Need help editing code

Hi, I was looking the android code to help you and include new controllers support, but compiling the app following the guide, the shell is returning me errors like:

[armeabi-v7a armeabi x86 mips] Cygwin : Generating dependency file conve rter script [armeabi-v7a] Compile arm : retroarch-activity <= utils_neon.S [armeabi-v7a] Compile arm : retroarch-activity <= sinc_neon.S [armeabi-v7a] Compile arm : retroarch-activity <= griffin.c In file included from jni/…/…/…/griffin/griffin.c:298:0: jni/…/…/…/griffin/…/android/native/jni/input_autodetect.c: In function ‘inpu t_autodetect_setup’: jni/…/…/…/griffin/…/android/native/jni/input_autodetect.c:111:14: error: ‘DE VICE_IPEGA_PG9017S’ undeclared (first use in this function) jni/…/…/…/griffin/…/android/native/jni/input_autodetect.c:111:14: note: each undeclared identifier is reported only once for each function it appears in In file included from jni/…/…/…/griffin/griffin.c:299:0: jni/…/…/…/griffin/…/android/native/jni/input_android.c: In function ‘android _input_set_keybinds’: jni/…/…/…/griffin/…/android/native/jni/input_android.c:397:15: error: ‘DEVIC E_IPEGA_PG9017S’ undeclared (first use in this function) jni/…/…/…/griffin/…/android/native/jni/input_android.c:402:23: error: ‘andro id’ undeclared (first use in this function) /cygdrive/d/android-ndk-r9c/build/core/build-binary.mk:386: set di istruzioni pe r l’obiettivo "obj/local/armeabi-v7a/objs/retroarch-activity////griffin/gr iffin.o" non riuscito make: *** [obj/local/armeabi-v7a/objs/retroarch-activity////griffin/griffi n.o] Errore 1

Can someone help me with that?