내 원시 안드로이드 프로젝트에서 libpng을로드하는 데 문제가 있습니다. 컴파일러는 libpng 함수를 인식하지 못하지만 형식 (예 : png_byte)은 인식합니다. 그것은 타입과 함께 정상적으로 컴파일되지만 함수를 추가하면 에러가 발생합니다.libpng를 Android 기본 프로젝트에 연결
여기에 출력 (윈도우 7 cmd를) 컴파일의 :의 libpng에
D:\Dropbox\Workspace\Eclipse\GhostEngine\jni>C:\android-ndk-r8\ndk-build
"Compile++ thumb : ghost <= ImagePng.cpp
"Compile++ thumb : ghost <= MainAndroid.cpp
"Compile++ thumb : ghost <= PlatformAndroid.cpp
make: Circular D:/Dropbox/Workspace/Eclipse/GhostEngine//obj/local/armeabi/libst
lport_static.a <- D:/Dropbox/Workspace/Eclipse/GhostEngine//obj/local/armeabi/li
bstlport_static.a dependency dropped.
SharedLibrary : libghost.so
D:/Dropbox/Workspace/Eclipse/GhostEngine//obj/local/armeabi/objs/ghost/ImagePng.
o: In function `loadPngFile':
D:/Dropbox/Workspace/Eclipse/GhostEngine//jni/ghost/ImagePng.cpp:48: undefined r
eference to `png_sig_cmp'
D:/Dropbox/Workspace/Eclipse/GhostEngine//jni/ghost/ImagePng.cpp:55: undefined r
eference to `png_create_read_struct'
D:/Dropbox/Workspace/Eclipse/GhostEngine//jni/ghost/ImagePng.cpp:61: undefined r
eference to `png_create_info_struct'
D:/Dropbox/Workspace/Eclipse/GhostEngine//jni/ghost/ImagePng.cpp:68: undefined r
eference to `png_create_info_struct'
D:/Dropbox/Workspace/Eclipse/GhostEngine//jni/ghost/ImagePng.cpp:75: undefined r
eference to `png_set_longjmp_fn'
D:/Dropbox/Workspace/Eclipse/GhostEngine//jni/ghost/ImagePng.cpp:77: undefined r
eference to `png_destroy_read_struct'
D:/Dropbox/Workspace/Eclipse/GhostEngine//jni/ghost/ImagePng.cpp:63: undefined r
eference to `png_destroy_read_struct'
D:/Dropbox/Workspace/Eclipse/GhostEngine//jni/ghost/ImagePng.cpp:70: undefined r
eference to `png_destroy_read_struct'
collect2: ld returned 1 exit status
make: *** [D:/Dropbox/Workspace/Eclipse/GhostEngine//obj/local/armeabi/libghost.
so] Error 1
내 android.mk은 다음과 같습니다
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_CFLAGS :=
LOCAL_MODULE := libpng
LOCAL_SRC_FILES :=\
png.c \
pngerror.c \
pngget.c \
pngmem.c \
pngpread.c \
pngread.c \
pngrio.c \
pngrtran.c \
pngrutil.c \
pngset.c \
pngtrans.c \
pngwio.c \
pngwrite.c \
pngwtran.c \
pngwutil.c
LOCAL_LDLIBS := -lz
include $(BUILD_STATIC_LIBRARY)
Application.mk :
APP_PLATFORM := android-10
STLPORT_FORCE_REBUILD := true
APP_STL := stlport_static
APP_MODULES := libpng ghost
#APP_CPPFLAGS += -fexceptions
안드로이드. 내 프로젝트 폴더의 mk :
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE := ghost
FILE_LIST := $(wildcard $(LOCAL_PATH)/*.cpp)
LOCAL_SRC_FILES := $(FILE_LIST:$(LOCAL_PATH)/%=%)
LOCAL_LDLIBS := -llog -landroid -lEGL -lGLESv2
# Support for additional libraries
#LOCAL_CFLAGS := -DANDROID_NDK -Wno-psabi
LOCAL_STATIC_LIBRARIES := android_native_app_glue
LOCAL_C_INCLUDES := $(LOCAL_PATH)/../libpng/
LOCAL_LDLIBS += -L$(SYSROOT)/usr/lib -ldl
LOCAL_LDLIBS += -L$(SYSROOT)/usr/lib -lz
include $(BUILD_SHARED_LIBRARY)
$(call import-module,android/native_app_glue)
이 문제와 관련하여 도움을 주셔서 감사합니다. 고마워, 마틴.