$ spack install -v -j1 atlas platform=darwin
...
Make.top:1: Make.inc: No such file or directory
Make.top:325: warning: overriding commands for target `/AtlasTest'
Make.top:76: warning: ignoring old commands for target `/AtlasTest'
make[1]: *** No rule to make target `Make.inc'. Stop.
make: *** [build] Error 2
I'm on macOS 10.14.5 using Clang 10.0.1.
$ uname -a
Darwin Vesuvius 18.6.0 Darwin Kernel Version 18.6.0: Thu Apr 25 23:16:27 PDT 2019; root:xnu-4903.261.4~2/RELEASE_X86_64 x86_64
Steps to reproduce the issue
Platform and user environment
I'm on macOS 10.14.5 using Clang 10.0.1.
Additional information