Ndk 工具链抱怨缺少 lrt 选项

Question

在 NDK-build 上出现以下错误

/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/linux- x86_64/lib/gcc/arm-linux-androideabi/4.9.x/../../../../arm-linux-androideabi/bin/ld：错误：找不到 -lrt

我更新了 Android.mk lrt 的绝对路径，但问题没有解决

我的Android.mk在这里

LOCAL_PATH := $(call my-dir)    
THIS_PATH  := $(LOCAL_PATH)    
include $(CLEAR_VARS)    
OPENCV_CAMERA_MODULES   := off    
OPENCV_INSTALL_MODULES  := off    
OPENCV_LIB_TYPE         := STATIC    
OPENCV_ANDROID_SDK_HOME := /home/Ravikant/Desktop/OpenCV-android-sdk    
include $(OPENCV_ANDROID_SDK_HOME)/sdk/native/jni/OpenCV.mk    
OPENCV_INCLUDE_DIR        := $(OPENCV_ANDROID_SDK_HOME)/sdk/native/jni/include    
OPENCV_LIBS_DIR           := $(OPENCV_ANDROID_SDK_HOME)/sdk/native/libs/$(TARGET_ARCH_ABI)  
OPENCV_3RD_PARTY_LIBS_DIR := $(OPENCV_ANDROID_SDK_HOME)/sdk/native/3rdparty/libs/$(TARGET_ARCH_ABI)

LOCAL_MODULE    := myModule    
LOCAL_CFLAGS := -w    
LOCAL_SRC_FILES := searchPath.cpp auxiliary.cpp      
LOCAL_LDFLAGS := -fopenmp -llog -ljnigraphics -L$(OPENCV_LIBS_DIR)    
LOCAL_SHARED_LIBRARIES += prebuilt_for_opencv_java    
    -lopencv_core         \    
    -lopencv_highgui      \    
    -lopencv_objdetect    \    
    -lopencv_imgproc      \    
    -lopencv_imgcodecs    \    
    -lopencv_photo    

    include $(BUILD_SHARED_LIBRARY)



LOCAL_PATH := $(call my-dir)

include $(CLEAR_VARS)

LOCAL_MODULE    := prebuilt_for_opencv_java

LOCAL_SRC_FILES := $(OPENCV_LIBS_DIR)/libopencv_java3.so

include $(PREBUILT_SHARED_LIBRARY)

任何人都可以告诉它是 ndk 配置问题还是其他问题。

Answer 1

我之前遇到过类似的问题。

-fopenmp flag implies both the -lgomp and -lrt

所以只需将 -fopenmp 替换为 -lgomp 然后它应该可以工作

Ndk 工具链抱怨缺少 lrt 选项

Ndk toolchain complaining about missing lrt option

android-ndk

librt