GHCi and Cairo on Windows
In effort to keep my work cross-platform, I am trying to get GHCi and Cairo working together nicely on Windows (as a back-end to Diagrams, if it matters.) When loading the library in GHCi I get the following error: Loading package cairo-0.12.2 ... linking ... ghc: unable to load package `cairo-0.12.2' I am able to build, link, and execute successfully using 'ghc --make' so I know the libraries are installed correctly. I'm using GHC as packaged in the most recent version of the Haskell Platform and the most recent all-in-one Windows bundle of GTK. I've seen quite similar errors reported months ago with no apparent solution. Any help would be appreciated! --Karl
On Windows, it is necessary to add to your PATH variable the bin directory where the gtk+ DLL lives. Note, this is the C DLL, not the Haskell one produced by gtk2hs. For instance, on my machine the relevant directory is C:\workspace\ext\gtk+-2.20\bin. It is quite likely different on yours. On 5/12/2011, at 8:23, smeltzek@eecs.oregonstate.edu wrote:
In effort to keep my work cross-platform, I am trying to get GHCi and Cairo working together nicely on Windows (as a back-end to Diagrams, if it matters.) When loading the library in GHCi I get the following error:
Loading package cairo-0.12.2 ... linking ... ghc: unable to load package `cairo-0.12.2'
I am able to build, link, and execute successfully using 'ghc --make' so I know the libraries are installed correctly. I'm using GHC as packaged in the most recent version of the Haskell Platform and the most recent all-in-one Windows bundle of GTK.
I've seen quite similar errors reported months ago with no apparent solution.
Any help would be appreciated!
--Karl
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Thanks, but I don't believe this is my problem. The directory into which
I've installed the GTK library is indeed on my path and is found without
having to specify it when I compile with GHC. It's just the interpreter
that seems to be failing.
On Mon, Dec 5, 2011 at 1:32 PM, Malcolm Wallace
On Windows, it is necessary to add to your PATH variable the bin directory where the gtk+ DLL lives. Note, this is the C DLL, not the Haskell one produced by gtk2hs. For instance, on my machine the relevant directory is C:\workspace\ext\gtk+-2.20\bin. It is quite likely different on yours.
On 5/12/2011, at 8:23, smeltzek@eecs.oregonstate.edu wrote:
In effort to keep my work cross-platform, I am trying to get GHCi and Cairo working together nicely on Windows (as a back-end to Diagrams, if it matters.) When loading the library in GHCi I get the following error:
Loading package cairo-0.12.2 ... linking ... ghc: unable to load package `cairo-0.12.2'
I am able to build, link, and execute successfully using 'ghc --make' so I know the libraries are installed correctly. I'm using GHC as packaged in the most recent version of the Haskell Platform and the most recent all-in-one Windows bundle of GTK.
I've seen quite similar errors reported months ago with no apparent solution.
Any help would be appreciated!
--Karl
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participants (3)
-
Karl Smeltzer -
Malcolm Wallace -
smeltzek＠eecs.oregonstate.edu