id,summary,reporter,owner,description,type,status,priority,milestone,component,version,resolution,keywords,cc
1211,"cairo demo in ghci throws ""unknown symbol"" error",guest,paolo,"I successully installed `gtk2hs-0.12.0`, but when trying to run the demo app (`cairo` package) `Drawing.hs`, I get

{{{
Prelude> :load Drawing.hs
[1 of 1] Compiling Main             ( Drawing.hs, interpreted )
Ok, modules loaded: Main.
*Main> main
Loading package transformers-0.2.2.0 ... linking ... done.
Loading package mtl-2.0.1.0 ... linking ... done.
Loading package array-0.3.0.2 ... linking ... done.
Loading package containers-0.4.0.0 ... linking ... done.
Loading package bytestring-0.9.1.10 ... linking ... done.
Loading package Win32-2.2.0.1 ... linking ... done.
Loading package filepath-1.2.0.0 ... linking ... done.
Loading package old-locale-1.0.0.2 ... linking ... done.
Loading package old-time-1.0.0.6 ... linking ... done.
Loading package directory-1.1.0.0 ... linking ... done.
Loading package process-1.0.1.5 ... linking ... done.
Loading package time-1.2.0.3 ... linking ... done.
Loading package random-1.0.0.3 ... linking ... done.
Loading package haskell98-1.1.0.1 ... linking ... done.
Loading package cairo-0.12.0 ... linking ... <interactive>: C:\Users\daniel\AppD
ata\Roaming\cabal\cairo-0.12.0\ghc-7.0.2\HScairo-0.12.0.o: unknown symbol `_cair
o_image_surface_get_data'
ghc.exe: unable to load package `cairo-0.12.0'
*Main>
}}}

Compiling with `ghc --make Drawing.hs -o main` runs OK

But when I try to build i. e. the `Chart` package it fails with the above error.
",defect,new,blocker,,Cairo bindings,,,"unknown symbol, cairo_image_surface_get_data",d.kahlenberg@…