bash-3.2$ ghc-pkg check
Warning: haddock-interfaces: /opt/local/share/doc/base64-bytestring-1.0.0.1/html/base64-bytestring.haddock doesn't exist or isn't a file
Warning: haddock-html: /opt/local/share/doc/base64-bytestring-1.0.0.1/html doesn't exist or isn't a directory
Warning: haddock-interfaces: /opt/local/share/doc/blaze-builder-0.3.1.1/html/blaze-builder.haddock doesn't exist or isn't a file
Warning: haddock-html: /opt/local/share/doc/blaze-builder-0.3.1.1/html doesn't exist or isn't a directory
Warning: haddock-interfaces: /opt/local/share/doc/blaze-html-0.6.1.1/html/blaze-html.haddock doesn't exist or isn't a file
Warning: haddock-html: /opt/local/share/doc/blaze-html-0.6.1.1/html doesn't exist or isn't a directory
Warning: haddock-interfaces: /opt/local/share/doc/blaze-markup-0.5.1.5/html/blaze-markup.haddock doesn't exist or isn't a file
Warning: haddock-html: /opt/local/share/doc/blaze-markup-0.5.1.5/html doesn't exist or isn't a directory
Warning: haddock-interfaces: /opt/local/share/doc/data-default-class-0.0.1/html/data-default-class.haddock doesn't exist or isn't a file
Warning: haddock-html: /opt/local/share/doc/data-default-class-0.0.1/html doesn't exist or isn't a directory
Warning: haddock-interfaces: /opt/local/share/doc/data-default-instances-base-0.0.1/html/data-default-instances-base.haddock doesn't exist or isn't a file
Warning: haddock-html: /opt/local/share/doc/data-default-instances-base-0.0.1/html doesn't exist or isn't a directory
Warning: haddock-interfaces: /opt/local/share/doc/data-default-instances-dlist-0.0.1/html/data-default-instances-dlist.haddock doesn't exist or isn't a file
Warning: haddock-html: /opt/local/share/doc/data-default-instances-dlist-0.0.1/html doesn't exist or isn't a directory
Warning: haddock-interfaces: /opt/local/share/doc/data-default-instances-old-locale-0.0.1/html/data-default-instances-old-locale.haddock doesn't exist or isn't a file
Warning: haddock-html: /opt/local/share/doc/data-default-instances-old-locale-0.0.1/html doesn't exist or isn't a directory
Warning: haddock-interfaces: /opt/local/share/doc/digest-0.0.1.2/html/digest.haddock doesn't exist or isn't a file
Warning: haddock-html: /opt/local/share/doc/digest-0.0.1.2/html doesn't exist or isn't a directory
Warning: haddock-interfaces: /opt/local/share/doc/dlist-0.5/html/dlist.haddock doesn't exist or isn't a file
Warning: haddock-html: /opt/local/share/doc/dlist-0.5/html doesn't exist or isn't a directory
Warning: haddock-interfaces: /opt/local/share/doc/extensible-exceptions-0.1.1.4/html/extensible-exceptions.haddock doesn't exist or isn't a file
Warning: haddock-html: /opt/local/share/doc/extensible-exceptions-0.1.1.4/html doesn't exist or isn't a directory
Warning: haddock-interfaces: /opt/local/share/doc/hs-bibutils-5.0/html/hs-bibutils.haddock doesn't exist or isn't a file
Warning: haddock-html: /opt/local/share/doc/hs-bibutils-5.0/html doesn't exist or isn't a directory
Warning: haddock-interfaces: /opt/local/share/doc/mtl-2.1.2/html/mtl.haddock doesn't exist or isn't a file
Warning: haddock-html: /opt/local/share/doc/mtl-2.1.2/html doesn't exist or isn't a directory
Warning: haddock-interfaces: /opt/local/share/doc/parsec-3.1.3/html/parsec.haddock doesn't exist or isn't a file
Warning: haddock-html: /opt/local/share/doc/parsec-3.1.3/html doesn't exist or isn't a directory
Warning: haddock-interfaces: /opt/local/share/doc/pcre-light-0.4/html/pcre-light.haddock doesn't exist or isn't a file
Warning: haddock-html: /opt/local/share/doc/pcre-light-0.4/html doesn't exist or isn't a directory
Warning: haddock-interfaces: /opt/local/share/doc/syb-0.4.0/html/syb.haddock doesn't exist or isn't a file
Warning: haddock-html: /opt/local/share/doc/syb-0.4.0/html doesn't exist or isn't a directory
Warning: haddock-interfaces: /opt/local/share/doc/text-0.11.3.1/html/text.haddock doesn't exist or isn't a file
Warning: haddock-html: /opt/local/share/doc/text-0.11.3.1/html doesn't exist or isn't a directory
Warning: haddock-interfaces: /opt/local/share/doc/transformers-0.3.0.0/html/transformers.haddock doesn't exist or isn't a file
Warning: haddock-html: /opt/local/share/doc/transformers-0.3.0.0/html doesn't exist or isn't a directory
Warning: haddock-interfaces: /opt/local/share/doc/utf8-string-0.3.7/html/utf8-string.haddock doesn't exist or isn't a file
Warning: haddock-html: /opt/local/share/doc/utf8-string-0.3.7/html doesn't exist or isn't a directory
Warning: haddock-interfaces: /opt/local/share/doc/xml-1.3.13/html/xml.haddock doesn't exist or isn't a file
Warning: haddock-html: /opt/local/share/doc/xml-1.3.13/html doesn't exist or isn't a directory
Warning: haddock-interfaces: /opt/local/share/doc/zlib-0.5.4.1/html/zlib.haddock doesn't exist or isn't a file
Warning: haddock-html: /opt/local/share/doc/zlib-0.5.4.1/html doesn't exist or isn't a directory