ilibexecdir = $$topdir
idatadir = $$topdir
idocdir = $$topdir/doc/libraries/$$pkgid
-ihtmldir = $$topdir/doc/libraries/$$pkgid
+ihtmldir = $$httptopdir/doc/libraries/$$pkgid
html_installed_root = $(prefix)/doc/libraries
else
# On non-Windows we can just give absolute paths all the time, and