Only in atari800/atari800/src: config.h.in
diff -ru orig/atari800/atari800/src/config.sub atari800/atari800/src/config.sub
--- orig/atari800/atari800/src/config.sub	2006-04-08 08:07:36.000000000 -0400
+++ atari800/atari800/src/config.sub	2011-02-03 10:28:16.000000000 -0500
@@ -1206,7 +1206,7 @@
 	      | -ekkobsd* | -kfreebsd* | -freebsd* | -riscix* | -lynxos* \
 	      | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \
 	      | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \
-	      | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \
+	      | -udi* | -eabi* | -androideabi* | -lites* | -ieee* | -go32* | -aux* \
 	      | -chorusos* | -chorusrdb* \
 	      | -cygwin* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
 	      | -mingw32* | -linux-gnu* | -linux-newlib* | -linux-uclibc* \
diff -ru orig/atari800/atari800/src/configure.ac atari800/atari800/src/configure.ac
--- orig/atari800/atari800/src/configure.ac	2010-12-07 10:16:26.000000000 -0500
+++ atari800/atari800/src/configure.ac	2011-02-03 10:45:32.000000000 -0500
@@ -97,7 +97,7 @@
         AC_DEFINE(DOS_DRIVES,1,[Define to enable DOS style drives support.])
         AC_DEFINE(SYSTEM_WIDE_CFG_FILE,"c:\\atari800.cfg",[Alternate system-wide config file for non-Unix OS.])
         ;;
-    linux | linux-gnu)
+    linux | linux-gnu | androideabi)
         a8_host="linux"
         ;;
     mint)
@@ -301,7 +301,7 @@
 	WANT_NTSC_FILTER=yes
         LIBS="$LIBS `sdl-config --libs`"
         OBJS="videomode.o sdl/main.o sdl/video.o sdl/video_sw.o sdl/input.o sdl/palette.o"
-        CFLAGS="$CFLAGS -ansi -pedantic -Waggregate-return -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Winline"
+        CFLAGS="$CFLAGS -O3 -pedantic -Waggregate-return -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Winline"
         if [[ "$a8_host" != "beos" ]]; then
 dnl BeOS has a real issue with redundant-decls
             CFLAGS="$CFLAGS -Wredundant-decls"
Only in atari800/atari800/src: configure.ac~
diff -ru orig/atari800/atari800/src/sdl/input.c atari800/atari800/src/sdl/input.c
--- orig/atari800/atari800/src/sdl/input.c	2010-12-07 10:16:26.000000000 -0500
+++ atari800/atari800/src/sdl/input.c	2011-02-03 10:46:35.000000000 -0500
@@ -22,9 +22,11 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */
 
+#ifndef ANDROID
 #ifdef __linux__
 #define LPTJOY	1
 #endif
+#endif
 
 #ifdef LPTJOY
 #include <fcntl.h>
@@ -1214,6 +1216,9 @@
 	int stick0, stick1;
 	stick0 = stick1 = INPUT_STICK_CENTRE;
 
+	if( !kbhits )
+		return;
+
 	if (PLATFORM_kbd_joy_0_enabled) {
 		if (kbhits[KBD_STICK_0_LEFT])
 			stick0 = INPUT_STICK_LEFT;
@@ -1281,6 +1286,9 @@
 	int trig0, trig1, i;
 	trig0 = trig1 = 1;
 
+	if( !kbhits )
+		return;
+
 	if (PLATFORM_kbd_joy_0_enabled) {
 		trig0 = kbhits[KBD_TRIG_0] ? 0 : 1;
 	}
Only in atari800/atari800/src/sdl: input.c~