如何在CMake文件中添加头文件路径 [英] How to add header file path in CMake file

问题描述

我是OpenCL的新手，但是我已经在互联网的帮助下在OpenCL中写了矢量添加代码，我已经包括一个头文件，即使用#include的CL / cl.h。我使用NVIDIA显卡，OpenCL实现是NVIDIA_GPU_Computing_SDK。我的OpenCL头文件位于此路径/ opt / NVIDIA_GPU_Computing_SDK / OpenCL / common / inc -l OpenCL（不带引号）。我可以通过在编译我的代码时添加这个路径通过linux终端运行OpenCL程序。但现在我想写这个代码的CMake文件。 CMake文件工作正常为C程序，但不是OpenCL程序，因为这个路径问题。在终端i用于输入$cmake。（不带引号），在这个$make（不带引号）后，它将搜索由cmake创建的Makefile，现在我的错误是输入命令make没有引号）：致命错误：CL / cl.h：没有这样的文件或目录！现在告诉我如何将这个头文件包含到cmake文件中？

解决方案

你需要把这些行放入CMakeLists.txt ：

  include_directories（/ opt / NVIDIA_GPU_Computing_SDK / OpenCL / common / inc）
 link_directories（/ opt / NVIDIA_GPU_Computing_SDK / OpenCL / common /< lib或类似>）
 
 add_executable（yourexe src1.c ...）
 target_link_libraries（yourexe OpenCL）
  / pre> 
 
 
但是请注意，它不可移植，因为OpenCL SDK可以在另一台机器上的其他位置。正确的方法是使用 FindOpenCL.cmake 模块。
 
I am new to OpenCL, but i have written vector addition code in OpenCL with the help of internet and i have included one header file i.e. CL/cl.h using #include.  I am using NVIDIA graphic card and the OpenCL implementation is NVIDIA_GPU_Computing_SDK. My OpenCL header files are residing at this path "/opt/NVIDIA_GPU_Computing_SDK/OpenCL/common/inc -l OpenCL" (without quotes). I can run OpenCL programs through linux terminal by adding this path when compiling my code. But now i want to write CMake file for this code. CMake files are working fine for C programs, but not OpenCL programs because of this Path problem. In terminal i used to enter $"cmake ."(without quotes), after this $"make"(without quotes), it will search for a Makefile which is created by cmake, now my error is  after entering command "make"(without quotes) : fatal error: CL/cl.h: No such file or directory! now tell me how can i include this header file into cmake file?
解决方案
You will need to put these lines into CMakeLists.txt:
include_directories(/opt/NVIDIA_GPU_Computing_SDK/OpenCL/common/inc)
link_directories(/opt/NVIDIA_GPU_Computing_SDK/OpenCL/common/<lib or something similar>)

add_executable(yourexe src1.c ...)
target_link_libraries(yourexe OpenCL)
But beware that it's not portable, because OpenCL SDK can be somewhere else on another machine. The proper way to do this is to use FindOpenCL.cmake module.

                        
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