mirror of
https://github.com/reactos/CMake.git
synced 2024-11-24 03:59:58 +00:00
38 lines
1.7 KiB
CMake
38 lines
1.7 KiB
CMake
# - 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(${CMAKE_DEPENDENT_OPTION_DEP})
|
|
ELSE(${CMAKE_DEPENDENT_OPTION_DEP})
|
|
SET(${option}_AVAILABLE 0)
|
|
ENDIF(${CMAKE_DEPENDENT_OPTION_DEP})
|
|
ENDFOREACH(d)
|
|
IF(${option}_AVAILABLE)
|
|
OPTION(${option} "${doc}" "${default}")
|
|
SET(${option} "${${option}}" CACHE BOOL "${doc}" FORCE)
|
|
ELSE(${option}_AVAILABLE)
|
|
IF(${option} MATCHES "^${option}$")
|
|
ELSE(${option} MATCHES "^${option}$")
|
|
SET(${option} "${${option}}" CACHE INTERNAL "${doc}")
|
|
ENDIF(${option} MATCHES "^${option}$")
|
|
SET(${option} ${force})
|
|
ENDIF(${option}_AVAILABLE)
|
|
ELSE(${option}_ISSET MATCHES "^${option}_ISSET$")
|
|
SET(${option} "${${option}_ISSET}")
|
|
ENDIF(${option}_ISSET MATCHES "^${option}_ISSET$")
|
|
ENDMACRO(CMAKE_DEPENDENT_OPTION)
|