Building with GCC > 4.9 produces a broken VM for reasons that are not yet understood, see http://forum.world.st/OSProcess-fork-issue-with-Debian-built-VM-td4947326.html also disable "stackprotector" hardening for compatibility with this older gcc.
This commit adds the third party libraries needed by the default Pharo environment to the LD_LIBRARY_PATH, by using makeWrapper.