Question

我正在关注教程 http://docs.gstreamer.com/display/GstSDK/Installing+for+Android+development

我想使用ndk-build来构建示例。

当我使用"ndk-build"时，会出现错误消息。以下是输出消息：

GStreamer      : [GEN] => gst-build/gstreamer_android.c

GStreamer      : [COMPILE] => gst-build/gstreamer_android.c

GStreamer      : [LINK] => gst-build/libgstreamer_android.so

/home/quanta/tools/android-ndk-r9d/toolchains/arm-linux-androideabi- 4.6/prebuilt/linux-x86/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld.gold: error: cannot find -lrt

collect2：ld返回1退出状态

make：*** [buildsharedlibrary]错误1

我在ubuntu linux 64bit 12.04中使用ndk-r9d

非常感谢任何建议。

添加Android.mk

LOCAL_PATH := $(call my-dir)

include $(CLEAR_VARS)

LOCAL_MODULE    := tutorial-1
LOCAL_SRC_FILES := tutorial-1.c
LOCAL_SHARED_LIBRARIES := gstreamer_android
LOCAL_LDLIBS := -llog
include $(BUILD_SHARED_LIBRARY)

ifndef GSTREAMER_SDK_ROOT
ifndef GSTREAMER_SDK_ROOT_ANDROID
$(error GSTREAMER_SDK_ROOT_ANDROID is not defined!)
endif
GSTREAMER_SDK_ROOT        := $(GSTREAMER_SDK_ROOT_ANDROID)
endif
GSTREAMER_NDK_BUILD_PATH  := $(GSTREAMER_SDK_ROOT)/share/gst-android/ndk-    build/
GSTREAMER_PLUGINS         := coreelements
include $(GSTREAMER_NDK_BUILD_PATH)/gstreamer.mk

Answer 1

LOCAL_LDLIBS：= -llog

到

LOCAL_LDLIBS：= -llog -landroid

Answer 2

Android没有librt。这一切都在libc。

据推测，include $(GSTREAMER_NDK_BUILD_PATH)/gstreamer.mk正在向{ldlibs添加-lrt。

ndk-build gstreamer android教程：找不到-lrt

2 个答案: