diff --git a/android/native/jni/Android.mk b/android/native/jni/Android.mk
index 03c119c1aa..75e419d21d 100644
--- a/android/native/jni/Android.mk
+++ b/android/native/jni/Android.mk
@@ -58,7 +58,7 @@ ifeq ($(DEBUG_INPUT), 1)
 LOCAL_CFLAGS += -DRARCH_INPUT_DEBUG
 endif
 
-LOCAL_CFLAGS += -O3 -fno-stack-protector -funroll-loops -DNDEBUG -DHAVE_GRIFFIN -DANDROID -DHAVE_DYNAMIC -DHAVE_OPENGL -DHAVE_OVERLAY -DHAVE_OPENGLES -DHAVE_VID_CONTEXT -DHAVE_OPENGLES2 -DGLSL_DEBUG -DHAVE_GLSL -DHAVE_ZLIB -DWANT_RZLIB -DINLINE=inline -DLSB_FIRST -DHAVE_THREAD -D__LIBRETRO__ -DRARCH_PERFORMANCE_MODE -DRARCH_GPU_PERFORMANCE_MODE -DPACKAGE_VERSION=\"$(RARCH_VERSION)\" -std=gnu99
+LOCAL_CFLAGS += -Wall -Wno-unused-function -O3 -fno-stack-protector -funroll-loops -DNDEBUG -DHAVE_GRIFFIN -DANDROID -DHAVE_DYNAMIC -DHAVE_OPENGL -DHAVE_OVERLAY -DHAVE_OPENGLES -DHAVE_VID_CONTEXT -DHAVE_OPENGLES2 -DGLSL_DEBUG -DHAVE_GLSL -DHAVE_ZLIB -DWANT_RZLIB -DINLINE=inline -DLSB_FIRST -DHAVE_THREAD -D__LIBRETRO__ -DRARCH_PERFORMANCE_MODE -DRARCH_GPU_PERFORMANCE_MODE -DPACKAGE_VERSION=\"$(RARCH_VERSION)\" -std=gnu99
 
 LOCAL_LDLIBS	:= -L$(SYSROOT)/usr/lib -landroid -lEGL -lGLESv2 $(LOGGER_LDLIBS) -ldl
 #LOCAL_C_INCLUDES += $(LIBXML_PATH)
diff --git a/android/native/jni/cpufeatures.c b/android/native/jni/cpufeatures.c
index b8fccdc6b6..7af2dc6410 100644
--- a/android/native/jni/cpufeatures.c
+++ b/android/native/jni/cpufeatures.c
@@ -129,7 +129,7 @@ extract_cpuinfo_field(char* buffer, int buflen, const char* field)
     int  fieldlen = strlen(field);
     char* bufend = buffer + buflen;
     char* result = NULL;
-    int len, ignore;
+    int len;
     const char *p, *q;
 
     /* Look for first field occurence, and ensures it starts the line.
@@ -400,9 +400,6 @@ android_cpuInit(void)
 
 #ifdef __ARM_ARCH__
     {
-        char*  features = NULL;
-        char*  architecture = NULL;
-
         /* Extract architecture from the "CPU Architecture" field.
          * The list is well-known, unlike the the output of
          * the 'Processor' field which can vary greatly.
diff --git a/android/native/jni/input_android.c b/android/native/jni/input_android.c
index c142009dcc..3cba28b656 100644
--- a/android/native/jni/input_android.c
+++ b/android/native/jni/input_android.c
@@ -338,7 +338,6 @@ static void android_input_poll(void *data)
       if(type_event == AINPUT_EVENT_TYPE_MOTION)
       {
          action = AMotionEvent_getAction(event);
-         int8_t motion_action = action & AMOTION_EVENT_ACTION_MASK;
          size_t motion_pointer = action >> AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT;
 
          float x = AMotionEvent_getX(event, motion_pointer);
diff --git a/android/phoenix/jni/Android.mk b/android/phoenix/jni/Android.mk
index 3eabbc2505..405753bef9 100644
--- a/android/phoenix/jni/Android.mk
+++ b/android/phoenix/jni/Android.mk
@@ -54,7 +54,7 @@ ifeq ($(PERF_TEST), 1)
 LOCAL_CFLAGS += -DPERF_TEST
 endif
 
