2016-09-27 19:01:08 +00:00
|
|
|
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
|
|
|
|
# file Copyright.txt or https://cmake.org/licensing for details.
|
|
|
|
|
2013-10-15 15:17:36 +00:00
|
|
|
#.rst:
|
|
|
|
# CMakeDependentOption
|
|
|
|
# --------------------
|
|
|
|
#
|
|
|
|
# Macro to provide an option dependent on other options.
|
|
|
|
#
|
2006-10-19 18:48:12 +00:00
|
|
|
# This macro presents an option to the user only if a set of other
|
2013-10-15 15:17:36 +00:00
|
|
|
# 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
|
2006-10-19 18:48:12 +00:00
|
|
|
# retains its old value.
|
2009-09-28 15:46:51 +00:00
|
|
|
|
2012-08-13 17:47:32 +00:00
|
|
|
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(${CMAKE_DEPENDENT_OPTION_DEP})
|
2012-08-13 17:50:14 +00:00
|
|
|
else()
|
2012-08-13 17:47:32 +00:00
|
|
|
set(${option}_AVAILABLE 0)
|
2012-08-13 17:50:14 +00:00
|
|
|
endif()
|
|
|
|
endforeach()
|
2012-08-13 17:47:32 +00:00
|
|
|
if(${option}_AVAILABLE)
|
|
|
|
option(${option} "${doc}" "${default}")
|
|
|
|
set(${option} "${${option}}" CACHE BOOL "${doc}" FORCE)
|
2012-08-13 17:50:14 +00:00
|
|
|
else()
|
2012-08-13 17:47:32 +00:00
|
|
|
if(${option} MATCHES "^${option}$")
|
2012-08-13 17:50:14 +00:00
|
|
|
else()
|
2012-08-13 17:47:32 +00:00
|
|
|
set(${option} "${${option}}" CACHE INTERNAL "${doc}")
|
2012-08-13 17:50:14 +00:00
|
|
|
endif()
|
2012-08-13 17:47:32 +00:00
|
|
|
set(${option} ${force})
|
2012-08-13 17:50:14 +00:00
|
|
|
endif()
|
|
|
|
else()
|
2012-08-13 17:47:32 +00:00
|
|
|
set(${option} "${${option}_ISSET}")
|
2012-08-13 17:50:14 +00:00
|
|
|
endif()
|
|
|
|
endmacro()
|