The haddock library needs the ghc-paths library. so add it to RUN_DEPENDS-lib and bump (in addition to the bump on -main after the ghc update).
Index: Makefile =================================================================== RCS file: /cvs/ports/devel/haddock/Makefile,v retrieving revision 1.31 diff -u -p -r1.31 Makefile --- Makefile 23 Apr 2011 21:05:14 -0000 1.31 +++ Makefile 25 Jun 2011 21:04:24 -0000 @@ -5,7 +5,9 @@ COMMENT-lib = haddock library DISTNAME = haddock-2.9.2 PKGNAME-main = ${DISTNAME} +REVISION-main = 0 PKGNAME-lib = hs-${DISTNAME} +REVISION-lib = 0 CATEGORIES = devel HOMEPAGE = http://www.haskell.org/haddock/ @@ -42,6 +44,9 @@ BUILD_DEPENDS += devel/hs-ghc-paths \ textproc/docbook-xsl \ textproc/libxslt \ ${RUN_DEPENDS} + +RUN_DEPENDS-lib = ${RUN_DEPENDS} \ + devel/hs-ghc-paths USE_GMAKE = Yes CONFIGURE_STYLE = autoconf no-autoheader