The base version of clang 3.4.1 in FreeBSD 9.3 is missing
some patches that are present in clang 3.4.1 in FreeBSD 10.1.
One of these patches appears to fix a code generation bug
on i386 that is triggered when building graphics/inkscape.
Work around this issue by building inkscape with lang/clang34
from ports on FreeBSD 9.3 i386.