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9b3735c05f
The "main" component is not available everywhere, but passing it to the
find_package(SFML) call via the OPTIONAL_COMPONENTS still fails the call
on platforms like Linux.
This commit enables SFML to be used the same in a cross-platform fashion
without forcing consumers to put custom logic around importing SFML.
Example that works with this commit, but break before:
find_package(SFML REQUIRED graphics OPTIONAL_COMPONENTS main)
target_link_libraries(dummy PRIVATE SFML::graphics)
if(SFML_MAIN_FOUND)
target_link_libraries(dummy PRIVATE SFML::main)
endif()
160 lines
7.0 KiB
CMake
160 lines
7.0 KiB
CMake
# This script provides the SFML libraries as imported targets
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# ------------------------------------
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#
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# Usage
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# -----
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#
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# When you try to locate the SFML libraries, you must specify which modules you want to use (System, Window, Graphics, Network, Audio, Main).
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# If none is given, no imported target will be created and you won't be able to link to SFML libraries.
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# example:
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# find_package(SFML COMPONENTS Graphics Window System) # find the graphics, window and system modules
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#
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# You can enforce a specific version, either MAJOR.MINOR or only MAJOR.
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# If nothing is specified, the version won't be checked (i.e. any version will be accepted).
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# example:
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# find_package(SFML COMPONENTS ...) # no specific version required
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# find_package(SFML 3 COMPONENTS ...) # any 3.x version
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# find_package(SFML 2.4 COMPONENTS ...) # version 2.4 or greater with the same major version
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#
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# By default, the dynamic libraries of SFML will be found. To find the static ones instead,
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# you must set the SFML_STATIC_LIBRARIES variable to TRUE before calling find_package(SFML ...).
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# You don't need to deal with SFML's dependencies when linking your targets against SFML libraries,
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# they will all be configured automatically, even if you use SFML static libraries.
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# example:
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# set(SFML_STATIC_LIBRARIES TRUE)
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# find_package(SFML 3 COMPONENTS Network System)
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#
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# When searching for SFML with find_package(), keep in mind that it will also find versions which are
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# in development (i.e. between two released versions), if you have them in your search path.
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# If you want to make sure that a found SFML package corresponds to an official release, check the
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# bool output variable SFML_VERSION_IS_RELEASE, which is true for official releases and false for development versions.
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#
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# If you want to use the latest features before a new SFML version is released, make sure to look for
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# the upcoming version number. For example, if you want to use latest SFML 3 features before 3.0.0 is officially released,
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# look for version 3 with find_package().
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#
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# On macOS by default CMake will search for frameworks. If you want to use static libraries and have installed
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# both SFML frameworks and SFML static libraries, your must set CMAKE_FIND_FRAMEWORK to "NEVER" or "LAST"
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# in addition to setting SFML_STATIC_LIBRARIES to TRUE. Otherwise CMake will check the frameworks bundle config and
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# fail after finding out that it does not provide static libraries. Please refer to CMake documentation for more details.
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#
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# Additionally, keep in mind that SFML frameworks are only available as release libraries unlike dylibs which
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# are available for both release and debug modes.
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#
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# If SFML is not installed in a standard path, you can use the SFML_DIR CMake variable
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# to tell CMake where SFML's config file is located (PREFIX/lib/cmake/SFML for a library-based installation,
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# and PREFIX/SFML.framework/Resources/CMake on macOS for a framework-based installation).
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#
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# Output
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# ------
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#
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# This script defines the following variables:
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# - For each specified module XXX (System, Window, Graphics, Network, Audio, Main):
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# - SFML_XXX_FOUND: true if either the debug or release library of the xxx module is found
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# - SFML_FOUND: true if all the required modules are found
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#
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# And the following targets:
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# - For each specified module XXX (System, Window, Graphics, Network, Audio, Main):
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# - SFML::XXX
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# The SFML targets are the same for both Debug and Release build configurations and will automatically provide
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# correct settings based on your currently active build configuration. The SFML targets name also do not change
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# when using dynamic or static SFML libraries.
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#
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# When linking against a SFML target, you do not need to specify indirect dependencies. For example, linking
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# against SFML::Graphics will also automatically link against SFML::Window and SFML::System.
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#
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# example:
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# find_package(SFML 3 COMPONENTS Graphics Audio REQUIRED)
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# add_executable(myapp ...)
