Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: regex-genex (user goal)
rejecting: regex-genex-0.7.0, regex-genex-0.6.2, regex-genex-0.6.1,
regex-genex-0.6.0, regex-genex-0.5.1, regex-genex-0.5.0, regex-genex-0.3.2,
regex-genex-0.3.1, regex-genex-0.3.0, regex-genex-0.2.1, regex-genex-0.2.0,
regex-genex-0.1.20110525, regex-genex-0.1.20110524 (constraint from user
target requires ==0.1.20110523)
trying: regex-genex-0.1.20110523
trying: base-4.9.0.0/installed-4.9... (dependency of regex-genex-0.1.20110523)
trying: process-1.4.2.0/installed-1.4... (dependency of sbv-5.13)
next goal: haskell98 (dependency of regex-genex-0.1.20110523)
rejecting: haskell98-2.0.0.3 (conflict: base==4.9.0.0/installed-4.9...,
haskell98 => base>=4.7 && <4.8)
rejecting: haskell98-2.0.0.2 (conflict: base==4.9.0.0/installed-4.9...,
haskell98 => base==4.6.*)
rejecting: haskell98-2.0.0.1, haskell98-2.0.0.0 (conflict: process =>
directory==1.2.6.2/installed-1.2..., haskell98 => directory>=1.1 && <1.2)
rejecting: haskell98-1.1.0.1, haskell98-1.1.0.0, haskell98-1.0.1.1 (conflict:
base==4.9.0.0/installed-4.9..., haskell98 => base>=3 && <4.6)
rejecting: haskell98-1.0.1.0 (conflict: base==4.9.0.0/installed-4.9...,
haskell98 => base<4.6)
rejecting: haskell98-1.0 (conflict: base==4.9.0.0/installed-4.9..., haskell98
=> base<4.3)
Backjump limit reached (currently 2000, change with --max-backjumps or try to
run with --reorder-goals).