Various makefile and installation things.

main() is now always in the program. Also added a
    macro that doesn't set main at all so that users
    can have their own.
  The isosurf sample doesn't work anymore.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@6459 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/app.h

@@ -370,7 +370,7 @@ public:
 // be in your main program (e.g. hello.cpp). Now IMPLEMENT_APP should add this
 // code if required.
 
-#if !wxUSE_GUI || defined(__AIX__) || defined(__HPUX__) || defined( __VMS__ ) || defined(__WXPM__)
+#if !wxUSE_GUI || defined(__WXMOTIF__) || defined(__WXGTK__) || defined(__WXPM__)
     #define IMPLEMENT_WXWIN_MAIN \
         extern int wxEntry( int argc, char *argv[] ); \
         int main(int argc, char *argv[]) { return wxEntry(argc, argv); }
@@ -393,14 +393,21 @@ public:
     #define IMPLEMENT_WXWIN_MAIN
 #endif
 
-// use this macro exactly once, the argument is the name of the wxApp-derived
-// class which is the class of your application
-#define IMPLEMENT_APP(appname)                          \
-    wxApp *wxCreateApp() { return new appname; }      \
+// Use this macro exactly once, the argument is the name of the wxApp-derived
+// class which is the class of your application.
+#define IMPLEMENT_APP(appname)                           \
+    wxApp *wxCreateApp() { return new appname; }         \
     wxAppInitializer wxTheAppInitializer((wxAppInitializerFunction) wxCreateApp); \
     appname& wxGetApp() { return *(appname *)wxTheApp; } \
     IMPLEMENT_WXWIN_MAIN
 
+// Use this macro if you want to define your own main() or WinMain() function
+// and call wxEntry() from there.
+#define IMPLEMENT_APP_NO_MAIN(appname)                   \
+    wxApp *wxCreateApp() { return new appname; }         \
+    wxAppInitializer wxTheAppInitializer((wxAppInitializerFunction) wxCreateApp); \
+    appname& wxGetApp() { return *(appname *)wxTheApp; }
+
 #define DECLARE_APP(appname) extern appname& wxGetApp();
 
 #endif