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020976d637
Add LINK_LIBRARIES test to demonstrate static linking of transitive dependencies. Add STATIC_TARGET argument to pkg_check_modules() and pkg_search_module(). Influences the properties of target produced by IMPORTED_TARGET. When enabled: target's properties will be populated from <XXX>_STATIC_* variables instead of from <XXX>_* variables. Update existing tests concerning properties of targets produced via IMPORTED_TARGET, to test STATIC_TARGET variant too. Update existing tests concerning <XXX>_* variables to test <XXX>_STATIC_* variables too. Breaking changes to pkg_check_modules() and pkg_search_module(): - Variables CMAKE_FIND_LIBRARY_PREFIXES and CMAKE_FIND_LIBRARY_SUFFIXES can no longer be used to influence library lookup (i.e. the internal call to find_library()), because FindPkgConfig now internally relies on these variables to differentiate between shared and static library lookup. Prefer CMAKE_SHARED_LIBRARY_PREFIX + CMAKE_SHARED_LIBRARY_SUFFIX, or CMAKE_STATIC_LIBRARY_PREFIX + CMAKE_STATIC_LIBRARY_SUFFIX, depending on whether you wish to impact static or shared lookup. - <XXX>_LINK_LIBRARIES will now be populated only with libraries located via CMAKE_SHARED_LIBRARY_PREFIX + CMAKE_SHARED_LIBRARY_SUFFIX match - <XXX>_STATIC_LIBRARIES now processes -framework options - <XXX>_STATIC_LDFLAGS_OTHER now processes -framework options - <XXX>_STATIC_CFLAGS_OTHER now processes -isystem options - <XXX>_STATIC_INCLUDE_DIRS now processes -isystem options Fixes: #21714