Frameworks/base: Turn on -Wall -Werror in cmds

Fix small warnings, turn on -Wall -Werror.

Change-Id: Iab1f01a7c7ebd6ba832b75067c5e395f380a1b8b
diff --git a/cmds/app_process/Android.mk b/cmds/app_process/Android.mk
index 397a7d1..dd5e0ea 100644
--- a/cmds/app_process/Android.mk
+++ b/cmds/app_process/Android.mk
@@ -3,17 +3,17 @@
 include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES:= \
-	app_main.cpp
+    app_main.cpp
 
 LOCAL_LDFLAGS := -Wl,--version-script,art/sigchainlib/version-script.txt -Wl,--export-dynamic
 
 LOCAL_SHARED_LIBRARIES := \
-	libdl \
-	libcutils \
-	libutils \
-	liblog \
-	libbinder \
-	libandroid_runtime
+    libdl \
+    libcutils \
+    libutils \
+    liblog \
+    libbinder \
+    libandroid_runtime
 
 LOCAL_WHOLE_STATIC_LIBRARIES := libsigchain
 
@@ -21,6 +21,9 @@
 LOCAL_MULTILIB := both
 LOCAL_MODULE_STEM_32 := app_process32
 LOCAL_MODULE_STEM_64 := app_process64
+
+LOCAL_CFLAGS += -Wall -Werror -Wunused -Wunreachable-code
+
 include $(BUILD_EXECUTABLE)
 
 # Create a symlink from app_process to app_process32 or 64
@@ -34,14 +37,14 @@
 include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES:= \
-	app_main.cpp
+    app_main.cpp
 
 LOCAL_SHARED_LIBRARIES := \
-	libcutils \
-	libutils \
-	liblog \
-	libbinder \
-	libandroid_runtime
+    libcutils \
+    libutils \
+    liblog \
+    libbinder \
+    libandroid_runtime
 
 LOCAL_WHOLE_STATIC_LIBRARIES := libsigchain
 
@@ -54,6 +57,8 @@
 LOCAL_MODULE_STEM := app_process
 LOCAL_ADDRESS_SANITIZER := true
 
+LOCAL_CFLAGS += -Wall -Werror -Wunused -Wunreachable-code
+
 include $(BUILD_EXECUTABLE)
 
 endif # ifeq($(TARGET_ARCH),arm)