am 4c5231d2: Work around a Mac OS libc bug.
am 4c5231d2: Work around a Mac OS libc bug.

* commit '4c5231d2cd83536584f7f1063d0afffa124fcec4':
  Work around a Mac OS libc bug.

treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst