This target is supposed to create the html files of the home page.
This broke one year ago when the build system was instructed to create
compressed man pages. Fortunately, the fix is trivial.
Fixes: f35b70fc3e8656f71437cc85062da31488acd781
# web
html := $(addprefix web/, $(addsuffix .html, \
- index lopsub-api lopsubgen.1 lopsubex.1 $(m4_man_pages)))
+ index lopsub-api lopsubgen.1 lopsubex.1 $(m4_man_pages:.gz=)))
$(html): $(addprefix web/, $(addsuffix .html, header footer))
www: $(html)