601    in such case.
 602  */
 603 #if defined(_MSC_VER) && (_MSC_VER >= 1310)
 604 #    undef wxUSE_IOSTREAMH
 605 #    define wxUSE_IOSTREAMH 0
 606 #elif defined(__DMC__) || defined(__WATCOMC__)
 607 #    undef wxUSE_IOSTREAMH
 608 #    define wxUSE_IOSTREAMH 1
 609 #elif defined(__MINGW32__)
 610 #    undef wxUSE_IOSTREAMH
 611 #    define wxUSE_IOSTREAMH 0
 612 #endif /* compilers with/without iostream.h */
 613
 614 /*
 615    old C++ headers (like <iostream.h>) declare classes in the global namespace
 616    while the new, standard ones (like <iostream>) do it in std:: namespace,
 617    unless it's an old gcc version.
 618
 619    using this macro allows constuctions like "wxSTD iostream" to work in
 620    either case
 621  */
 622 #if !wxUSE_IOSTREAMH && (!defined(__GNUC__) || ( __GNUC__ > 2 ) || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95))
 623 #    define wxSTD std::
 624 #else
 625 #    define wxSTD
 626 #endif
 627
 628 /* On OpenVMS with the most recent HP C++ compiler some function (i.e. wscanf)
 629  * are only available in the std-namespace. (BUG???)
 630  */
 631 #if defined(  __VMS ) && (__DECCXX_VER >= 70100000) && !defined(__STD_CFRONT) && !defined( __NONAMESPACE_STD )
 632 # define wxVMS_USE_STD std::
 633 #else
 634 # define wxVMS_USE_STD
 635 #endif
 636
 637 /* Choose which method we will use for updating menus
 638  * - in OnIdle, or when we receive a wxEVT_MENU_OPEN event.
 639  * Presently, only Windows and GTK+ support wxEVT_MENU_OPEN.
 640  */
 641 #ifndef wxUSE_IDLEMENUUPDATES
 642 #    if (defined(__WXMSW__) || defined(__WXGTK__)) && !defined(__WXUNIVERSAL__)
 643 #        define wxUSE_IDLEMENUUPDATES 0
 644 #    else
 645 #        define wxUSE_IDLEMENUUPDATES 1
 646 #    endif
 647 #endif
 648
 649 /*
 650  * Define symbols that are not yet in
 651  * configure or possibly some setup.h files.
 652  * They will need to be added.
 653  */
 654
 655 #ifndef wxUSE_FILECONFIG
 656 #    if wxUSE_CONFIG
 657 #        define wxUSE_FILECONFIG 1
 658 #    else
 659 #        define wxUSE_FILECONFIG 0
 660 #    endif
 661 #endif
 662
 663 #ifndef wxUSE_HOTKEY
 664 #    define wxUSE_HOTKEY 0
 665 #endif
 666
 667 #if !defined(wxUSE_WXDIB) && defined(__WXMSW__)
 668 #    define wxUSE_WXDIB 1
 669 #endif
 670
 671 /*
 672     We need AvailabilityMacros.h for ifdefing out things that don't exist on
 673     OSX 10.2 and lower
 674     FIXME:  We need a better way to detect for 10.3 then including a system header
 675 */
 676 #ifdef __DARWIN__
 677     #include <AvailabilityMacros.h>
 678 #endif
 679
 680 #endif /* _WX_PLATFORM_H_ */