.I cc \-pthread
to link against the real-time library,
.IR librt .
-.SS Accessing named semaphores via the file system
-On Linux, named semaphores are created in a virtual file system,
+.SS Accessing named semaphores via the filesystem
+On Linux, named semaphores are created in a virtual filesystem,
normally mounted under
.IR /dev/shm ,
with names of the form