Hi Philip, thank you!
> Unfortunately, building raaz still fails (first because of the description, > then because some internal libraries are added as external dependencies, and > then for... other reasons I haven't figured out. But all of those are > separate issues. You’re right, it fails with this error for me, which indicates haskell-build-system has a bug _somewhere_. ---snip--- starting phase `register' running "runhaskell Setup.hs" with command "register" and parameters ("--gen-pkg-config=/gnu/store/8m0w1688syvcmhjr2ym1max430jmwjag-ghc-raaz-0.3.6/ghc-raaz-0.3.6.conf") error: in phase 'register': uncaught exception: system-error "fport_read" "~A" ("Is a directory") (21) phase `register' failed after 6.9 seconds Backtrace: 11 (primitive-load "/gnu/store/jpf2lwn33nq08nkqrkr5q232c51…") In guix/build/gnu-build-system.scm: 906:2 10 (gnu-build #:source _ #:outputs _ #:inputs _ #:phases . #) In ice-9/boot-9.scm: 1752:10 9 (with-exception-handler _ _ #:unwind? _ # _) In srfi/srfi-1.scm: 634:9 8 (for-each #<procedure 7ffff2048e20 at guix/build/gnu-b…> …) In ice-9/boot-9.scm: 1752:10 7 (with-exception-handler _ _ #:unwind? _ # _) In guix/build/gnu-build-system.scm: 927:23 6 (_) In guix/build/haskell-build-system.scm: 244:23 5 (register #:name _ #:system _ #:inputs _ #:outputs _) In ice-9/ports.scm: 433:17 4 (call-with-input-file _ _ #:binary _ #:encoding _ # _) In ice-9/rdelim.scm: 160:18 3 (read-string _) In unknown file: 2 (read-char #<input: /gnu/store/8m0w1688syvcmhjr2ym1max4…>) In ice-9/boot-9.scm: 1685:16 1 (raise-exception _ #:continuable? _) 1685:16 0 (raise-exception _ #:continuable? _) ice-9/boot-9.scm:1685:16: In procedure raise-exception: In procedure fport_read: Is a directory ---snap--- Cheers, Lars