rubinius/rubinius — pull request #1749 by mpapis (2012-05-26 01:33:15+00:00)
Title: fix RPATHFLAG, fix #1647

`RPATHFLAG` was not set properly - this resulted in not adding `-Wl,-R` and not finding **libyaml** when compiled from not system lib path.

After fixing `RPATHFLAG` - I found other bug `LIBPATHFLAG+RPATHFLAG` was adding two "%s%s" which could not be satisfied with just one string in `% x.quote`.

Most interesting MRI has the same code and it does not fail in the same situation(libyaml) ... but when testing strings in `irb` it fails similarly to RBX.