CODEWITHSUNDEEP
gccg++cygwinopencl
John Rambo
John Rambo

Reputation: 156

No OpenCL on Cygwin but it is installed on Windows - how to install?

I am trying to compile something using OpenCL under Cygwin (gcc/g++ 4.7.3-1) on Win8. but it failes, saying, there is no OpenCL, but there is (Nvidia SDK):

/usr/lib/gcc/i686-pc-cygwin/4.7.3/../../../../i686-pc-cygwin/bin/ld: cannot find -lOpenCL
collect2: Fehler: ld returns 1
error: command 'g++' failed with exit status 1

Can someone help, please?

Upvotes: 2

Views: 2236

Answers (1)

user1940376
user1940376

Reputation:

You probably need to tell gcc where to find the library, in addition to the library name. This can be done with a single command line option this way (using AMD OpenCL as an example):

gcc hello.c "%AMDAPPSDKROOT%/lib/x86_64/"libOpenCL.a

If you use the -l option, you also need to use the -L option to extend the library search path to include the OpenCL directory:

gcc hello.c -L"%AMDAPPSDKROOT%/lib/x86_64/" -lOpenCL

Upvotes: 4

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