Hi all, I'm trying to compile Haskell's webkit package, but I'm getting this error: $ cabal install webkit Resolving dependencies... [1 of 2] Compiling SetupWrapper ( /tmp/webkit-0.12.3-9205/webkit-0.12.3/SetupWrapper.hs, /tmp/webkit-0.12.3-9205/webkit-0.12.3/dist/setup/SetupWrapper.o ) [2 of 2] Compiling Main ( /tmp/webkit-0.12.3-9205/webkit-0.12.3/Setup.hs, /tmp/webkit-0.12.3-9205/webkit-0.12.3/dist/setup/Main.o ) Linking /tmp/webkit-0.12.3-9205/webkit-0.12.3/dist/setup/setup ... [1 of 2] Compiling Gtk2HsSetup ( Gtk2HsSetup.hs, dist/setup-wrapper/Gtk2HsSetup.o ) [2 of 2] Compiling Main ( SetupMain.hs, dist/setup-wrapper/Main.o ) Linking dist/setup-wrapper/setup ... Configuring webkit-0.12.3... Building webkit-0.12.3... Preprocessing library webkit-0.12.3... dist/build/Graphics/UI/Gtk/WebKit/Types.h:1:22: fatal error: hswebkit.h: No such file or directory compilation terminated. gtk2hsC2hs: Error during preprocessing custom header file cabal: Error: some packages failed to install: webkit-0.12.3 failed during the building phase. The exception was: ExitFailure 1 I'm compiling it inside a hsenv, with this ghc: $ ghc -v Glasgow Haskell Compiler, Version 7.4.1, stage 2 booted by GHC version 7.4.1 Using binary package database: /tmp/webkit/.hsenv/ghc_pkg_db/package.cache wired-in package ghc-prim mapped to ghc-prim-0.2.0.0-c2ff696e5b8ec4d4b2bc2e42085fe471 wired-in package integer-gmp mapped to integer-gmp-0.4.0.0-3cccac07aef8e27023f605c1f45bdf74 wired-in package base mapped to base-4.5.0.0-40b99d05fae6a4eea95ea69e6e0c9702 wired-in package rts mapped to builtin_rts wired-in package template-haskell mapped to template-haskell-2.7.0.0-8c8cd20e21666657195efabced685fe1 wired-in package dph-seq not found. wired-in package dph-par not found. Hsc static flags: -static Any ideas? Thanks, L.