交叉编译openCV应用程序

大家好，我正在用c++为ARM做一个应用程序。我有一个应用程序原型，我用交叉编译编译，它在ARM上工作得很好。我所做的是:

首先我得到。o文件，像这样

arm-linux-g++ -c PrototipoTRU.cpp    

然后我得到。exe像这样(我的应用程序使用线程)

arm-linux-g++ PrototipoTRU.o -o tru2 -pthread

一切都很完美

我的问题是当我试图编译使用OpenCV的。cpp文件时。我试过了:

首先我试着得到。o:

 arm-linux-g++ -c camera.cpp

不行，我得到这样的输出:

IPCamera.cpp:5:30: error: opencv2/opencv.hpp: No such file or directory
IPCamera.cpp:6:39: error: opencv2/highgui/highgui.hpp: No such file or directory
IPCamera.cpp:7:39: error: opencv2/imgproc/imgproc.hpp: No such file or directory
IPCamera.cpp:11:22: error: X11/Xlib.h: No such file or directory
IPCamera.cpp:16: error: 'cv' is not a namespace-name
IPCamera.cpp:16: error: expected namespace-name before ';' token
IPCamera.cpp: In function 'int main(int, char**)':
IPCamera.cpp:46: error: 'cv' has not been declared
IPCamera.cpp:46: error: expected ';' before 'cap'
IPCamera.cpp:52: error: 'Display' was not declared in this scope
IPCamera.cpp:52: error: 'disp' was not declared in this scope
IPCamera.cpp:52: error: 'XOpenDisplay' was not declared in this scope
IPCamera.cpp:53: error: 'Screen' was not declared in this scope
IPCamera.cpp:53: error: 'scrn' was not declared in this scope
IPCamera.cpp:53: error: 'DefaultScreenOfDisplay' was not declared in this scope
IPCamera.cpp:63: error: 'cv' has not been declared
IPCamera.cpp:63: error: expected ';' before 'frame'
IPCamera.cpp:66: error: 'cv' has not been declared
IPCamera.cpp:66: error: 'CV_WINDOW_NORMAL' was not declared in this scope
IPCamera.cpp:68: error: 'cvMoveWindow' was not declared in this scope
IPCamera.cpp:73: error: 'CV_WND_PROP_FULLSCREEN' was not declared in this scope
IPCamera.cpp:73: error: 'CV_WINDOW_FULLSCREEN' was not declared in this scope
IPCamera.cpp:73: error: 'cvSetWindowProperty' was not declared in this scope
IPCamera.cpp:79: error: 'cap' was not declared in this scope
IPCamera.cpp:82: error: 'frame' was not declared in this scope
IPCamera.cpp:89: error: 'cv' has not been declared
IPCamera.cpp:92: error: 'cv' has not been declared

所以似乎有一些问题与链接，但如果这样做:

 g++ -c IPCamera.cpp

我得到了。o文件，但很明显，当我得到。exe时，它在ARM中不起作用。我不明白的是为什么如果我编译一个没有opencv的应用程序，就像第一个例子一样，arm-linux-g++正常工作，当我试图编译opencv应用程序no.

我试着编译也像这样:

 arm-linux-g++ -c IPCamera.cpp `pkg-config opencv --libs --cflags`

 g++ -c IPCamera.cpp `pkg-config opencv --libs --cflags`

它的工作原理。所以我猜这是一个路径问题，但我不知道如何解决它。

谢谢大家

嗨，dennisfen，这是我文件的内容:

 set(CMAKE_SYSTEM_NAME Linux)
 set(CMAKE_SYSTEM_VERSION 1)
 set(CMAKE_SYSTEM_PROCESSOR arm)
 set(GCC_COMPILER_VERSION "4.6" CACHE STRING "GCC Compiler version")
 set(FLOAT_ABI_SUFFIX "")
 if (NOT SOFTFP)
   set(FLOAT_ABI_SUFFIX "hf")
 endif()
 set(CMAKE_C_COMPILER    arm-linux- 
 gnueabi${FLOAT_ABI_SUFFIX}-gcc-${GCC_COMPILER_VERSION})
 set(CMAKE_CXX_COMPILER  arm-linux-
 gnueabi${FLOAT_ABI_SUFFIX}-g++-${GCC_COMPILER_VERSION})
 set(ARM_LINUX_SYSROOT /usr/arm-linux-gnueabi${FLOAT_ABI_SUFFIX} CACHE PATH "ARM cross 
 compilation system root")
 set(CMAKE_CXX_FLAGS           ""                    CACHE STRING "c++ flags")
 set(CMAKE_C_FLAGS             ""                    CACHE STRING "c flags")
 set(CMAKE_SHARED_LINKER_FLAGS ""                    CACHE STRING "shared linker flags")
 set(CMAKE_MODULE_LINKER_FLAGS ""                    CACHE STRING "module linker flags")
 set(CMAKE_EXE_LINKER_FLAGS    "-Wl,-z,nocopyreloc"  CACHE STRING "executable linker 
 flags")
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mthumb -fdata-sections -Wa,--noexecstack 
 -fsigned-char -Wno-psabi")
 set(CMAKE_C_FLAGS   "${CMAKE_C_FLAGS} -mthumb -fdata-sections -Wa,--noexecstack 
 -fsigned-char -Wno-psabi")
 set(CMAKE_SHARED_LINKER_FLAGS "-Wl,--fix-cortex-a8 -Wl,--no-undefined -Wl,--gc-
 sections -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now ${CMAKE_SHARED_LINKER_FLAGS}")
 set(CMAKE_MODULE_LINKER_FLAGS "-Wl,--fix-cortex-a8 -Wl,--no-undefined -Wl,--gc-
 sections -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now ${CMAKE_MODULE_LINKER_FLAGS}")
 set(CMAKE_EXE_LINKER_FLAGS    "-Wl,--fix-cortex-a8 -Wl,--no-undefined -Wl,--gc-
 sections -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now ${CMAKE_EXE_LINKER_FLAGS}")