Adam J. Stewart 9af155f0f6 Fix some Mac constraint checks (#12138) ... * Fix Mac platform check for dependency in py-ipython package: 'when' constraints in Spack directives must be Specs (either a Spec object or a Spec in string format) * Fix Mac version check in py-numpy: platform.mac_ver() returns a 3-part string as its first tuple item so the check as written would never pass; use Spack Version object to simplify check. * Fix Mac version check in qt package (the check was incorrectly comparing ints and strings) and use Spack version object to simplify check.		2019-07-29 15:05:02 -07:00
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spack	Fix some Mac constraint checks (#12138)	2019-07-29 15:05:02 -07:00