Builds with stack lts-9.0 resolver

[mhuesch]

I needed to do graph search recently and revisited this package. Turns out quite a bit has changed in the dependencies in 5 years! I made tweaks so it builds with stack's lts-9.0 resolver. I am not confidant that I didn't subtly break things, and I haven't had time to go through and check everything. But since I might never get around to it, I figured it's a starting point and would save someone else some work if they want to use the package with a more recent GHC.

Notes

• I may have unintentionally changed some behaviors in this commit. I
  added a few TODO comments to indicate this.
• There is annoying line noise in this commit because my editor strips
  whitespace and I didn't disable it until I had modified several files.

[miguelfdag]

Hi I have recently started working with Haskell to see how imperative languages compare to functional ones, in terms of performance. I found your answer, which would greatly help me, but I cannot get it running. Could you help me out, please?

[mhuesch]

Hi, what’s the output from stack build, when run from the project root?

[miguelfdag]

The error comes when trying to build hmatrix-gsl. It is as follows:

…

-- While building package hmatrix-gsl-0.18.0.1 using: ... ... Process exited with code: ExitFailure 1 Configuring hmatrix-gsl-0.18.0.1... Cabal-simple_mPHDZzAJ_1.24.2.0_ghc-8.0.2: The pkg-config package 'gsl' is required but it could not be found. I am not sure how to fix this, because the dependency hmatrix-gsl is under Build-Depends: in the cabal file. El vie., 9 nov. 2018 a las 19:52, Michael Hueschen (< [email protected]>) escribió:

Hi, what’s the output from stack build, when run from the project root? — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#5 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AcsuXGlyySzgXvxFQBH4iKGb_0H0tOYaks5utc7hgaJpZM4Ov_aY> .

[mhuesch]

Hi, it seems like you need to install gsl. Try one of the methods listed here.

[miguelfdag]

I have tried installing both gsl-bin and libgsl2, and the same error still pops up. I am working on an Ubuntu distribution, in case that helps. El sáb., 10 nov. 2018 a las 22:51, Michael Hueschen (< [email protected]>) escribió:

…

Hi, it seems like you need to install gsl. Try one of the methods listed here <http://www2.lawrence.edu/fast/GREGGJ/CMSC210/gsl/gsl.html>. — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#5 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AcsuXNW-sW4uGOzIvCnenF7DGlMwfVTnks5ut0pZgaJpZM4Ov_aY> .

[mhuesch]

Unfortunately, I don't have experience with hmatrix on Linux (I run Mac), but I found this issues. Perhaps you could try installing OS-specific packages, like indicated in one of the links (albeit their case is Windows)? Or possibly specifying the extra-include-dirs like they do: stack --extra-lib-dirs=D:/CS294/gsl-1.8-bin/bin build

[miguelfdag]

I've been downloading several packages, and it now seems to be working. Thank you a lot for your help.

…

On Sat, Nov 10, 2018, 23:34 Michael Hueschen ***@***.*** wrote: Unfortunately, I don't have experience with hmatrix on Linux (I run Mac), but I found this issues <haskell-numerics/hmatrix#226>. Perhaps you could try installing OS-specific packages, like indicated in one of the links (albeit their case is Windows)? Or possibly specifying the extra-include-dirs like they do: stack --extra-lib-dirs=D:/CS294/gsl-1.8-bin/bin build — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#5 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AcsuXNOitU4IBK68xsJXJ1Nn7qxkctH-ks5ut1R2gaJpZM4Ov_aY> .

[mhuesch]

Great! You're welcome - happy to help 🙂