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-rw-r--r--Help/variable/CMAKE_LANG_FLAGS.rst3
-rw-r--r--Help/variable/CMAKE_LANG_FLAGS_INIT.rst2
2 files changed, 5 insertions, 0 deletions
diff --git a/Help/variable/CMAKE_LANG_FLAGS.rst b/Help/variable/CMAKE_LANG_FLAGS.rst
index 14b2694..11864f8 100644
--- a/Help/variable/CMAKE_LANG_FLAGS.rst
+++ b/Help/variable/CMAKE_LANG_FLAGS.rst
@@ -15,3 +15,6 @@ This is initialized for each language from environment variables:
Initialized by the :envvar:`CUDAFLAGS` environment variable.
* ``CMAKE_Fortran_FLAGS``:
Initialized by the :envvar:`FFLAGS` environment variable.
+
+This value is a command-line string fragment. Therefore, multiple options
+should be separated by spaces, and options with spaces should be quoted.
diff --git a/Help/variable/CMAKE_LANG_FLAGS_INIT.rst b/Help/variable/CMAKE_LANG_FLAGS_INIT.rst
index 67ff2cb..ca13a29 100644
--- a/Help/variable/CMAKE_LANG_FLAGS_INIT.rst
+++ b/Help/variable/CMAKE_LANG_FLAGS_INIT.rst
@@ -12,6 +12,8 @@ the contents of a ``xxxFLAGS`` environment variable will be prepended,
where ``xxx`` will be language-specific but not necessarily the same as
``<LANG>`` (e.g. :envvar:`CXXFLAGS` for ``CXX``, :envvar:`FFLAGS` for
``Fortran``, and so on).
+This value is a command-line string fragment. Therefore, multiple options
+should be separated by spaces, and options with spaces should be quoted.
See also the configuration-specific
:variable:`CMAKE_<LANG>_FLAGS_<CONFIG>_INIT` variable.