Add signed integer overflow checking to libpng.
This change moves libpng over to Clang in order to take advantage
of its stronger -ftrapv option, causing the code to abort rather
than allowing a signed integer overflow.
Change-Id: Ia9573f41f3d14ac3123be1e2c7b17cc8338c69b8
diff --git a/Android.mk b/Android.mk
index 4e92908..c89472e 100644
--- a/Android.mk
+++ b/Android.mk
@@ -59,9 +59,9 @@
# =====================================================
include $(CLEAR_VARS)
-
+LOCAL_CLANG := true
LOCAL_SRC_FILES := $(common_SRC_FILES)
-LOCAL_CFLAGS += $(common_CFLAGS)
+LOCAL_CFLAGS += $(common_CFLAGS) -ftrapv
LOCAL_C_INCLUDES += $(common_C_INCLUDES) \
external/zlib
LOCAL_SHARED_LIBRARIES := \
@@ -73,5 +73,3 @@
LOCAL_COPY_HEADERS := $(common_COPY_HEADERS)
include $(BUILD_STATIC_LIBRARY)
-
-