LINK_LIBRARY_OVERRIDEΒΆ
New in version 3.24.
To resolve incompatible features introduced by LINK_LIBRARY
generator
expression, this property offers the possibility to override, per link-item
(CMake
target or external library) involved in the link step, any defined
features with a new one.
This property takes a ;-list of override declarations which have the following format:
feature[,link-item]*
For the list of link-item
(CMake
target or external library) specified,
the feature feature
will be used in place of any declared feature. For
example:
add_library(lib1 ...)
target_link_libraries(lib1 PUBLIC "$<LINK_LIBRARY:feature1,external>")
add_library(lib2 ...)
target_link_libraries(lib2 PUBLIC "$<LINK_LIBRARY:feature2,lib1>")
add_library(lib3 ...)
target_link_libraries(lib3 PRIVATE lib1 lib2)
# Here, lib1 has two different features which prevents to link lib3
# So, define LINK_LIBRARY_OVERRIDE property to ensure correct link
set_property(TARGET lib3 PROPERTY LINK_LIBRARY_OVERRIDE "feature2,lib1,external")
# The lib1 and external will be used with FEATURE2 to link lib3
It is also possible to override any feature with the pre-defined feature
DEFAULT
to get the standard behavior (i.e. no feature):
set_property(TARGET lib3 PROPERTY LINK_LIBRARY_OVERRIDE "DEFAULT,lib1"
"feature2,external")
# The lib1 will be used without any feature and external will use feature2 to link lib3
Contents of LINK_LIBRARY_OVERRIDE
may use
generator expressions
.
See also LINK_LIBRARY_OVERRIDE_<LIBRARY>
target property for
a per linked target oriented approach to override features.
For more information about features, see
CMAKE_<LANG>_LINK_LIBRARY_USING_<FEATURE>
and CMAKE_LINK_LIBRARY_USING_<FEATURE>
variables.