diff options
Diffstat (limited to 'Help/variable')
| -rw-r--r-- | Help/variable/CACHE.rst | 17 | ||||
| -rw-r--r-- | Help/variable/ENV.rst | 7 |
2 files changed, 21 insertions, 3 deletions
diff --git a/Help/variable/CACHE.rst b/Help/variable/CACHE.rst new file mode 100644 index 0000000..230739a --- /dev/null +++ b/Help/variable/CACHE.rst @@ -0,0 +1,17 @@ +CACHE +----- + +Read cache variables. + +Use the syntax ``$CACHE{VAR}`` to read cache entry ``VAR``. +See the :ref:`cmake-language(7) variables <CMake Language Variables>` +documentation for more complete documentation of the interaction of +normal variables and cache entries. + +When evaluating :ref:`Variable References` of the form ``${VAR}``, +CMake first searches for a normal variable with that name, and if not +found CMake will search for a cache entry with that name. +The ``$CACHE{VAR}`` syntax can be used to do direct cache lookup and +ignore any existing normal variable. + +See the :command:`set` command to see how to write cache variables. diff --git a/Help/variable/ENV.rst b/Help/variable/ENV.rst index 368152a..98677dd 100644 --- a/Help/variable/ENV.rst +++ b/Help/variable/ENV.rst @@ -1,7 +1,8 @@ ENV --- -Access environment variables. +Read environment variables. -Use the syntax ``$ENV{VAR}`` to read environment variable ``VAR``. See also -the :command:`set` command to set ``ENV{VAR}``. +Use the syntax ``$ENV{VAR}`` to read environment variable ``VAR``. + +See the :command:`set` command to see how to write environment variables. |