glew-cmake/build/cmake/CopyImportedTargetProperties.cmake
Tamas Kenez d2e6823451 cmake: install config-module
Installs a config module if CMake verion >= 2.8.12.
The config-module creates the import library targets
built in the project (glew, glew_s, glewmx, glewmx_s)
but in accordance with the FindGLEW module shipped with
CMake, it also creates GLEW::GLEW and GLEW::GLEWMX.

GLEW::GLEW and GLEW::GLEWMX will be simply copies of
glew/glewmx or glew_s/glewmx_s. If both versions are
available they alias the shared versions.

The default behaviour can be changed either when installing
or when using the package:

- Set BUILD_SHARED_LIBS to OFF or ON when building and
  installing GLEW. This controls which libraries
  (shared or static) will be installed (and not which
  will be built).
- Set GLEW_USE_STATIC_LIBS to OFF or ON before calling
  `find_package(GLEW CONFIG REQUIRED)` to force
  the config-module to create GLEW::GLEW and GLEWMX
  as aliases to glew/glewmx or glew_s/glewmx_s

The script ./cmake-testbuild.sh is added to test the
CMake build and config-module. See instructions there.
2015-06-22 14:06:50 +02:00

89 lines
3.1 KiB
CMake

#.rst:
# CopyImportedTargetProperties
# --------------------------
#
# Copies the `INTERFACE*` and `IMPORTED*` properties from a target
# to another one.
# This function can be used to duplicate an `IMPORTED` or an `ALIAS` library
# with a different name since ``add_library(... ALIAS ...)`` does not work
# for those targets.
#
# ::
#
# copy_imported_target_properties(<source-target> <destination-target>)
#
# The function copies all the `INTERFACE*` and `IMPORTED*` target
# properties from `<source-target>` to `<destination-target>`.
#
# The function uses the `IMPORTED_CONFIGURATIONS` property to determine
# which configuration-dependent properties should be copied
# (`IMPORTED_LOCATION_<CONFIG>`, etc...)
#
# Example:
#
# Internally the CMake project of ZLIB builds the ``zlib`` and
# ``zlibstatic`` targets which can be exported in the ``ZLIB::`` namespace
# with the ``install(EXPORT ...)`` command.
#
# The config-module will then create the import libraries ``ZLIB::zlib`` and
# ``ZLIB::zlibstatic``. To use ``ZLIB::zlibstatic`` under the standard
# ``ZLIB::ZLIB`` name we need to create the ``ZLIB::ZLIB`` imported library
# and copy the appropriate properties:
#
# add_library(ZLIB::ZLIB STATIC IMPORTED)
# copy_imported_target_properties(ZLIB::zlibstatic ZLIB::ZLIB)
#
function(copy_imported_target_properties src_target dest_target)
set(config_dependent_props
IMPORTED_IMPLIB
IMPORTED_LINK_DEPENDENT_LIBRARIES
IMPORTED_LINK_INTERFACE_LANGUAGES
IMPORTED_LINK_INTERFACE_LIBRARIES
IMPORTED_LINK_INTERFACE_MULTIPLICITY
IMPORTED_LOCATION
IMPORTED_NO_SONAME
IMPORTED_SONAME
)
# copy configuration-independent properties
foreach(prop
${config_dependent_props}
IMPORTED_CONFIGURATIONS
INTERFACE_AUTOUIC_OPTIONS
INTERFACE_COMPILE_DEFINITIONS
INTERFACE_COMPILE_FEATURES
INTERFACE_COMPILE_OPTIONS
INTERFACE_INCLUDE_DIRECTORIES
INTERFACE_LINK_LIBRARIES
INTERFACE_POSITION_INDEPENDENT_CODE
INTERFACE_SOURCES
INTERFACE_SYSTEM_INCLUDE_DIRECTORIES
)
get_property(is_set TARGET ${src_target} PROPERTY ${prop} SET)
if(is_set)
get_target_property(v ${src_target} ${prop})
set_target_properties(${dest_target} PROPERTIES ${prop} "${v}")
# message(STATUS "set_target_properties(${dest_target} PROPERTIES ${prop} ${v})")
endif()
endforeach()
# copy configuration-dependent properties
get_target_property(imported_configs ${src_target}
IMPORTED_CONFIGURATIONS)
foreach(config ${imported_configs})
foreach(prop_prefix ${config_dependent_props})
set(prop ${prop_prefix}_${config})
get_property(is_set TARGET ${src_target} PROPERTY ${prop} SET)
if(is_set)
get_target_property(v ${src_target} ${prop})
set_target_properties(${dest_target}
PROPERTIES ${prop} "${v}")
# message(STATUS "set_target_properties(${dest_target} PROPERTIES ${prop} ${v})")
endif()
endforeach()
endforeach()
endfunction()