This is a CMake Environment Variable. Its initial value is taken from the calling process environment.

Preferred executable for compiling C language files. Will only be used by CMake on the first configuration to determine C compiler, after which the value for CC is stored in the cache as CMAKE_C_COMPILER. For any configuration run (including the first), the environment variable will be ignored if the CMAKE_C_COMPILER variable is defined.


Options that are required to make the compiler work correctly can be included; they can not be changed.

$ export CC="custom-compiler --arg1 --arg2"