Switch to DynaLoader and use dl_load_flags
Switch to DynaLoader and use dl_load_flags

On most UNIX variants, this flag makes DynaLoader pass RTLD_GLOBAL to
dl_open, so extensions can resolve the needed symbols without explicitly
linking against the DSO.

git-svn-id: 33c1020af00f61ce75d0fe36814d3322ab23371a@1332250 13f79535-47bb-0310-9956-ffa450edef68

nwellnhof/lucy-clownfish,rectang/lucy-clownfish,apache/lucy-clownfish,rectang/lucy-clownfish,rectang/lucy-clownfish,rectang/lucy-clownfish,nwellnhof/lucy-clownfish,rectang/lucy-clownfish,apache/lucy-clownfish,rectang/lucy-clownfish,rectang/lucy-clownfish,apache/lucy-clownfish,apache/lucy-clownfish,apache/lucy-clownfish,apache/lucy-clownfish,nwellnhof/lucy-clownfish,nwellnhof/lucy-clownfish,apache/lucy-clownfish,nwellnhof/lucy-clownfish,nwellnhof/lucy-clownfish,nwellnhof/lucy-clownfish,nwellnhof/lucy-clownfish,apache/lucy-clownfish,rectang/lucy-clownfish,rectang/lucy-clownfish