为什么我的openCL构建在OS X上失败？

概述我在OS X 10.7 Lion上安装了所有的开发工具,但是当我在一个相对简单的程序上运行GCC时,只需要对clCreateProgramFromSource之类的openCL函数进行几次调用,我得到以下错误列表： Undefined symbols for architecture x86_64: "_CreateContext", referenced from: _build_k 我在OS X 10.7 lion上安装了所有的开发工具,但是当我在一个相对简单的程序上运行GCC时,只需要对clCreateProgramFromSource之类的openCL函数进行几次调用,我得到以下错误列表：

Undefined symbols for architecture x86_64:  "_CreateContext",referenced from:    _build_kernel in ccFuZYMI.o  "_GetDevices",referenced from:    _build_kernel in ccFuZYMI.o  "_CreateCommandQueue",referenced from:    _build_kernel in ccFuZYMI.o  "_clCreateProgramWithSource",referenced from:    _build_kernel in ccFuZYMI.o  "_clBuildProgram",referenced from:    _build_kernel in ccFuZYMI.o  "_clCreateKernel",referenced from:    _build_kernel in ccFuZYMI.o  "_clCreateBuffer",referenced from:    _build_kernel in ccFuZYMI.o  "_clEnqueueWriteBuffer",referenced from:    _sync_run_kernel in ccFuZYMI.o  "_clSetKernelArg",referenced from:    _sync_run_kernel in ccFuZYMI.o  "_clEnqueueNDRangeKernel",referenced from:    _sync_run_kernel in ccFuZYMI.o  "_clEnqueueReadBuffer",referenced from:    _sync_run_kernel in ccFuZYMI.o  "_clReleaseContext",referenced from:    _destroy_kernel in ccFuZYMI.o  "_clReleaseCommandQueue",referenced from:    _destroy_kernel in ccFuZYMI.o  "_clReleaseMemObject",referenced from:    _destroy_kernel in ccFuZYMI.o  "_clReleaseProgram",referenced from:    _destroy_kernel in ccFuZYMI.o  "_clReleaseKernel",referenced from:    _destroy_kernel in ccFuZYMI.old: symbol(s) not found for architecture x86_64

还有一些其他警告,但在计算阶段没有其他错误.这是(如果不清楚)链接器错误.它似乎能够在创建目标文件时看到头文件中的定义,因为它给了我关于不兼容指针类型的警告.

我曾尝试粘贴到xcode项目中,但我得到了完全相同的错误.我试过only other OS X Lion / OpenCL result’s solution,但没有用.

解决方法 看起来你错过了OpenCL框架 – 试试：

$gcc -Wall foo.c -framework OpenCL -o foo

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