Cabal在Windows Server 2008上安装带有64位OpenSSL库的HsOpenSSL

Question

I have a haskell project that I'm trying to build on Windows 2008 64-bit. One of the dependencies is HsOpenSSL (not be to confused w/ hopenssl). Per the GHC docs, in order for this install to go smoothly one must install a binary distribution of openssl from here: http://slproweb.com/products/Win32OpenSSL.html and link during the cabal install process like this:

cabal install HsOpenSSL --extra-include-dirs="c:/OpenSSL-Win32/include" --extra-lib-dirs="c:/OpenSSL-Win32"

Now the problem arises when I attempt to install the 64-bit binary distribution and install HsOpenSSL w/ it.

 cabal install HsOpenSSL --extra-include-dirs="c:/OpenSSL-Win64/include" --extra-lib-dirs="c:/OpenSSL-Win64"

This still throws the error of:

Resolving dependencies...
Configuring HsOpenSSL-0.10.3.5...
cabal.exe: Missing dependencies on foreign libraries:
* Missing C libraries: eay32, ssl32
This problem can usually be solved by installing the system packages that
provide these libraries (you may need the "-dev" versions). If the libraries
are already installed but in a non-standard location then you can use the
flags --extra-include-dirs= and --extra-lib-dirs= to specify where they are.
Failed to install HsOpenSSL-0.10.3.5
cabal.exe: Error: some packages failed to install:
HsOpenSSL-0.10.3.5 failed during the configure step. The exception was:
ExitFailure 1

After inspecting the directories (OpenSSL-Win32 and OpenSSL-Win64) the directories are apparently the exact same with one small difference. There is no MinGW folder in OpenSSL-Win64/libs/ , but there is one in OpenSSL-Win32/libs/ . After removing this directory from the OpenSSL-Win32 install directory, HsOpenSSL still installs fine when linked w/ the 32-bit libs. So I don't think that difference seems to matter. All that to ask, Is HsOpenSSL compatible with openssl's 64-bit libs? Is there anything obviously wrong about what I'm doing?

I'm using Cygwin, cabal 1.18.0.2, ghc 7.6.3, openSSL version 1.0.1e

Answer 1

It's four years later, but I just encountered the same problem so I guess its still relevant. I solved it by downloading the latest Win64OpenSSL binaries, and manually cloning the HsOpenSSL repo at https://github.com/vshabanov/HsOpenSSL . Then I opened the HsOpenSSL.cabal file and changed line 94 from

Extra-Libraries: eay32 ssl

to:

Extra-Libraries: libeay32 ssleay32

Finally, open cmd and make the repo your current directory. Then use cabal configure --extra-include-dirs="c:/OpenSSL-Win64/include" --extra-lib-dirs="c:/OpenSSL-Win64/lib" and cabal install to install the library.