我正在尝试使用官方教程中提供的安装指南在 OSX Lion 中安装 Idris 语言。我已经安装了GMP。这是我得到的错误:
$ cabal install idris
Resolving dependencies...
Configuring libffi-0.1...
cabal: The pkg-config package libffi is required but it could not be found.
[1 of 1] Compiling Main ( /var/folders/f0/dlx6tl5x18z4k4_vq0fkqtb80000gn/T/llvm-general-3.3.5.0-61662/llvm-general-3.3.5.0/Setup.hs, /var/folders/f0/dlx6tl5x18z4k4_vq0fkqtb80000gn/T/llvm-general-3.3.5.0-61662/llvm-general-3.3.5.0/dist/setup/Main.o )
Linking /var/folders/f0/dlx6tl5x18z4k4_vq0fkqtb80000gn/T/llvm-general-3.3.5.0-61662/llvm-general-3.3.5.0/dist/setup/setup ...
setup: The program llvm-config version ==3.3.* is required but it could not be
found.
cabal: Error: some packages failed to install:
idris-0.9.9 depends on llvm-general-3.3.5.0 which failed to install.
libffi-0.1 failed during the configure step. The exception was:
ExitFailure 1
llvm-general-3.3.5.0 failed during the configure step. The exception was:
ExitFailure 1
尝试在没有 LLVM 的情况下安装 Idris 会产生此错误:
$ cabal install idris -f-LLVM
Resolving dependencies...
Configuring libffi-0.1...
cabal: The pkg-config package libffi is required but it could not be found.
cabal: Error: some packages failed to install:
idris-0.9.9 depends on libffi-0.1 which failed to install.
libffi-0.1 failed during the configure step. The exception was:
ExitFailure 1