conf-* pkg to explicit dependency to the lib curl
conf-* pkg to explicit dependency to the lib ffi
conf-* pkg to explicit dependency to the lib pcre
conf-* pkg to explicit dependency to the lib glew
conf-* pkg to explicit dependency to the lib ftgl
conf-* pkg to explicit dependency to the lib png
conf-* pkg to explicit dependency to the lib gsl
conf-* pkg to explicit dependency to the lib expat