Added variabl for debug sections back to Makefile
Squashed 'ocamlczmq/' changes from 0cb2dc9..75c7617

75c7617 Merge pull request #10 from chsticksel/master
54156cf Added check for librt and libpthread to configure
342db9e Added check for librt and libpthread to configure

git-subtree-dir: ocamlczmq
git-subtree-split: 75c761741b66f98cf2e4ca9b2933d53b15ff8971
Merge commit '9be02d527aaea50e73056f5d53876e41bb7d8094'