add_header_library( mutex_common HDRS mutex_common.h ) add_header_library( thread_attrib HDRS thread_attrib.h ) if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/${LIBC_TARGET_OS}) add_subdirectory(${LIBC_TARGET_OS}) endif() if(TARGET libc.src.__support.threads.${LIBC_TARGET_OS}.mutex) add_header_library( mutex HDRS mutex.h DEPENDS .${LIBC_TARGET_OS}.mutex ) endif() if(TARGET libc.src.__support.threads.${LIBC_TARGET_OS}.thread) add_header_library( thread HDRS thread.h DEPENDS .${LIBC_TARGET_OS}.thread ) endif()