Merge branch 'develop' of https://github.com/LLNL/spack into features/source_diffs_in_environment_modifications

Conflicts:
	lib/spack/spack/test/environment.py

1 files changed, 3 insertions, 0 deletions

diff --git a/bin/spack b/bin/spack
index 3544feb10a..9b1276a866 100755
--- a/bin/spack
+++ b/bin/spack
@@ -138,6 +138,9 @@ def main():
         import spack.util.debug as debug
         debug.register_interrupt_handler()
 
+    from spack.yaml_version_check import check_yaml_versions
+    check_yaml_versions()
+
     spack.spack_working_dir = working_dir
     if args.mock:
         from spack.repository import RepoPath