Posix makefiles don't support spaces in dependency names. Not sure about gmake. Cmake doesn't support semicolons, because everything in cmake is a string, and

Posix makefiles don't support spaces in dependency names. Not sure about gmake. Cmake doesn't support semicolons, because everything in cmake is a string, and ; is the list item separator. PATH is separated by colons, so you can't add directories containing : to it.