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# target_link_libraries(myapp PRIVATE SFML::Graphics SFML::Audio)
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if (NOT SFML_FIND_COMPONENTS)
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message(FATAL_ERROR "find_package(SFML) called with no component")
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endif()
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set(FIND_SFML_PATHS
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"${CMAKE_CURRENT_LIST_DIR}/../.."
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${SFML_ROOT}
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$ENV{SFML_ROOT}
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~/Library/Frameworks
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/Library/Frameworks
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/usr/local
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/usr
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/sw
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/opt/local
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/opt/csw
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/opt)
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find_path(SFML_DOC_DIR SFML.tag
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PATH_SUFFIXES SFML/doc share/doc/SFML
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PATHS ${FIND_SFML_PATHS})
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# Update requested components (eg. request window component if graphics component was requested)
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set(FIND_SFML_SYSTEM_DEPENDENCIES "")
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set(FIND_SFML_MAIN_DEPENDENCIES "")
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set(FIND_SFML_AUDIO_DEPENDENCIES System)
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set(FIND_SFML_NETWORK_DEPENDENCIES System)
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set(FIND_SFML_WINDOW_DEPENDENCIES System)
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set(FIND_SFML_GRAPHICS_DEPENDENCIES Window System)
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set(FIND_SFML_ADDITIONAL_COMPONENTS "")
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foreach(component ${SFML_FIND_COMPONENTS})
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string(TOUPPER "${component}" UPPER_COMPONENT)
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list(APPEND FIND_SFML_ADDITIONAL_COMPONENTS ${FIND_SFML_${UPPER_COMPONENT}_DEPENDENCIES})
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endforeach()
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list(APPEND SFML_FIND_COMPONENTS ${FIND_SFML_ADDITIONAL_COMPONENTS})
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list(REMOVE_DUPLICATES SFML_FIND_COMPONENTS)
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# Choose which target definitions must be imported
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if (SFML_STATIC_LIBRARIES)
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set(SFML_IS_FRAMEWORK_INSTALL "@SFML_BUILD_FRAMEWORKS@")
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if (SFML_IS_FRAMEWORK_INSTALL)
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message(WARNING "Static frameworks are not supported by SFML. Clear SFML_DIR cache entry, \
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and either change SFML_STATIC_LIBRARIES or CMAKE_FIND_FRAMEWORK before calling find_package(SFML)")
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endif()
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set(config_name "Static")
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else()
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set(config_name "Shared")
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endif()
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set(targets_config_file "${CMAKE_CURRENT_LIST_DIR}/SFML${config_name}Targets.cmake")
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# Generate imported targets for SFML and its dependencies
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if (EXISTS "${targets_config_file}")
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# Set SFML_FOUND to TRUE by default, may be overwritten by one of the includes below
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set(SFML_FOUND TRUE)
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include("${targets_config_file}")
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include("${CMAKE_CURRENT_LIST_DIR}/SFMLConfigDependencies.cmake")
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if (SFML_FOUND)
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set(SFML_VERSION_IS_RELEASE @VERSION_IS_RELEASE@)
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foreach (component ${SFML_FIND_COMPONENTS})
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string(TOUPPER "${component}" UPPER_COMPONENT)
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set(SFML_${UPPER_COMPONENT}_FOUND FALSE)
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if (TARGET SFML::${component})
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set(SFML_${UPPER_COMPONENT}_FOUND TRUE)
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elseif(SFML_FIND_REQUIRED_${component})
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set(FIND_SFML_ERROR "Found SFML but requested component '${component}' is missing in the config defined in ${SFML_DIR}.")
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set(SFML_FOUND FALSE)
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endif()
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endforeach()
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endif()
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else()
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set(FIND_SFML_ERROR "Requested SFML configuration (${config_name}) was not found")
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set(SFML_FOUND FALSE)
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endif()
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if (NOT SFML_FOUND)
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if(SFML_FIND_REQUIRED)
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# fatal error
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message(FATAL_ERROR "${FIND_SFML_ERROR}")
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elseif(NOT SFML_FIND_QUIETLY)
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# error but continue
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message(STATUS "${FIND_SFML_ERROR}")
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endif()
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endif()
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if (SFML_FOUND AND NOT SFML_FIND_QUIETLY)
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message(STATUS "Found SFML @PROJECT_VERSION@ in ${CMAKE_CURRENT_LIST_DIR}")
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endif()
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