Fixes an old issue on Linux where the program couldn't be run from a symbolic to the executable.
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@743 416bcca6-2ee7-4201-b75f-2eb2f807beb1
Also, there is a realpath implementation there wich may be useful for BeOS too
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@421 416bcca6-2ee7-4201-b75f-2eb2f807beb1