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-rw-r--r--lib/spack/spack/build_environment.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/spack/spack/build_environment.py b/lib/spack/spack/build_environment.py
index 5fa8a5d7de..70571570a9 100644
--- a/lib/spack/spack/build_environment.py
+++ b/lib/spack/spack/build_environment.py
@@ -159,6 +159,10 @@ def clean_environment():
env.unset('CPLUS_INCLUDE_PATH')
env.unset('OBJC_INCLUDE_PATH')
+ # Avoid that libraries of build dependencies get hijacked.
+ env.unset('LD_PRELOAD')
+ env.unset('DYLD_INSERT_LIBRARIES')
+
# 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,