I learned a little bit Haskell with Hugs on Windows and now I want to develop on Linux. I installed the Haskell Platform on Unbunto 10.10. There were no problems. Then I tried to install Leksah with sudo cabal install leksah --global It failed with: Resolving dependencies... /tmp/gtksourceview2-0.11.12661/gtksourceview2-0.11.1/Gtk2HsSetup.hs:25:0: warning: #warning Setup.hs is guessing the version of Cabal. If compilation of Setup.hs fails use -DCABAL_VERSION_MINOR=x for Cabal version 1.x.0 when building (prefixed by --ghc-option= when using the 'cabal' command) [1 of 2] Compiling Gtk2HsSetup ( /tmp/gtksourceview2-0.11.12661/gtksourceview2-0.11.1/Gtk2HsSetup.hs, /tmp/gtksourceview2-0.11.12661/gtksourceview2-0.11.1/dist/setup/Gtk2HsSetup.o ) [2 of 2] Compiling Main ( /tmp/gtksourceview2-0.11.12661/gtksourceview2-0.11.1/Setup.hs, /tmp/gtksourceview2-0.11.12661/gtksourceview2-0.11.1/dist/setup/Main.o ) Linking /tmp/gtksourceview2-0.11.12661/gtksourceview2-0.11.1/dist/setup/setup ... Configuring gtksourceview2-0.11.1... Preprocessing library gtksourceview2-0.11.1... Building gtksourceview2-0.11.1... [ 1 of 13] Compiling Graphics.UI.Gtk.SourceView.Signals ( dist/build/Graphics/UI/Gtk/SourceView/Signals.hs, dist/build/Graphics/UI/Gtk/SourceView/Signals.o ) Graphics/UI/Gtk/SourceView/Signals.chs:51:46: Module `System.Glib.UTFString' does not export `maybePeekUTFString' cabal: Error: some packages failed to install: gtksourceview2-0.11.1 failed during the building phase. The exception was: ExitFailure 1 leksah-0.8.0.8 depends on gtksourceview2-0.11.1 which failed to install. I searched the Internet on "gtksourceview2 maybePeekUTFString" and found a patch: http://www.mail-archive.com/gtk2hs-devel@lists.sourceforge.net/msg00971/gtk_... As a newby with the Haskell tools, I searched the Internet on how to install a patch. I found dpm and I tried to install it with: sudo cabal install dpm --global It failed with: configure: error: in `/tmp/terminfo-0.3.1.31936/terminfo-0.3.1.3': configure: error: curses headers could not be found, so this package cannot be built See `config.log' for more details. cabal: Error: some packages failed to install: DPM-0.2.1 depends on terminfo-0.3.1.3 which failed to install. darcs-2.5 depends on terminfo-0.3.1.3 which failed to install. haskeline-0.6.3.2 depends on terminfo-0.3.1.3 which failed to install. terminfo-0.3.1.3 failed during the configure step. The exception was: ExitFailure 1 So after installing Haskell Platform, I only found broken packages! What can I do to install Leksah?