OSX上のHaskell stackでMecabを扱う方法
本文章は以下に書いてあることを抽出して纏めた記事である.
問題点
自分のOSX環境では、なぜかHaskellからMecabを利用することができなかった
解決できたサンプルリポジトリ
git clone https://github.com/shouhei/mecab-sample-hs.git cd mecab-sample-hs stack build stack exec mecab-sample-hs-exe
以上を叩くと
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上記の様な出力になるはず
解決方法
stack.ymlを以下を追記する
packages:
- '.'
- location:
git: git@github.com:morishin/hsmecab.git
commit: 2da6677fbd42bb77d3b6e61c02edfeebe248e184
extra-include-dirs: - /usr/local/Cellar/mecab/0.996/include/
extra-lib-dirs: - /usr/local/Cellar/mecab/0.996/lib/
次にproject.cabalに以下を追記
library
hs-source-dirs: src
exposed-modules: Lib
build-depends: base >= 4.7 && < 5
, mecab
default-language: Haskell2010
でもって、 stack build すると問題なく使えるようになるはず
問題を時系列に追う
Could not parse '/path/to/mecab-sample/stack.yaml': AesonException "failed to parse field 'packages': failed to parse field 'location': when expecting a PackageLocation, encountered Null instead" See https://github.com/commercialhaskell/stack/wiki/stack.yaml.
tanakhさんの作ったmecabバインディングではダメらしい
- githubのforkを利用する
Enter passphrase for key '/Users/shouhei/.ssh/id_rsa':
Warning: File listed in mecab-sample.cabal file does not exist: README.md
mecab-0.4.0: configure
mecab-0.4.0: build
mecab-0.4.0: install
mecab-sample-0.1.0.0: configure
mecab-sample-0.1.0.0: build
Completed all
-- While building package mecab-sample-0.1.0.0 using:
/path/to/.stack/programs/x86_64-osx/ghc-7.10.2/bin/runhaskell -package=Cabal-1.22.4.0 -clear-package-db -global-package-db -package-db=/path/to/.stack/snapshots/x86_64-osx/lts-3.13/7.10.2/pkgdb/ /var/folders/lk/jk8fbl3s4
qgc7fzz7r3wxn300000gn/T/stack28485/Setup.hs --builddir=.stack-work/dist/x86_64-osx/Cabal-1.22.4.0/ build exe:mecab-sample-exe --ghc-options -hpcdir .stack-work/dist/x86_64-osx/Cabal-1.22.4.0/hpc/.hpc/ -ddump-hi -ddump-to-file
Process exited with code: ExitFailure 1
Logs have been written to: /path/to/mecab-sample/.stack-work/logs/mecab-sample-0.1.0.0.log
Configuring mecab-sample-0.1.0.0...
Preprocessing library mecab-sample-0.1.0.0...
[1 of 1] Compiling Lib ( src/Lib.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.4.0/build/Lib.o )
In-place registering mecab-sample-0.1.0.0...
Preprocessing executable 'mecab-sample-exe' for mecab-sample-0.1.0.0...
[1 of 1] Compiling Main ( app/Main.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.4.0/build/mecab-sample-exe/mecab-sample-exe-tmp/Main.o )
Linking .stack-work/dist/x86_64-osx/Cabal-1.22.4.0/build/mecab-sample-exe/mecab-sample-exe ...
Undefined symbols for architecture x86_64:
"_mecab_get_all_morphs", referenced from:
_cdn2_info in libHSmecab-0.4.0-0HRiBJmaGDO9FQQzxhViZD.a(MeCab.o)
"_mecab_get_partial", referenced from:
_cdly_info in libHSmecab-0.4.0-0HRiBJmaGDO9FQQzxhViZD.a(MeCab.o)
"_mecab_get_theta", referenced from:
_cdpg_info in libHSmecab-0.4.0-0HRiBJmaGDO9FQQzxhViZD.a(MeCab.o)
"_mecab_set_all_morphs", referenced from:
_cdSu_info in libHSmecab-0.4.0-0HRiBJmaGDO9FQQzxhViZD.a(MeCab.o)
"_mecab_set_partial", referenced from:
_cdWY_info in libHSmecab-0.4.0-0HRiBJmaGDO9FQQzxhViZD.a(MeCab.o)
"_mecab_set_theta", referenced from:
_cdVy_info in libHSmecab-0.4.0-0HRiBJmaGDO9FQQzxhViZD.a(MeCab.o)
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
2 action
ググったら
cabal installのときにパラメータを指定する必要があるとのことcabalのパラメータをstackで実現するには?
- ドキュメントをみて解決
