The Makefile needs an update for the new DOCS directory structure. The path to the manpage has to be adjusted in line 263. - $(INSTALL) -c -m 644 DOCS/mplayer.1 $(MANDIR)/man1/mplayer.1 + $(INSTALL) -c -m 644 DOCS/en/mplayer.1 $(MANDIR)/man1/mplayer.1 Or something like that.