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-rw-r--r--var/spack/repos/builtin/packages/intel-tbb/package.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/var/spack/repos/builtin/packages/intel-tbb/package.py b/var/spack/repos/builtin/packages/intel-tbb/package.py
index 55df90ed7d..115f980e69 100644
--- a/var/spack/repos/builtin/packages/intel-tbb/package.py
+++ b/var/spack/repos/builtin/packages/intel-tbb/package.py
@@ -63,7 +63,7 @@ class IntelTbb(Package):
#
# See https://github.com/intel/tbb/pull/147 for details.
#
- conflicts('%clang', when='@:2019.7',
+ conflicts('%clang', when='@:2019.6',
msg='2019.7 or later required for clang')
conflicts('%gcc@6.1:', when='@:4.4.3',