-.. Copyright 2005-2018
+.. Copyright 2005-2019
.. _install:
of the framework to compile while **Generic options** are provided by
cmake itself.
+.. warning::
+
+ Our build system often gets mixed up if you change something on
+ your machine after the build configuration. For example, if
+ SimGrid fails to detect your fortran compiler, it is not enough to
+ install a fortran compiler. You also need to clean every Cmake
+ files, such as ``CMakeCache.txt``. Since Cmake also generates some
+ files in the tree, you may need to wipe out your complete tree and
+ start with a fresh one when you install new dependencies.
+
+ Another (better) solution is to :ref:`build out of the source tree
+ <install_cmake_outsrc>`.
+
Generic build-time options
""""""""""""""""""""""""""