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-rw-r--r--Help/manual/cmake-developer.7.rst4
1 files changed, 3 insertions, 1 deletions
diff --git a/Help/manual/cmake-developer.7.rst b/Help/manual/cmake-developer.7.rst
index 65b3a72..e18250c 100644
--- a/Help/manual/cmake-developer.7.rst
+++ b/Help/manual/cmake-developer.7.rst
@@ -80,7 +80,9 @@ When adding the first supported feature to a particular CompilerId, it is
necessary to list support for all features known to cmake (See
:variable:`CMAKE_C_COMPILE_FEATURES` and
:variable:`CMAKE_CXX_COMPILE_FEATURES` as appropriate), where available for
-the compiler.
+the compiler. Furthermore, set ``CMAKE_<LANG>_STANDARD_DEFAULT`` to the
+default language standard level the compiler uses, or to the empty string
+if the compiler has no notion of standard levels (such as ``MSVC``).
It is sensible to record the features for the most recent version of a
particular CompilerId first, and then work backwards. It is sensible to