Saturday, October 12, 2013

CUDA 5.5 and Xcode 5

The latest Xcode 5 update seems to have broken nvcc.
If you try to compile a  CUDA program, you will see a similar error:

%nvcc -c
clang: error: unsupported option '-dumpspecs'
clang: error: no input files

There is a simple workaround.

%nvcc -ccbin=/usr/bin/clang -c

A more convenient way of adding this, it is to define an alias for nvcc.
You can add this line to your .bash_profile

alias nvcc='nvcc -ccbin=/usr/bin/clang'

or just define it in your shell,

alias 'nvcc=nvcc -ccbin=/usr/bin/clang'