Fix doc on how to select the compiler before compiling

diff --git a/docs/source/Installing_SimGrid.rst b/docs/source/Installing_SimGrid.rst
index 5cb50fb..4751ceb 100644 (file)
--- a/docs/source/Installing_SimGrid.rst
+++ b/docs/source/Installing_SimGrid.rst
@@ -195,7 +195,7 @@ Note that the dot at the end is mandatory (see :ref:`install_cmake_outsrc`).
 
 .. code-block:: console
 
-   $ cmake -DCC=clang -DCXX=clang++ .
+   $ cmake -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++ .
 
 SimGrid compilation options
 """""""""""""""""""""""""""