fix warnings in EventsSuppressor ctor from gcc with -O option

[wxWidgets.git] / include / wx / platform.h

diff --git a/include/wx/platform.h b/include/wx/platform.h
index afc1f824153a5e76400047f958f393f73e4fee8e..b11bad042a1d0abd035a2723fe8bb217b9ec9da1 100644 (file)
--- a/include/wx/platform.h
+++ b/include/wx/platform.h
@@ -23,14 +23,6 @@
 #   include <stddef.h>
 #endif
 
-/*
-    This header must be included before anything else under VMS
- */
-#ifdef __VMS
-#   include <vms_jackets.h>
-#   undef ConnectionNumber
-#endif
-
 /*
     WXMAC variants
     __WXMAC_CLASSIC__ means ppc non-carbon builds, __WXMAC_CARBON__ means
@@ -220,7 +212,7 @@
     #endif
 #endif /* ia64 */
 
-#if defined(_M_MPPC) || defined(__PPC__)
+#if defined(_M_MPPC) || defined(__PPC__) || defined(__ppc__)
     #ifndef __POWERPC__
         #define __POWERPC__
     #endif
@@ -265,6 +257,18 @@
 #endif
 
 
+/* test for old versions of Borland C, normally need at least 5.82, Turbo explorer, 
+   available for free at http://www.turboexplorer.com/downloads 
+*/
+#if defined(__BORLANDC__) && (__BORLANDC__ < 0x550)
+#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"
+#endif /* __BORLANDC__ */
+
+#if defined(__BORLANDC__) && (__BORLANDC__ < 0x582) && (__BORLANDC__ > 0x559)
+#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"
+#endif /* __BORLANDC__ */
+
+
 /*
    This macro can be used to test the Open Watcom version.
 */
@@ -302,11 +306,12 @@
 /*
    OS: then test for generic Unix defines, then for particular flavours and
        finally for Unix-like systems
+       Mac OS X matches this case (__MACH__), prior Mac OS do not.
  */
 #elif defined(__UNIX__) || defined(__unix) || defined(__unix__) || \
       defined(____SVR4____) || defined(__LINUX__) || defined(__sgi) || \
       defined(__hpux) || defined(sun) || defined(__SUN__) || defined(_AIX) || \
-      defined(__EMX__) || defined(__VMS) || defined(__BEOS__)
+      defined(__EMX__) || defined(__VMS) || defined(__BEOS__) || defined(__MACH__)
 
 #    define __UNIX_LIKE__
 
@@ -348,6 +353,35 @@
 #            define wxSIZE_T_IS_UINT
 #        endif
 #    endif
+
+    /*  All of these should already be defined by including configure-
+        generated setup.h but we wish to support Xcode compilation without
+        requiring the user to define these himself.
+     */
+#    if defined(__APPLE__) && defined(__MACH__)
+#        ifndef __UNIX__
+#            define __UNIX__ 1
+#        endif
+#        ifndef __BSD__
+#            define __BSD__ 1
+#        endif
+        /*  __DARWIN__ is our own define to mean OS X or pure Darwin */
+#        ifndef __DARWIN__
+#            define __DARWIN__ 1
+#        endif
+        /*  NOTE: TARGET_CARBON is actually a 0/1 and must be 1 for OS X */
+#        ifndef TARGET_CARBON
+#            define TARGET_CARBON 1
+#        endif
+        /* OS X uses unsigned long size_t for both ILP32 and LP64 modes. */
+#        if !defined(wxSIZE_T_IS_UINT) && !defined(wxSIZE_T_IS_ULONG)
+#            define wxSIZE_T_IS_ULONG
+#        endif
+#    endif
+
+/*
+   OS: Classic Mac OS
+ */
 #elif defined(applec) || \
       defined(THINK_C) || \
       (defined(__MWERKS__) && !defined(__INTEL__))
@@ -355,38 +389,10 @@
 #    if !defined(wxSIZE_T_IS_UINT) && !defined(wxSIZE_T_IS_ULONG)
 #        define wxSIZE_T_IS_ULONG
 #    endif
-#elif defined(__WXMAC__) && defined(__APPLE__)
-    /* Mac OS X */
-#    define __UNIX_LIKE__
 
-    /*
-      These defines are needed when compiling using Project Builder
-      with a non generated setup0.h
-    */
-#    ifndef __UNIX__
-#        define __UNIX__ 1
-#    endif
-#    ifndef __BSD__
-#        define __BSD__ 1
-#    endif
-#    ifndef __DARWIN__
-#        define __DARWIN__ 1
-#    endif
-#    ifndef __POWERPC__
-#        define __POWERPC__ 1
-#    endif
-#    ifndef TARGET_CARBON
-#        define TARGET_CARBON 1
-#    endif
-
-#    if !defined(wxSIZE_T_IS_UINT) && !defined(wxSIZE_T_IS_ULONG)
-#        define wxSIZE_T_IS_ULONG
-#    endif
-    /*
-       Some code has been added to workaround defects(?) in the
-       bundled gcc compiler. These corrections are identified by
-       __DARWIN__ for Darwin related corrections (wxMac, wxMotif)
-     */
+/*
+   OS: OS/2
+ */
 #elif defined(__OS2__)
 
     /* wxOS2 vs. non wxOS2 ports on OS2 platform */
@@ -407,6 +413,9 @@
 #    endif
 #    define wxSIZE_T_IS_UINT
 
+/*
+   OS: Palm OS
+ */
 #elif defined(__PALMOS__)
 #    ifdef __WIN32__
 #        error "__WIN32__ should not be defined for PalmOS"
@@ -418,6 +427,9 @@
 #        error "__WXMSW__ should not be defined for PalmOS"
 #    endif
 
+/*
+   OS: Otherwise it must be Windows
+ */
 #else   /* Windows */
 #    ifndef __WINDOWS__
 #        define __WINDOWS__
@@ -545,12 +557,22 @@
 #    endif
 #endif
 
-#if defined (__WXMAC__)
-#    if ( !defined(__MACH__) || ( defined(__BIG_ENDIAN__) && __BIG_ENDIAN__ ) )
-#        define WORDS_BIGENDIAN 1
-#    else
-#        undef WORDS_BIGENDIAN
-#    endif
+/*
+    Handle Darwin gcc universal compilation.  Don't do this in an Apple-
+    specific case since no sane compiler should be defining either
+    __BIG_ENDIAN__ or __LITTLE_ENDIAN__ unless it really is generating
+    code that will be hosted on a machine with the appropriate endianness.
+    If a compiler defines neither, assume the user or configure set
+    WORDS_BIGENDIAN appropriately.
+ */
+#if defined(__BIG_ENDIAN__)
+#    undef WORDS_BIGENDIAN
+#    define WORDS_BIGENDIAN 1
+#elif defined(__LITTLE_ENDIAN__)
+#    undef WORDS_BIGENDIAN
+#elif defined(__WXMAC__) && !defined(WORDS_BIGENDIAN)
+/*  According to Stefan even ancient Mac compilers defined __BIG_ENDIAN__ */
+#    warning "Compiling wxMac with probably wrong endianness"
 #endif
 
 /*