mirror of
https://github.com/reactos/CMake.git
synced 2024-11-23 19:49:51 +00:00
51 lines
1.8 KiB
CMake
51 lines
1.8 KiB
CMake
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
|
|
# file Copyright.txt or https://cmake.org/licensing for details.
|
|
|
|
#[=======================================================================[.rst:
|
|
CMakeDependentOption
|
|
--------------------
|
|
|
|
Macro to provide an option dependent on other options.
|
|
|
|
This macro presents an option to the user only if a set of other
|
|
conditions are true. When the option is not presented a default value
|
|
is used, but any value set by the user is preserved for when the
|
|
option is presented again. Example invocation:
|
|
|
|
::
|
|
|
|
CMAKE_DEPENDENT_OPTION(USE_FOO "Use Foo" ON
|
|
"USE_BAR;NOT USE_ZOT" OFF)
|
|
|
|
If USE_BAR is true and USE_ZOT is false, this provides an option
|
|
called USE_FOO that defaults to ON. Otherwise, it sets USE_FOO to
|
|
OFF. If the status of USE_BAR or USE_ZOT ever changes, any value for
|
|
the USE_FOO option is saved so that when the option is re-enabled it
|
|
retains its old value.
|
|
#]=======================================================================]
|
|
|
|
macro(CMAKE_DEPENDENT_OPTION option doc default depends force)
|
|
if(${option}_ISSET MATCHES "^${option}_ISSET$")
|
|
set(${option}_AVAILABLE 1)
|
|
foreach(d ${depends})
|
|
string(REGEX REPLACE " +" ";" CMAKE_DEPENDENT_OPTION_DEP "${d}")
|
|
if(${CMAKE_DEPENDENT_OPTION_DEP})
|
|
else()
|
|
set(${option}_AVAILABLE 0)
|
|
endif()
|
|
endforeach()
|
|
if(${option}_AVAILABLE)
|
|
option(${option} "${doc}" "${default}")
|
|
set(${option} "${${option}}" CACHE BOOL "${doc}" FORCE)
|
|
else()
|
|
if(${option} MATCHES "^${option}$")
|
|
else()
|
|
set(${option} "${${option}}" CACHE INTERNAL "${doc}")
|
|
endif()
|
|
set(${option} ${force})
|
|
endif()
|
|
else()
|
|
set(${option} "${${option}_ISSET}")
|
|
endif()
|
|
endmacro()
|