Index: src/video/sdl_v.cpp
===================================================================
--- src/video/sdl_v.cpp	(revision 21311)
+++ src/video/sdl_v.cpp	(working copy)
@@ -354,6 +354,8 @@
 	if (sym->scancode == 49) key = WKC_BACKSPACE;
 #elif defined(__sgi__)
 	if (sym->scancode == 22) key = WKC_BACKQUOTE;
+#elif defined(ANDROID)
+	if (sym->scancode == SDLK_BACKQUOTE) key = WKC_BACKQUOTE;
 #else
 	if (sym->scancode == 49) key = WKC_BACKQUOTE;
 #endif
@@ -485,6 +487,9 @@
 	SDL_CALL SDL_EnableUNICODE(1);
 
 	_draw_threaded = GetDriverParam(parm, "no_threads") == NULL && GetDriverParam(parm, "no_thread") == NULL;
+#ifdef ANDROID
+	_draw_threaded = false;
+#endif
 
 	return NULL;
 }
Index: src/sound/sdl_s.cpp
===================================================================
--- src/sound/sdl_s.cpp	(revision 21311)
+++ src/sound/sdl_s.cpp	(working copy)
@@ -20,9 +20,16 @@
 
 static FSoundDriver_SDL iFSoundDriver_SDL;
 
+#ifdef ANDROID
+extern void Android_MidiMixMusic(Sint16 *stream, int len);
+#endif
+
 static void CDECL fill_sound_buffer(void *userdata, Uint8 *stream, int len)
 {
 	MxMixSamples(stream, len / 4);
+#if defined(ANDROID) && defined(LIBTIMIDITY)
+	Android_MidiMixMusic((Sint16 *)stream, len / 2);
+#endif
 }
 
 const char *SoundDriver_SDL::Start(const char * const *parm)
Index: src/music/libtimidity.cpp
===================================================================
--- src/music/libtimidity.cpp	(revision 21311)
+++ src/music/libtimidity.cpp	(working copy)
@@ -23,10 +23,13 @@
 #include <sys/stat.h>
 #include <errno.h>
 #include <timidity.h>
+#include <SDL.h>
+
 #if defined(PSP)
 #include <pspaudiolib.h>
 #endif /* PSP */
 
+
 enum MidiState {
 	MIDI_STOPPED = 0,
 	MIDI_PLAYING = 1,
@@ -51,6 +54,24 @@
 	}
 }
 #endif /* PSP */
+#ifdef ANDROID
+#define MIN(X ,Y)  ((X) < (Y) ? (X) : (Y))
+void Android_MidiMixMusic(Sint16 *stream, int len)
+{
+	if (_midi.status == MIDI_PLAYING) {
+		Sint16 buf[16384];
+		while( len > 0 )
+		{
+			int minlen = MIN(sizeof(buf), len);
+			mid_song_read_wave(_midi.song, stream, MIN(sizeof(buf), len*2));
+			for( Uint16 i = 0; i < minlen; i++ )
+				stream[i] += buf[i];
+			stream += minlen;
+			len -= minlen;
+		}
+	}
+}
+#endif
 
 static FMusicDriver_LibTimidity iFMusicDriver_LibTimidity;
 
Index: src/os/unix/unix.cpp
===================================================================
--- src/os/unix/unix.cpp	(revision 21311)
+++ src/os/unix/unix.cpp	(working copy)
@@ -24,7 +24,7 @@
 
 #ifdef __APPLE__
 	#include <sys/mount.h>
-#elif (defined(_POSIX_VERSION) && _POSIX_VERSION >= 200112L) || defined(__GLIBC__)
+#elif ((defined(_POSIX_VERSION) && _POSIX_VERSION >= 200112L) || defined(__GLIBC__)) && !defined(ANDROID)
 	#define HAS_STATVFS
 #endif
 
