Merge pull request #652 from wolfgangwalther/libpq

cabal2nix/FromCabal/Name: switch pq from postgresql to libpq

Author: maralorn

cabal2nix/src/Distribution/Nixpkgs/Haskell/FromCabal/Name.hs

@@ -162,7 +162,7 @@ libNixName "pcap"                               = return "libpcap"
 libNixName "pfs-1.2"                            = return "pfstools"
 libNixName "png"                                = return "libpng"
 libNixName "poppler-glib"                       = return "poppler_gi"
-libNixName "pq"                                 = return "postgresql"
+libNixName "pq"                                 = return "libpq"
 libNixName "pthread"                            = []
 libNixName "pulse"                              = return "libpulseaudio"
 libNixName "pulse-simple"                       = return "libpulseaudio"