DUB Errors

["Nordlöw" via Digitalmars-d-learn]

My vibe.d base project no longer builds with DUB git master but 
instead errors as

Building vibe-d ~master configuration "libevent", build type 
debug.
Running dmd...
../../.dub/packages/openssl-master/deimos/openssl/ossl_typ.d(209): 
Error: undefined identifier ssl_ctx_st
../../.dub/packages/openssl-master/deimos/openssl/ssl.d(435): 
Error: ExternC!(extern (C) c_long function(SSL_CTX* ctx, int cmd, 
c_long larg, void* parg)) had previous errors
../../.dub/packages/openssl-master/deimos/openssl/ssl.d(447): 
Error: ExternC!(extern (C) c_long function(SSL_CTX* s, int cb_id, 
ExternC!(extern (C) void function()) fp)) had previous errors
FAIL 
../../.dub/packages/vibe-d-master/.dub/build/libevent-debug-linux.posix-x86_64-dmd_2066-78BF44FED20E955E6BD4F1280160FDD5/ 
vibe-d staticLibrary
Error executing command run: dmd failed with exit code 1.

What's wrong?

With DMD 2.066 on Ubuntu 10.04.