The "rt" and "dl" libraries in Cygwin

Question

This may be silly, but I can’t figure out which package I need to install in Cygwin to fix the following missing libraries:

config.status: creating unix.buildinfo
config.status: creating include / HsUnixConfig.h
cabal.exe: Missing dependencies on foreign libraries:
* Missing header file: HsUnix.h
* Missing C libraries: rt, dl

Any ideas or how you usually find out which package to install when you get feedback that the xxx file is missing (I remember that in gentoo it was pretty simple) ...

Answer 1

I had this problem and I just found this.

http://www.haskell.org/haskellwiki/Windows#Tools_for_compilation

Answer 2

"" librt libdl libc , .

unix , : https://ghc.haskell.org/trac/ghc/ticket/8713 https://github.com/haskell/unix/pull/8

, unix cygwin - " " (.. , , Windows, , CPP).