on running/building hydra

Hi! Trying to build hydra, I get `/gnu/store/lbcfs5201dszjv6sy8y1frafjhjivwpc-hydra-20150407.4c0e3e4/testFile configure.ac is read-only; trying to patch anyway patching file configure.ac File tests/Makefile.am is read-only; trying to patch anyway patching file tests/Makefile.am

on running/building hydra

Hi! Trying to build hydra, I get `/gnu/store/lbcfs5201dszjv6sy8y1frafjhjivwpc-hydra-20150407.4c0e3e4/testFile configure.ac is read-only; trying to patch anyway patching file configure.ac File tests/Makefile.am is read-only; trying to patch anyway patching file tests/Makefile.am