Matt Belhorn 7ccf56a0b7 Removes cyclic dependency on spack.config. (#2121) ... Merge #2030 added a cyclic dependency between the Cray platform needing to read a `targets.yaml` config file and `config.py` needing to get the platform names. This commit removes the cyclic dependency in favor of the more general config scheme. It also removes the now functionless `targets.yaml` config file. This breaks 'frontend' targets on the Cray platform but all architecture targets, including the frontend, that are provided by CrayPE are added to the Platform anyway so users can be explicit about the architecture targeted by the Cray compiler wrappers: ``` spack spec libelf arch=cray-CNL-frontend ``` becomes ``` spack spec libelf arch=cray-CNL-mc8 # on an XK7 or spack spec libelf arch=cray-CNL-sandybridge # on an older XC30, etc.. ``` The only way the 'frontend' target can be defined after this commit is through target environment variables.		2016-10-30 21:02:27 -07:00
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spack	Removes cyclic dependency on spack.config. (#2121)	2016-10-30 21:02:27 -07:00