Currently subversion does not respect LDFLAGS set by user. A quick way to let it support them is to add a line export EXTRA_LDFLAGS="${LDFLAGS}" right after econf and before emake, so that makefiles will see them and load them correctly. HTH, Diego
I've just changed the 1.3.0 ebuild to respect the LDFLAGS.
Closing then, I think last ~arch is enough of a fix :)