-LOCAL_CFLAGS += -O3 -fno-stack-protector -funroll-loops -DNDEBUG -DHAVE_GRIFFIN -DANDROID -DHAVE_DYNAMIC -DHAVE_OPENGL -DHAVE_OPENGLES -DHAVE_VID_CONTEXT -DHAVE_OPENGLES2 -DGLSL_DEBUG -DHAVE_GLSL -DHAVE_ZLIB -DWANT_RZLIB -DINLINE=inline -DLSB_FIRST -DHAVE_THREAD -D__LIBRETRO__ -DRARCH_PERFORMANCE_MODE -DRARCH_GPU_PERFORMANCE_MODE -DHAVE_OVERLAY -DPACKAGE_VERSION=\"$(RARCH_VERSION)\" -std=gnu99
+LOCAL_CFLAGS += -Wall -Wno-unused-function -O3 -fno-stack-protector -funroll-loops -DNDEBUG -DHAVE_GRIFFIN -DANDROID -DHAVE_DYNAMIC -DHAVE_OPENGL -DHAVE_OPENGLES -DHAVE_VID_CONTEXT -DHAVE_OPENGLES2 -DGLSL_DEBUG -DHAVE_GLSL -DHAVE_ZLIB -DWANT_RZLIB -DINLINE=inline -DLSB_FIRST -DHAVE_THREAD -D__LIBRETRO__ -DRARCH_PERFORMANCE_MODE -DRARCH_GPU_PERFORMANCE_MODE -DHAVE_OVERLAY -DPACKAGE_VERSION=\"$(RARCH_VERSION)\" -std=gnu99
 
 LOCAL_LDLIBS	:= -L$(SYSROOT)/usr/lib -landroid -lEGL -lGLESv2 -llog -ldl
 LOCAL_C_INCLUDES += $(LIBXML_PATH)
diff --git a/gfx/context/androidegl_ctx.c b/gfx/context/androidegl_ctx.c
index 4759de4396..d860110f06 100644
--- a/gfx/context/androidegl_ctx.c
+++ b/gfx/context/androidegl_ctx.c
@@ -124,7 +124,6 @@ static bool gfx_ctx_init(void)
    EGLint num_config;
    EGLint egl_version_major, egl_version_minor;
    EGLint format;
-   GLfloat ratio;
 
    EGLint context_attributes[] = {
       EGL_CONTEXT_CLIENT_VERSION, 2,
@@ -321,9 +320,9 @@ static void gfx_ctx_set_filtering(unsigned index, bool set_smooth)
 
 static void gfx_ctx_set_fbo(unsigned mode)
 {
+#ifdef HAVE_FBO
    gl_t *gl = driver.video_data;
 
-#ifdef HAVE_FBO
    switch(mode)
    {
       case FBO_DEINIT:
diff --git a/gfx/gl.c b/gfx/gl.c
index 49b05d5d6c..c78d6280a7 100644
--- a/gfx/gl.c
+++ b/gfx/gl.c
@@ -1279,8 +1279,6 @@ static void gl_free(void *data)
 
 static void gl_set_nonblock_state(void *data, bool state)
 {
-   gl_t *gl = (gl_t*)data;
-
    RARCH_LOG("GL VSync => %s\n", state ? "off" : "on");
    context_swap_interval_func(state ? 0 : 1);
 }
@@ -1598,7 +1596,6 @@ static bool gl_alive(void *data)
 
 static bool gl_focus(void *data)
 {
-   gl_t *gl = (gl_t*)data;
    return context_has_focus_func();
 }