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-rw-r--r--Help/variable/CMAKE_PREFIX_PATH.rst3
1 files changed, 3 insertions, 0 deletions
diff --git a/Help/variable/CMAKE_PREFIX_PATH.rst b/Help/variable/CMAKE_PREFIX_PATH.rst
index 1d4fd0b426..3004b4b03e 100644
--- a/Help/variable/CMAKE_PREFIX_PATH.rst
+++ b/Help/variable/CMAKE_PREFIX_PATH.rst
@@ -10,6 +10,9 @@ documentation.
By default this is empty. It is intended to be set by the project.
+There is also an environment variable :envvar:`CMAKE_PREFIX_PATH`, which is is used
+as an additional list of search prefixes.
+
See also :variable:`CMAKE_SYSTEM_PREFIX_PATH`, :variable:`CMAKE_INCLUDE_PATH`,
:variable:`CMAKE_LIBRARY_PATH`, :variable:`CMAKE_PROGRAM_PATH`, and
:variable:`CMAKE_IGNORE_PATH`.