bitcoin/secp256k1 — pull request #155 by theuni (2014-12-10 18:21:45+00:00)
Title: build: fix openssl detection for cross builds

Make sure that the detected openssl successfully links before enabling support.

Also fixes builds like './configure CC="gcc -m32" ' as requested by @sipa.

Additionally, this should allow #148 to work without disabling tests.