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-rw-r--r--var/spack/repos/builtin/packages/python/package.py28
1 files changed, 25 insertions, 3 deletions
diff --git a/var/spack/repos/builtin/packages/python/package.py b/var/spack/repos/builtin/packages/python/package.py
index 87038810e7..683ce4bbbe 100644
--- a/var/spack/repos/builtin/packages/python/package.py
+++ b/var/spack/repos/builtin/packages/python/package.py
@@ -86,6 +86,11 @@ class Python(AutotoolsPackage):
description='Produce position-independent code (for shared libs)')
variant('dbm', default=True, description='Provide support for dbm')
+ variant(
+ 'optimizations',
+ default=False,
+ description='Enable expensive build-time optimizations, if available'
+ )
depends_on("openssl")
depends_on("bzip2")
@@ -104,10 +109,21 @@ class Python(AutotoolsPackage):
patch('cray-rpath-2.3.patch', when="@2.3:3.0.1 platform=cray")
patch('cray-rpath-3.1.patch', when="@3.1:3.99 platform=cray")
+ # For more information refer to this bug report:
+ # https://bugs.python.org/issue29712
+ conflicts(
+ '@:2.8 +shared',
+ when='+optimizations',
+ msg='+optimizations is incompatible with +shared in python@2.X'
+ )
+
_DISTUTIL_VARS_TO_SAVE = ['LDSHARED']
_DISTUTIL_CACHE_FILENAME = 'sysconfig.json'
_distutil_vars = None
+ # An in-source build with --enable-optimizations fails for python@3.X
+ build_directory = 'spack-build'
+
@when('@2.7:2.8,3.4:')
def patch(self):
# NOTE: Python's default installation procedure makes it possible for a
@@ -122,7 +138,6 @@ class Python(AutotoolsPackage):
def setup_environment(self, spack_env, run_env):
spec = self.spec
- prefix = self.prefix
# TODO: The '--no-user-cfg' option for Python installation is only in
# Python v2.7 and v3.4+ (see https://bugs.python.org/issue1180) and
@@ -133,8 +148,6 @@ class Python(AutotoolsPackage):
'user configurations are present.').format(self.version))
# Need this to allow python build to find the Python installation.
- spack_env.set('PYTHONHOME', prefix)
- spack_env.set('PYTHONPATH', prefix)
spack_env.set('MACOSX_DEPLOYMENT_TARGET', platform.mac_ver()[0])
def configure_args(self):
@@ -148,9 +161,18 @@ class Python(AutotoolsPackage):
'CPPFLAGS=-I{0}'.format(' -I'.join(dp.include for dp in dep_pfxs)),
'LDFLAGS=-L{0}'.format(' -L'.join(dp.lib for dp in dep_pfxs)),
]
+
+ if spec.satisfies('@2.7.13:2.8,3.5.3:', strict=True) \
+ and '+optimizations' in spec:
+ config_args.append('--enable-optimizations')
+
if spec.satisfies('%gcc platform=darwin'):
config_args.append('--disable-toolbox-glue')
+ if spec.satisfies('%intel', strict=True) and \
+ spec.satisfies('@2.7.12:2.8,3.5.2:', strict=True):
+ config_args.append('--with-icc')
+
if '+shared' in spec:
config_args.append('--enable-shared')
else: