test-many-klibcs: Delete build directory before building

Currently we clean the source directory.  That's probably worth
continuing to do, but in case I change the build configurations or
tools the build directory really needs to be cleaned too.
1 file changed
tree: 96c0dc343a9f686b11840afc593c1e695dc58bb4
  1. .gitignore
  2. newklibc
  3. test-many-klibcs