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-rw-r--r--lib/spack/spack/build_environment.py9
1 files changed, 7 insertions, 2 deletions
diff --git a/lib/spack/spack/build_environment.py b/lib/spack/spack/build_environment.py
index a2eabbc3db..c66ee18065 100644
--- a/lib/spack/spack/build_environment.py
+++ b/lib/spack/spack/build_environment.py
@@ -149,12 +149,17 @@ def clean_environment():
# can affect how some packages find libraries. We want to make
# sure that builds never pull in unintended external dependencies.
env.unset('LD_LIBRARY_PATH')
- env.unset('LIBRARY_PATH')
- env.unset('CPATH')
env.unset('LD_RUN_PATH')
env.unset('DYLD_LIBRARY_PATH')
env.unset('DYLD_FALLBACK_LIBRARY_PATH')
+ # These vars affect how the compiler finds libraries and include dirs.
+ env.unset('LIBRARY_PATH')
+ env.unset('CPATH')
+ env.unset('C_INCLUDE_PATH')
+ env.unset('CPLUS_INCLUDE_PATH')
+ env.unset('OBJC_INCLUDE_PATH')
+
# On Cray "cluster" systems, unset CRAY_LD_LIBRARY_PATH to avoid
# interference with Spack dependencies.
# CNL requires these variables to be set (or at least some of them,