zeromq/libzmq — pull request #1209 by pmienk (2014-10-16 08:24:21+00:00)
Title: Simplify libsodium inclusion

Use PKG_CHECK_MODULES to locate libsodium, with --with-libsodium=yes forcing failure when libsodium is not installed. Removes options for alternate paths - these should be supported via extending PKG_CONFIG_PATH.