A useful resource on how to detect compilation environment based on predefined macros : 
  * last available version on the //Wayback Machine//: https://web.archive.org/web/20191011040139/http://nadeausoftware.com/articles/2011/12/c_c_tip_how_list_compiler_predefined_macros;
  * original URL: http://nadeausoftware.com/articles/2011/12/c_c_tip_how_list_compiler_predefined_macros.

Other ressource : https://sourceforge.net/p/predef/wiki/Compilers/.

<note tip>To list predefined preprocessor macros, ''echo | g++ -dM -E -  | more'' can be used (''g++'' can be replaced by other //g(cc|%%++%%)//-like compiler.
</note>

<note warning>For //emscripten// (based on //LLVM//), the above command (''echo | em++ ...'') displays macros which are stripped out. The ''%%__%%x86_64%%__%%'' macro, for example.</note>

  * [[./MinGW/]],
  * [[./MSVC/|Visual C++]],
  * [[./CLang/]],
  * [[./Codeblocks/|Code::Blocks]].