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| -rw-r--r-- | lib/spack/docs/build_settings.rst | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/lib/spack/docs/build_settings.rst b/lib/spack/docs/build_settings.rst index 6e7e88bf4a..ff597922e9 100644 --- a/lib/spack/docs/build_settings.rst +++ b/lib/spack/docs/build_settings.rst @@ -66,8 +66,18 @@ This example lists three installations of OpenMPI, one built with GCC, one built with GCC and debug information, and another built with Intel. If Spack is asked to build a package that uses one of these MPIs as a dependency, it will use the pre-installed OpenMPI in -the given directory. ``packages.yaml`` can also be used to specify modules -to load instead of the installation prefixes. +the given directory. Note that the specified path is the top-level +install prefix, not the ``bin`` subdirectory. + +``packages.yaml`` can also be used to specify modules to load instead +of the installation prefixes. The following example says that module +``CMake/3.7.2`` provides cmake version 3.7.2. + +.. code-block:: yaml + + cmake: + modules: + cmake@3.7.2: CMake/3.7.2 Each ``packages.yaml`` begins with a ``packages:`` token, followed by a list of package names. To specify externals, add a ``paths`` or ``modules`` |