cmake HAVE_PTHREAD_WORKQUEUE_PRIVATE_H examples

swiftlang/swift-corelibs-libdispatch CMakeLists.txt :147 

check_include_files(pthread/workqueue_private.h HAVE_PTHREAD_WORKQUEUE_PRIVATE_H)

swiftlang/swift-corelibs-libdispatch CMakeLists.txt :219 

check_include_files("pthread/workqueue_private.h" HAVE_PTHREAD_WORKQUEUE_PRIVATE_H)