Massimiliano Culpo df1e23335c Preserve Spack CC/FC/F77/CXX settings when loading modules (#8346) ... Fixes #8345 Spack environment modifications are applied before modules are loaded; this includes settings to CC, FC, F77, and CXX, which point to the Spack compiler wrappers. If the loaded modules set CC, this overrides the Spack compiler wrappers. This PR adds a context manager to preserve the values of CC etc. that are set by Spack: any effects on the CC, FC, F77, and CXX variables from modules are undone and their original values are restored.		2018-06-05 11:26:30 -07:00
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spack	Preserve Spack CC/FC/F77/CXX settings when loading modules (#8346)	2018-06-05 11:26:30 -07:00