1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
|
macro(itk_set_with_default var value)
if(NOT ${var})
set(${var} "${value}")
endif()
endmacro()
# Bridge an old, deprecated, setting to a new replacement setting.
#
# Use this function when a user-visible flag is being renamed or otherwise
# replaced. If the old value is set, it will be given as the default value,
# otherwise the given default value will be used. This returned value should
# then be used in the ``set(CACHE)`` or ``option()`` call for the new value.
#
# If the old value is set, it will warn that it is deprecated for the new name.
#
# If replacing the setting ``OLD_SETTING`` with ``NEW_SETTING``, its usage
# would look like:
#
# itk_deprecated_setting(default_setting NEW_SETTING OLD_SETTING "default value")
# set(NEW_SETTING "${default_setting}"
# CACHE STRING "Documentation for the setting.")
function(
itk_deprecated_setting
output_default
new
old
intended_default)
set(default "${intended_default}")
if(DEFINED "${old}")
message(WARNING "The '${old}' variable is deprecated for '${new}'.")
set(default "${${old}}")
endif()
set("${output_default}"
"${default}"
PARENT_SCOPE)
endfunction()
|
