bash-3.2$ ghc-pkg list
/Library/Frameworks/GHC.framework/Versions/610/usr/lib/ghc-6.10.1/./package.conf:
Cabal-1.6.0.1, HAppS-Data-0.9.3, HAppS-IxSet-0.9.3,
HAppS-Server-0.9.3.1, HAppS-State-0.9.3, HAppS-Util-0.9.3,
HSH-1.2.6, HStringTemplate-0.4.3, HStringTemplateHelpers-0.0.3,
HTTP-3001.1.3, HUnit-1.2.0.3, HaXml-1.13.3, MissingH-1.0.2.1,
QuickCheck-1.2.0.0, array-0.2.0.0, base-3.0.3.0, base-4.0.0.0,
binary-0.4.4, bytestring-0.9.1.4, cairo-0.9.13, containers-0.2.0.0,
directory-1.0.0.2, (dph-base-0.3), (dph-par-0.3),
(dph-prim-interface-0.3), (dph-prim-par-0.3), (dph-prim-seq-0.3),
(dph-seq-0.3), editline-0.2.1.0, filepath-1.1.0.1, gconf-0.9.13,
(ghc-6.10.1), ghc-prim-0.1.0.0, glade-0.9.13, glib-0.9.13,
gnomevfs-0.9.13, gtk-0.9.13, gtkglext-0.9.13, haddock-2.3.0,
haskell-src-1.0.1.3, haskell98-1.0.1.0, hpc-0.5.0.2,
hscolour-1.10.1, hslogger-1.0.6, hspread-0.3, html-1.0.1.2,
integer-0.1.0.0, mtl-1.1.0.2, network-2.2.0.1, old-locale-1.0.0.1,
old-time-1.0.0.1, packedstring-0.1.0.1, parallel-1.1.0.0,
parsec-2.1.0.1, pretty-1.0.1.0, process-1.0.1.0, pureMD5-0.2.4,
random-1.0.0.1, regex-base-0.72.0.2, regex-compat-0.71.0.1,
regex-posix-0.72.0.3, rts-1.0, safe-0.2, soegtk-0.9.13,
sourceview-0.9.13, stm-2.1.1.2, svgcairo-0.9.13, syb-0.1.0.0,
syb-with-class-0.4, template-haskell-2.3.0.0, terminfo-0.2.2.1,
time-1.1.2.2, unix-2.3.1.0, utf8-string-0.3.3, xhtml-3000.2.0.1,
zip-archive-0.1.1.1, zlib-0.4.0.4, zlib-0.5.0.0
bash-3.2$