问致命错误:ifz.h: muPDF库中没有这样的文件或目录

EN

15:25:36 **** Build of configuration Debug for project ChoosePDFActivity ****
"E:\\android-ndk\\android-ndk-r9d\\ndk-build.cmd" all 
Android NDK: WARNING:E:/Workspace_SIL/ChoosePDFActivity//jni/Android.mk:mupdfcore: LOCAL_LDLIBS is always ignored for static libraries    
Android NDK: WARNING:E:/Workspace_SIL/ChoosePDFActivity//jni/Android.mk:mupdfcore: LOCAL_LDLIBS is always ignored for static libraries    
[armeabi] Compile thumb  : mupdf <= mupdf.c
E:/Workspace_SIL/ChoosePDFActivity//jni/mupdf.c:10:18: fatal error: fitz.h: No such file or directory
compilation terminated.
make.exe: *** [E:/Workspace_SIL/ChoosePDFActivity//obj/local/armeabi/objs-debug/mupdf/mupdf.o] Error 1

15:25:36 Build Finished (took 489ms)

LOCAL_PATH := $(call my-dir)
TOP_LOCAL_PATH := $(LOCAL_PATH)

MUPDF_ROOT := ..

include $(TOP_LOCAL_PATH)/Core.mk
include $(TOP_LOCAL_PATH)/ThirdParty.mk

include $(CLEAR_VARS)

LOCAL_C_INCLUDES := \
    $(MUPDF_ROOT)/draw \
    $(MUPDF_ROOT)/fitz \
    $(MUPDF_ROOT)/pdf
LOCAL_CFLAGS :=
LOCAL_MODULE    := mupdf
LOCAL_SRC_FILES := mupdf.c
LOCAL_STATIC_LIBRARIES := mupdfcore mupdfthirdparty

LOCAL_LDLIBS    := -lm -llog -ljnigraphics

include $(BUILD_SHARED_LIBRARY)