scheibelp 0b27a7e13d Detect when OS updates affect compiler selection (#3410) ... Fixes #1476 Concretization uses compilers defined in config files and if those are not available defaults to searching typical paths where the detected operating system would have a compiler. If there is an OS update, the detected OS can change; in this case all compilers defined in the config files would no longer match (because they would be associated with the previous OS version). The error message in this case was too vague. This commit adds logic for detecting when it is likely that the OS has been updated (in particular when that affects compiler concretization) and improves the information provided to the user in the error message.		2017-03-16 21:08:13 -07:00
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spack	Detect when OS updates affect compiler selection (#3410)	2017-03-16 21:08:13 -07:00