Re: [Haskell-cafe] OpenSSL.Digest linking error: EVP_mdc2

Thanks. Here's the quick-and-dirty patch I applied to make things work. --- /tmp/hopenssl-1.0/OpenSSL/Digest.hs 2008-02-20 18:43:43.000000000 -0500 +++ hopenssl-1.0/OpenSSL/Digest.hs 2008-07-07 02:06:55.000000000 -0400 @@ -197,7 +197,7 @@ foreign import ccall unsafe "EVP_sha1" mdSHA1 :: IO MDEngine foreign import ccall unsafe "EVP_dss" mdDSS :: IO MDEngine foreign import ccall unsafe "EVP_dss1" mdDSS1 :: IO MDEngine -foreign import ccall unsafe "EVP_mdc2" mdMDC2 :: IO MDEngine +--foreign import ccall unsafe "EVP_mdc2" mdMDC2 :: IO MDEngine foreign import ccall unsafe "EVP_ripemd160" mdRIPEMD160 :: IO MDEngine -- |Map a 'MessageDigest' type into the the corresponding @@ -211,7 +211,7 @@ toMDEngine SHA1 = mdSHA1 toMDEngine DSS = mdDSS toMDEngine DSS1 = mdDSS1 -toMDEngine MDC2 = mdMDC2 +toMDEngine MDC2 = undefined toMDEngine RIPEMD160 = mdRIPEMD160 -- * Helper Functions On Mon, Jul 7, 2008 at 1:51 AM, Donn Cave wrote:

Quoth "Ken Takusagawa" :

| $ ghc --make test-hopenssl.hs -lcrypto | [1 of 1] Compiling Main ( test-hopenssl.hs, test-hopenssl.o ) | Linking test-hopenssl ... | /tmp/ken/lib/hopenssl-1.0/ghc-6.8.2/libHShopenssl-1.0.a(Digest.o): In | function `s2O8_info': | (.text+0xf3a): undefined reference to `EVP_mdc2' | /tmp/ken/lib/hopenssl-1.0/ghc-6.8.2/libHShopenssl-1.0.a(Digest.o): In | function `s2TQ_info': | (.text+0x1435): undefined reference to `EVP_mdc2' | collect2: ld returned 1 exit status

I see the following in the Configure file for openssl-0.9.8h:

my $default_depflags = "-DOPENSSL_NO_CAMELLIA -DOPENSSL_NO_CMS -DOPENSSL_NO_GMP -DOPENSSL_NO_MDC2 -DOPENSSL_NO_RC5 -DOPENSSL_NO_RFC3779 -DOPENSSL_NO_SEED -DOPENSSL_NO_TLSEXT ";my $default_depflags = "-DOPENSSL_NO_CAMELLIA -DOPENSSL_NO_CMS -DOPENSSL_NO_GMP

I don't know why this would be, but I infer that the function hopenssl was looking for is commonly missing in SSL builds.

Donn Cave, donn@avvanta.com _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe