[wxhaskell-users] Problem linking WxHaskell sample program

[Volker W. <po...@vo...>]

Hello.

I've compiled and installed WxHaskell-0.8 from source, but when I try to
compile one of the examples, I get:

> ghc -package wx -o helloworld HelloWorld.hs
...
/usr/lib/libwxc-gtk2.4.2-0.8.so: undefined reference to `wxGLCanvas::SwapBuffers()'
/usr/lib/libwxc-gtk2.4.2-0.8.so: undefined reference to `wxGLCanvas::SetColour(char const*)'
/usr/lib/libwxc-gtk2.4.2-0.8.so: undefined reference to `wxGLCanvas::wxGLCanvas[in-charge](wxWindow*, wxGLCanvas const*, int, wxPoint const&, wxSize const&, long, wxString const&, int*, wxPalette const&)'
/usr/lib/libwxc-gtk2.4.2-0.8.so: undefined reference to `wxGLCanvas::SetCurrent()'
/usr/lib/libwxc-gtk2.4.2-0.8.so: undefined reference to `wxGLCanvas::wxGLCanvas[in-charge](wxWindow*, int, wxPoint const&, wxSize const&, long, wxString const&, int*, wxPalette const&)'
collect2: ld returned 1 exit status

When calling "readelf /usr/lib/libwxc-gtk2.4.2-0.8.so", the undefined
symbols seem to be present in the library.

I've also tried it with the prepackaged RPM, and am able to compile the
program, but when I start it, I get:

./helloworld: relocation error: /usr/lib/libwxc-gtk2.4.2-0.8.so: undefined symbol: _ZN10wxGLCanvasC1EP8wxWindowiRK7wxPointRK6wxSizelRK8wxStringPiRK9wxPalette

I'm using Debian, and the standard Debian packages of WxWidgets. I had
installed the RPM with alien.

Any idea what's wrong?

Thanks,
Volker

--
Volker Wysk <po...@vo...>
http://www.volker-wysk.de