首先出现错误消息：
$ stack build
Linking /Users/yuzhao/.stack/setup-exe-cache/x86_64-osx/tmp-Cabal-simple_mPHDZzAJ_2.2.0.1_ghc-8.4.4 ...
clang-5.0: warning: argument unused during compilation: '-nopie' [-Wunused-command-line-argument]
clang-5.0: warning: argument unused during compilation: '-nopie' [-Wunused-command-line-argument]
Undefined symbols for architecture x86_64:
"_iconv", referenced from:
_hs_iconv in libHSbase-4.11.1.0.a(iconv.o)
(maybe you meant: _base_GHCziIOziEncodingziIconv_iconvEncoding13_info, _base_GHCziIOziEncodingziIconv_iconvEncoding1_info , _base_GHCziIOziEncodingziIconv_iconvEncoding3_closure , _base_GHCziIOziEncodingziIconv_iconvEncoding4_closure , _base_GHCziIOziEncodingziIconv_iconvEncoding7_closure , _base_GHCziIOziEncodingziIconv_iconvEncoding4_info , _base_GHCziIOziEncodingziIconv_iconvEncoding7_info , _base_GHCziIOziEncodingziIconv_iconvEncoding6_info , _base_GHCziIOziEncodingziIconv_iconvEncoding5_closure , _hs_iconv_open , _base_GHCziIOziEncodingziIconv_iconvEncoding9_closure , _base_GHCziIOziEncodingziIconv_iconvEncoding15_info , _base_GHCziIOziEncodingziIconv_iconvEncoding_closure , _base_GHCziIOziEncodingziIconv_iconvEncoding14_bytes , _hs_iconv_close , _base_GHCziIOziEncodingziIconv_iconvEncoding12_closure , _base_GHCziIOziEncodingziIconv_iconvEncoding12_info , _base_GHCziIOziEncodingziIconv_iconvEncoding2_info , _base_GHCziIOziEncodingziIconv_iconvEncoding11_closure , _base_GHCziIOziEncodingziIconv_iconvEncoding2_closure , _base_GHCziIOziEncodingziIconv_iconvEncoding6_closure , _base_GHCziIOziEncodingziIconv_iconvEncoding9_info , _base_GHCziIOziEncodingziIconv_iconvEncoding15_closure , _base_GHCziIOziEncodingziIconv_iconvEncoding_info , _base_GHCziIOziEncodingziIconv_iconvEncoding8_closure , _base_GHCziIOziEncodingziIconv_iconvEncoding8_info , _base_GHCziIOziEncodingziIconv_iconvEncoding13_closure , _base_GHCziIOziEncodingziIconv_iconvEncoding10_bytes , _base_GHCziIOziEncodingziIconv_iconvEncoding1_closure , _hs_iconv , _base_GHCziIOziEncodingziIconv_iconvEncoding11_info )
"_iconv_open", referenced from:
_hs_iconv_open in libHSbase-4.11.1.0.a(iconv.o)
(maybe you meant: _hs_iconv_open)
"_iconv_close", referenced from:
_hs_iconv_close in libHSbase-4.11.1.0.a(iconv.o)
(maybe you meant: _hs_iconv_close)
"_locale_charset", referenced from:
_localeEncoding in libHSbase-4.11.1.0.a(PrelIOUtils.o)
ld: symbol(s) not found for architecture x86_64
clang-5.0: error: linker command failed with exit code 1 (use -v to see invocation)
`cc' failed in phase `Linker'. (Exit code: 1)
-- While building simple Setup.hs using:
/Users/yuzhao/.nix-profile/bin/ghc -rtsopts -threaded -clear-package-db -global-package-db -hide-all-packages -package base -main-is StackSetupShim.mainOverride -package Cabal-2.2.0.1 /Users/yuzhao/.stack/setup-exe-src/setup-mPHDZzAJ.hs /Users/yuzhao/.stack/setup-exe-src/setup-shim-mPHDZzAJ.hs -o /Users/yuzhao/.stack/setup-exe-cache/x86_64-osx/tmp-Cabal-simple_mPHDZzAJ_2.2.0.1_ghc-8.4.4
Process exited with code: ExitFailure 1
我正在使用nix，并且发现了许多其他解决方案，这些问题是使用Homebrew而不是nix的。
此外，根据stack docs，stack setup也给我同样的错误消息。
有什么办法解决这个问题吗？