set(SPMEDIAKEY-SOURCES SPMediaKeyTap.m SPInvocationGrabbing/NSObject+SPInvocationGrabbing.m ) set(SPMEDIAKEY-HEADERS SPMediaKeyTap.h SPInvocationGrabbing/NSObject+SPInvocationGrabbing.h ) SET_SOURCE_FILES_PROPERTIES( ${SPMEDIAKEY-SOURCES} PROPERTIES LANGUAGE C ) ADD_LIBRARY(SPMediaKeyTap STATIC ${SPMEDIAKEY-SOURCES} )