[CMake] How do you determine what compiler is being used?

[Eric Noulard]

2008/12/3 Bartlett, Roscoe A <rabartl at sandia.gov>:
> Hello,
>
> How can determine what general type of compiler is being used?  For example,
> how can we determine if our project is being configured to use the Sun CC
> compiler?  In C++ code I can just check for the define __sun but how can I
> get this info in my CMakeLists.txt file?  I could use try_compile(...) to
> figure this out but is there already a way to do this?

There are some variables like
CMAKE_COMPILER_IS_GNUCC
MINGW
MSVC

but there is nothing for Sun CC
http://www.cmake.org/Wiki/CMake_Useful_Variables

You may guess it using
CMAKE_C_COMPILER
which contains the full path to the compiler.

may be the set of recognized compilers may be enhanced using
macro predefined by those compilers:
http://predef.sourceforge.net/precomp.html

-- 
Erk