Incompatible Implicit Declaration Of Built-in Function Warning Using Ndk With Lame

I'm trying to follow the tutorial located at the following location http://developer.samsung.com/android/technical-docs/Porting-and-using-LAME-MP3-on-Android-with-JNI The gist of t

Solution 1:

After a lot of searching it looks like the answer I was looking for was found here

Lame MP3 Encoder compile for Android

The key for me was to ensure that the following line was added to my Android.mk file

LOCAL_CFLAGS = -DSTDC_HEADERS

as mentioned by James Zhang.

I'm enclosing my complete makefile below this post so what I'm saying is perfectly clear.

Contents of Updated Android.mk File

LOCAL_PATH := $(call my-dir)

    include $(CLEAR_VARS)

    LOCAL_MODULE        := libmp3lame
    LOCAL_SRC_FILES     := \
    ./libmp3lame/bitstream.c \
    ./libmp3lame/encoder.c \
    ./libmp3lame/fft.c \
    ./libmp3lame/gain_analysis.c \
    ./libmp3lame/id3tag.c \
    ./libmp3lame/lame.c \
    ./libmp3lame/mpglib_interface.c \
    ./libmp3lame/newmdct.c \
    ./libmp3lame/presets.c \
    ./libmp3lame/psymodel.c \
    ./libmp3lame/quantize.c \
    ./libmp3lame/quantize_pvt.c \
    ./libmp3lame/reservoir.c \
    ./libmp3lame/set_get.c \
    ./libmp3lame/tables.c \
    ./libmp3lame/takehiro.c \
    ./libmp3lame/util.c \
    ./libmp3lame/vbrquantize.c \
    ./libmp3lame/VbrTag.c \
    ./libmp3lame/version.c 

    LOCAL_LDLIBS := -llog
    LOCAL_CFLAGS = -DSTDC_HEADERS

    include $(BUILD_SHARED_LIBRARY)