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Help: Clarify the use of PROJECT_SOURCE_DIR

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The value of the PROJECT_SOURCE_DIR variable is not always the source
directory of the "most recent project command". If the project was
included via add_subdirectory, variable scoping will prevent this
value to change in the parent scope.

Signed-off-by: Nicolas Bock <nicolasbock@gmail.com>
This commit is contained in:
Nicolas Bock
2020-04-27 15:46:38 -06:00
committed by Craig Scott
parent 265fb71c91
commit bd6e437e3e
1 changed files with 5 additions and 3 deletions
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8
Help/variable/PROJECT_SOURCE_DIR.rst
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@@ -1,6 +1,8 @@
PROJECT_SOURCE_DIR
------------------
Top level source directory for the current project.
This is the source directory of the most recent :command:`project` command.
This is the source directory of the last call to the
:command:`project` command made in the current directory scope or one
of its parents. Note, it is not affected by calls to
:command:`project` made within a child directory scope (i.e. from
within a call to :command:`add_subdirectory` from the current scope).