新しい Mac を手に入れたばかりで、Haskell (特にダイアグラム) で使用する Cairo をインストールするのに苦労しています。前のマシンでいろいろとトラブルがあった記憶がありますが、今回は行き止まりです。
$ cabal install cairo
Resolving dependencies...
[1 of 2] Compiling SetupWrapper ( /var/folders/7s/6fn_d5px0hs2204xfztw88v40000gp/T/cairo-0.12.3.1-66116/cairo-0.12.3.1/SetupWrapper.hs, /var/folders/7s/6fn_d5px0hs2204xfztw88v40000gp/T/cairo-0.12.3.1-66116/cairo-0.12.3.1/dist/setup/SetupWrapper.o )
[2 of 2] Compiling Main ( /var/folders/7s/6fn_d5px0hs2204xfztw88v40000gp/T/cairo-0.12.3.1-66116/cairo-0.12.3.1/Setup.hs, /var/folders/7s/6fn_d5px0hs2204xfztw88v40000gp/T/cairo-0.12.3.1-66116/cairo-0.12.3.1/dist/setup/Main.o )
Linking /var/folders/7s/6fn_d5px0hs2204xfztw88v40000gp/T/cairo-0.12.3.1-66116/cairo-0.12.3.1/dist/setup/setup ...
[1 of 2] Compiling Gtk2HsSetup ( Gtk2HsSetup.hs, dist/setup-wrapper/Gtk2HsSetup.o )
[2 of 2] Compiling Main ( SetupMain.hs, dist/setup-wrapper/Main.o )
Linking dist/setup-wrapper/setup ...
Configuring cairo-0.12.3.1...
setup: The program pkg-config version >=0.9.0 is required but it could not be
found.
cabal: Error: some packages failed to install:
cairo-0.12.3.1 failed during the configure step. The exception was:
ExitFailure 1