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-rw-r--r--var/spack/repos/builtin/packages/py-numpy/package.py8
-rw-r--r--var/spack/repos/builtin/packages/py-scipy/package.py5
2 files changed, 9 insertions, 4 deletions
diff --git a/var/spack/repos/builtin/packages/py-numpy/package.py b/var/spack/repos/builtin/packages/py-numpy/package.py
index 9fd0fdf38b..42cc6be231 100644
--- a/var/spack/repos/builtin/packages/py-numpy/package.py
+++ b/var/spack/repos/builtin/packages/py-numpy/package.py
@@ -149,9 +149,13 @@ class PyNumpy(PythonPackage):
def build_args(self, spec, prefix):
args = []
- # From NumPy 1.10.0 on it's possible to do a parallel build
+ # From NumPy 1.10.0 on it's possible to do a parallel build.
if self.version >= Version('1.10.0'):
- args = ['-j', str(make_jobs)]
+ # But Parallel build in Python 3.5+ is broken. See:
+ # https://github.com/spack/spack/issues/7927
+ # https://github.com/scipy/scipy/issues/7112
+ if spec['python'].version < Version('3.5'):
+ args = ['-j', str(make_jobs)]
return args
diff --git a/var/spack/repos/builtin/packages/py-scipy/package.py b/var/spack/repos/builtin/packages/py-scipy/package.py
index cbe23fe69d..b26ac618e7 100644
--- a/var/spack/repos/builtin/packages/py-scipy/package.py
+++ b/var/spack/repos/builtin/packages/py-scipy/package.py
@@ -74,9 +74,10 @@ class PyScipy(PythonPackage):
args = []
# Build in parallel
- # Known problems with Python 3
+ # Known problems with Python 3.5+
+ # https://github.com/spack/spack/issues/7927
# https://github.com/scipy/scipy/issues/7112
- if not spec.satisfies('^python@3:'):
+ if not spec.satisfies('^python@3.5:'):
args.extend(['-j', str(make_jobs)])
return args