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-rw-r--r--lib/spack/spack/build_environment.py2
-rw-r--r--lib/spack/spack/util/module_cmd.py2
2 files changed, 3 insertions, 1 deletions
diff --git a/lib/spack/spack/build_environment.py b/lib/spack/spack/build_environment.py
index 7206ddb247..4a57dde77b 100644
--- a/lib/spack/spack/build_environment.py
+++ b/lib/spack/spack/build_environment.py
@@ -642,7 +642,7 @@ def get_rpaths(pkg):
# Second module is our compiler mod name. We use that to get rpaths from
# module show output.
if pkg.compiler.modules and len(pkg.compiler.modules) > 1:
- rpaths.append(path_from_modules(pkg.compiler.modules[1]))
+ rpaths.append(path_from_modules([pkg.compiler.modules[1]]))
return list(dedupe(filter_system_paths(rpaths)))
diff --git a/lib/spack/spack/util/module_cmd.py b/lib/spack/spack/util/module_cmd.py
index 3b11851b60..bc994fd4b4 100644
--- a/lib/spack/spack/util/module_cmd.py
+++ b/lib/spack/spack/util/module_cmd.py
@@ -145,6 +145,8 @@ def path_from_modules(modules):
Returns:
Guess of the prefix path where the package
"""
+ assert isinstance(modules, list), 'the "modules" argument must be a list'
+
best_choice = None
for module_name in modules:
# Read the current module and return a candidate path