rbenv patch to be applied when installing ruby 1.8.7-p375 Patch adapted from https://github.com/sstephenson/ruby-build/wiki#make-error-for-200-p247-and-lower-on-fedorared-hat

1.8.7-rbenv.patch

--- ext/openssl/ossl_pkey_ec.c
+++ ext/openssl/ossl_pkey_ec.c
@@ -757,8 +757,10 @@ static VALUE ossl_ec_group_initialize(int argc, VALUE *argv, VALUE self)
                 method = EC_GFp_mont_method();
             } else if (id == s_GFp_nist) {
                 method = EC_GFp_nist_method();
+#if !defined(OPENSSl_NO_EC2M)
             } else if (id == s_GF2m_simple) {
                 method = EC_GF2m_simple_method();
+#endif
             }
 
             if (method) {
@@ -811,8 +813,10 @@ static VALUE ossl_ec_group_initialize(int argc, VALUE *argv, VALUE self)
 
             if (id == s_GFp) {
                 new_curve = EC_GROUP_new_curve_GFp;
+#if !defined(OPENSSL_NO_EC2M)
             } else if (id == s_GF2m) {
                 new_curve = EC_GROUP_new_curve_GF2m;
+#endif
             } else {
                 rb_raise(rb_eArgError, "unknown symbol, must be :GFp or :GF2m");
             }

Patch adapted from: https://github.com/sstephenson/ruby-build/wiki#make-error-for-200-p247-and-lower-on-fedorared-hat

The curl options used on the link you referenced are needed. So the command is:

curl -fsSL https://gist.github.com/thescouser89/8102408/raw/417cba9fee6ba1945b967b5ef236f676bd5005e0/1.8.7-rbenv.patch | rbenv install --patch 1.8.7-p375

The -L option is especially needed as this will follow redirects now that GitHub has moved the gists to a new domain. Also the options disable curl output so just the patch is piped to rbenv. But thanks for the patch. It solved my problem on Fedora 20.

I have forked this and made one for Ruby 1.9.2-p320. Install with:

curl -fsSL https://gist.githubusercontent.com/eric1234/7035f3669bf880b8c71e/raw/3907bba14bf0d06daefdeead290635601dd0d92a/1.9.2-p320.patch | rbenv install --patch 1.9.2-p320

Another fork for 2.0.0-p0. Install with:

curl -fsSL https://gist.githubusercontent.com/eric1234/e23d63f99427b39787ca/raw/7859c4b08c9ae7c0cebc69d42cce2b553838dcf0/2.0.0-p0-rbenv.patch | rbenv install --patch 2.0.0-p0

the 1.9.2-p320 patch also works with 1.9.2-p330