Description:
The postinst scriptlet complains about a lot of nonexistent dependencies
It seems that most of these dependencies are not provided by community/extra/core

End result is, gtk2hs is not registered with ghc.

Additional info:
* package version(s)
local/gtk2hs 0.10.0-3
local/ghc 6.10.2-2

* config and/or log files etc.
sudo pacman -S gtk2hs
resolving dependencies...
looking for inter-conflicts...

Targets (1): gtk2hs-0.10.0-3

Total Download Size: 6.98 MB
Total Installed Size: 34.04 MB

Proceed with installation? [Y/n] y
:: Retrieving packages from community...
gtk2hs-0.10.0-3 7.0M 443.9K/s 00:00:16 [###########################################################] 100%
checking package integrity...
(1/1) checking for file conflicts [###########################################################] 100%
(1/1) installing gtk2hs [###########################################################] 100%
building GHCi library /usr/lib/gtk2hs/HSglib.o... done.
glib-0.10.0: dependency base-4.0.0.0 doesn't exist (use --force to override)
Reading package info from "/usr/lib/gtk2hs/glib.package.conf" ... done.
building GHCi library /usr/lib/gtk2hs/HScairo.o... done.
cairo-0.10.0: dependency base-4.0.0.0 doesn't exist (use --force to override)
cairo-0.10.0: dependency glib-0.10.0 doesn't exist (use --force to override)
Reading package info from "/usr/lib/gtk2hs/cairo.package.conf" ... done.
building GHCi library /usr/lib/gtk2hs/HSgtk.o... done.
gtk-0.10Reading package info from "/usr/lib/gtk2hs/gtk.package.conf" ... done.
.0: dependency base-4.0.0.0 doesn't exist (use --force to override)
gtk-0.10.0: dependency glib-0.10.0 doesn't exist (use --force to override)
gtk-0.10.0: dependency cairo-0.10.0 doesn't exist (use --force to override)
gtk-0.10.0: dependency containers-0.2.0.0 doesn't exist (use --force to override)
building GHCi library /usr/lib/gtk2hs/HSsoegtk.o... done.
soegtk-0.10.0: dependency base-4.0.0.0 doesn't exist Reading package info from "/usr/lib/gtk2hs/soegtk.package.conf" ... done.
(use --force to override)
soegtk-0.10.0: dependency gtk-0.10.0 doesn't exist (use --force to override)
soegtk-0.10.0: dependency cairo-0.10.0 doesn't exist (use --force to override)
soegtk-0.10.0: dependency old-time-1.0.0.1 doesn't exist (use --force to override)
building GHCi library /usr/lib/gtk2hs/HSglade.o... done.
Reading package info from "/usr/lib/gtk2hs/glade.package.conf" ... done.
glade-0.10.0: dependency base-4.0.0.0 doesn't exist (use --force to override)
glade-0.10.0: dependency gtk-0.10.0 doesn't exist (use --force to override)
building GHCi library /usr/lib/gtk2hs/HSgconf.o... done.
Reading package info from "/usr/lib/gtk2hs/gconf.package.conf" ... done.
gconf-0.10.0: dependency base-4.0.0.0 doesn't exist (use --force to override)
gconf-0.10.0: dependency glib-0.10.0 doesn't exist (use --force to override)
building GHCi library /usr/lib/gtk2hs/HSgtksourceview2.o... done.
Reading package info from "/usr/lib/gtk2hs/gtksourceview2.package.conf" ... done.
gtksourceview2-0.10.0: dependency base-4.0.0.0 doesn't exist (use --force to override)
gtksourceview2-0.10.0: dependency gtk-0.10.0 doesn't exist (use --force to override)
building GHCi library /usr/lib/gtk2hs/HSsvgcairo.o... done.
svgcairo-0.10.0: dependency base-4.0.0.0 doesn't exist (use --force to override)
svgcairo-0.10.0: dependency glib-0.10.0 doesn't exist (use --force to override)
svgcairo-0.10.0: dependency cairo-0.10.0 doesn't exist (use --force to override)
Reading package info from "/usr/lib/gtk2hs/svgcairo.package.conf" ... done.
building GHCi library /usr/lib/gtk2hs/HSgtkglext.o... done.
Reading package info from "/usr/lib/gtk2hs/gtkglext.package.conf" ... done.
gtkglext-0.10.0: dependency base-4.0.0.0 doesn't exist (use --force to override)
gtkglext-0.10.0: dependency gtk-0.10.0 doesn't exist (use --force to override)
error: scriptlet failed to execute correctly