George Hartzell 1e92721ab5 Fix m4 on OS X highsierra (#8559) ... m4 exited immediately (causing the nettle build to fail). ``` (alice)[11:09:46]spack>>/Users/hartzell/tmp/spack-mac/spack/opt/spack/darwin-highsierra-x86_64/clang-9.1.0-apple/m4-1.4.18-caxsf7l5yd7qbq2bown6bzi5el3ltfwf/bin/m4 Abort trap: 6 (alice)[11:10:18]spack>>fg ``` Tracked down a fix via the Homebrew recipe. I'll send a note to the `bug-m4@gnu.org` list to ensure that upstream knows about it.		2018-06-23 20:34:04 -05:00
..
spack	Fix m4 on OS X highsierra (#8559)	2018-06-23 20:34:04 -05:00