CMake unable to determine linker language with C++

Question

I\'m attempting to run a cmake hello world program on Windows 7 x64 with both Visual Studio 2010 and Cygwin, but can\'t seem to get either to work. My directory structure is

Answer 1

Try changing

PROJECT(HelloWorld C)

into

PROJECT(HelloWorld C CXX)

or just

PROJECT(HelloWorld)

See: http://www.cmake.org/cmake/help/v2.8.8/cmake.html#command:project