compilation.md

@@ -100,6 +100,8 @@ It is especially important TO NOT RUN the `cmake` command from the
 `lmgc90_user_xxxx` directory (see the [faq](./faq#known-compilation-errors))
 in this case.
 
+Currently building LMGC90 with openMP is not supported in Anaconda environment.
+
 Whatever the method, if everything went well, then you can start the _Anaconda Navigator_ application.
 The first thing is to activate the environment to use LMGC90 by
 selection _lmgc90_ in the menu next to _Applications on_ on the upper part of the window.