Dear Haskellers, I heard from a guy who was having problems with wxHaskell using GHC 6.10.x. I tried it myself and had the exact same problem occurring using GHC 6.12.x as well. I am using the debian unstable version of ghc6 package. kyagrd@kyagrd:~/tmp$ head bb.hs import Graphics.UI.WX import Graphics.UI.WXCore (bitmapGetSize) main = start viewer viewer :: IO () viewer = do bm <- bitmapCreateFromFile "~/sample.jpg" size <- bitmapGetSize bm f <- frame [text := "viewer", on paint := onPaint bm, clientSize :=size] kyagrd@kyagrd:~/tmp$ runghc bb.hs bb.hs: <command line>: can't load .so/.DLL for: stdc++ (libstdc++.so: cannot open shared object file: No such file or directory) kyagrd@kyagrd:~/tmp$ ghc bb.hs bb.o: In function `r43M_info': (.text+0x48): undefined reference to `wxzm0zi12zi1zi4_GraphicsziUIziWXziWindow_zdfDimensionsObject_closure' bb.o: In function `r43O_info': (.text+0xa8): undefined reference to `wxzm0zi12zi1zi4_GraphicsziUIziWXziWindow_zdfPaintObject_closure' ... The problem is there is no libstdc++.so in my Debian system as well as the guy who uses Ubunto. What exists is libstdc++.so.6. kyagrd@kyagrd:~/tmp$ ls /usr/lib/libstdc++.* /usr/lib/libstdc++.so.6@ /usr/lib/libstdc++.so.6.0.13 I wonder how wxHaskell was even able to successfully configure and compile at all. I didn't have wx package installed before, and I installed it just today and it successfully configured and compiled but unable to dynamically link to libstdc++.so. More serious problem is that wxHaskell doesn't work even making a symbolic link of libstdc++.so from libstdc++.so.6. I've also tried running ldconfig -v and ldconfig -p as a root, but still get the same problem. Is this a commom problem with the libraries linking to libstdc++.so or is this just the wxHaskell problem? Or, is this a ghc problem? -- Ahn, Ki Yung