Add minimal support for building non-GUI parts of wxWidgets for Android.

Recognize __ANDROID__ in wx/platform.h and include the appropriate headers
from wx/android.

Also fix a couple of compilation errors (in filename.cpp) and warnings (in
event.h) which only appear when building for Android.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@70703 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/android/config_android.h

@@ -0,0 +1,56 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        wx/android/config_android.h
+// Purpose:     configurations for Android builds
+// Author:      Zsolt Bakcsi
+// Modified by:
+// Created:     2011-12-02
+// RCS-ID:
+// Copyright:   (c) wxWidgets team
+// Licence:     wxWindows licence
+///////////////////////////////////////////////////////////////////////////////
+
+// Please note that most of these settings are based on config_xcode.h and
+// 'fine-tuned' on a trial-and-error basis. This means, no in-depth analysis
+// of Android docs / source was done.
+
+#define wxUSE_UNIX 1
+#define __UNIX__ 1
+
+#define HAVE_NANOSLEEP
+#define HAVE_FCNTL 1
+#define HAVE_GCC_ATOMIC_BUILTINS
+#define HAVE_GETHOSTBYNAME 1
+#define HAVE_GETSERVBYNAME 1
+#define HAVE_GETTIMEOFDAY 1
+#define HAVE_GMTIME_R 1
+#define HAVE_INET_ADDR 1
+#define HAVE_INET_ATON 1
+#define HAVE_LOCALTIME_R 1
+#define HAVE_PTHREAD_MUTEXATTR_T 1
+#define HAVE_PTHREAD_MUTEXATTR_SETTYPE_DECL 1
+#define HAVE_PTHREAD_ATTR_SETSTACKSIZE 1
+#define HAVE_THREAD_PRIORITY_FUNCTIONS 1
+#define HAVE_SSIZE_T 1
+#define HAVE_STRCASECMP_IN_STRING_H 1
+#define HAVE_WPRINTF 1
+
+#define SIZEOF_INT 4
+#define SIZEOF_LONG 4
+#define SIZEOF_LONG_LONG 8
+#define SIZEOF_SIZE_T 4
+#define SIZEOF_VOID_P 4
+#define SIZEOF_WCHAR_T 4
+
+#define wxHAVE_PTHREAD_CLEANUP 1
+#define wxNO_WOSTREAM
+#define wxSIZE_T_IS_UINT 1
+#define wxWCHAR_T_IS_REAL_TYPE 1
+
+#define wxTYPE_SA_HANDLER int
+
+#define wxUSE_SELECT_DISPATCHER 1
+
+#ifdef HAVE_PTHREAD_CANCEL
+// Android doesn't support pthread_cancel().
+#undef HAVE_PTHREAD_CANCEL
+#endif

include/wx/chkconf.h

@@ -1219,6 +1219,8 @@
 #  include "wx/motif/chkconf.h"
 #elif defined(__WXX11__)
 #  include "wx/x11/chkconf.h"
+#elif defined(__WXANDROID__)
+#  include "wx/android/chkconf.h"
 #endif
 
 /*

include/wx/event.h

@@ -225,10 +225,13 @@ public:
             const wxObjectEventFunctor &other =
                 static_cast< const wxObjectEventFunctor & >( functor );
 
-            // FIXME-VC6: amazing but true: replacing "method == NULL" here
-            // with "!method" makes VC6 crash with an ICE in DLL build (only!)
+            // FIXME-VC6: amazing but true: replacing "m_method == 0" here
+            // with "!m_method" makes VC6 crash with an ICE in DLL build (only!)
+            // Also notice that using "NULL" instead of "0" results in warnings
+            // about "using NULL in arithmetics" from arm-linux-androideabi-g++
+            // 4.4.3 used for wxAndroid build.
 
-            return ( m_method == other.m_method || other.m_method == NULL ) &&
+            return ( m_method == other.m_method || other.m_method == 0 ) &&
                    ( m_handler == other.m_handler || other.m_handler == NULL );
         }
         else

include/wx/platform.h

@@ -149,6 +149,11 @@
 #   define __WXHANDHELD__
 #endif
 
+#ifdef __ANDROID__
+#   define __WXANDROID__
+#   include "wx/android/config_android.h"
+#endif
+
 /*
    Include wx/setup.h for the Unix platform defines generated by configure and
    the library compilation options

src/common/filename.cpp

@@ -2666,12 +2666,14 @@ bool wxFileName::GetTimes(wxDateTime *dtAccess,
     wxStructStat stBuf;
     if ( wxStat( GetFullPath(), &stBuf) == 0 )
     {
+        // Android defines st_*time fields as unsigned long, but time_t as long,
+        // hence the static_casts.
         if ( dtAccess )
-            dtAccess->Set(stBuf.st_atime);
+            dtAccess->Set(static_cast<time_t>(stBuf.st_atime));
         if ( dtMod )
-            dtMod->Set(stBuf.st_mtime);
+            dtMod->Set(static_cast<time_t>(stBuf.st_mtime));
         if ( dtCreate )
-            dtCreate->Set(stBuf.st_ctime);
+            dtCreate->Set(static_cast<time_t>(stBuf.st_ctime));
 
         return true;
     }