CMake Cookbook

How to do it

How can we select a specific compiler? For example, what if we want to use the Intel or Portland Group compilers? CMake stores compilers for each language in the CMAKE_<LANG>_COMPILER variable, where <LANG> is any of the supported languages, for our purposes CXX, C, or Fortran. The user can set this variable in one of two ways:

1. By using the -D option in the CLI, for example:

$ cmake -D CMAKE_CXX_COMPILER=clang++ ..

2. By exporting the environment variables CXX for the C++ compiler, CC for the C compiler, and FC for the Fortran compiler. For example, use this command to use clang++ as the C++ compiler:

$ env CXX=clang++ cmake ..

Any of the recipes discussed so far can be configured for use with any other compiler by passing the ...