@@ -239,6 +239,11 @@
 void cocoaReleaseAutoreleasePool();
 #endif
 
+#ifdef ANDROID
+#define main SDL_main
+extern "C" int CDECL main(int, char *[]);
+#endif
+
 int CDECL main(int argc, char *argv[])
 {
 	int ret;
Index: src/os/unix/crashlog_unix.cpp
===================================================================
--- src/os/unix/crashlog_unix.cpp	(revision 21311)
+++ src/os/unix/crashlog_unix.cpp	(working copy)
@@ -141,7 +141,11 @@
 };
 
 /** The signals we want our crash handler to handle. */
+#ifdef ANDROID
+static const int _signals_to_handle[] = { }; // Default Android signal handler will give us stack trace
+#else
 static const int _signals_to_handle[] = { SIGSEGV, SIGABRT, SIGFPE, SIGBUS, SIGILL };
+#endif
 
 /**
  * Entry point for the crash handler.
Index: src/window.cpp
===================================================================
--- src/window.cpp	(revision 21311)
+++ src/window.cpp	(working copy)
@@ -2053,6 +2053,10 @@
 
 static void MouseLoop(MouseClick click, int mousewheel)
 {
+#ifdef ANDROID
+	_settings_client.gui.left_mouse_btn_scrolling = true;
+#endif
+
 	HandlePlacePresize();
 	UpdateTileSelection();
 
Index: src/network/core/os_abstraction.h
===================================================================
--- src/network/core/os_abstraction.h	(revision 21311)
+++ src/network/core/os_abstraction.h	(working copy)
@@ -159,7 +159,7 @@
 #		include <net/if.h>
 /* According to glibc/NEWS, <ifaddrs.h> appeared in glibc-2.3. */
 #		if !defined(__sgi__) && !defined(SUNOS) && !defined(__MORPHOS__) && !defined(__BEOS__) && !defined(__HAIKU__) && !defined(__INNOTEK_LIBC__) \
-		   && !(defined(__GLIBC__) && (__GLIBC__ <= 2) && (__GLIBC_MINOR__ <= 2)) && !defined(__dietlibc__) && !defined(HPUX)
+		   && !(defined(__GLIBC__) && (__GLIBC__ <= 2) && (__GLIBC_MINOR__ <= 2)) && !defined(__dietlibc__) && !defined(HPUX) && !defined(ANDROID)
 /* If for any reason ifaddrs.h does not exist on your system, comment out
  *   the following two lines and an alternative way will be used to fetch
  *   the list of IPs from the system. */
Index: src/debug.cpp
===================================================================
--- src/debug.cpp	(revision 21311)
+++ src/debug.cpp	(working copy)
@@ -16,6 +16,9 @@
 #include "string_func.h"
 #include "fileio_func.h"
 #include "settings_type.h"
+#ifdef ANDROID
+#include <android/log.h>
+#endif
 
 #include <time.h>
 
@@ -70,6 +73,9 @@
 
 static void debug_print(const char *dbg, const char *buf)
 {
+#ifdef ANDROID
+	__android_log_print(ANDROID_LOG_INFO, "OpenTTD", "[%s] %s", dbg, buf);
+#endif
 #if defined(ENABLE_NETWORK)
 	if (_debug_socket != INVALID_SOCKET) {
 		char buf2[1024 + 32];
Index: src/main_gui.cpp
===================================================================
--- src/main_gui.cpp	(revision 21311)
+++ src/main_gui.cpp	(working copy)
@@ -275,7 +275,11 @@
 			}
 
 			case WKC_ESC: ResetObjectToPlace(); break;
+#ifdef ANDROID
+			case WKC_DELETE: DeleteAllNonVitalWindows(); break;
+#else
 			case WKC_DELETE: DeleteNonVitalWindows(); break;
+#endif
 			case WKC_DELETE | WKC_SHIFT: DeleteAllNonVitalWindows(); break;
 			case 'R' | WKC_CTRL: MarkWholeScreenDirty(); break;