Use the Cython module from the Python installation specified by
'python_cmd', rather than the Python installation that is running
SCons. This allows complilation of Cantera for Python versions that
aren't supported by SCons (e.g. Python 3.4).
Recent versions of clang++ warn that instantiation of a templated variable is
required at a certain point where no definition is available. Declaring such a
definition to be available is fine with older versions of clang++ as well, but
causes linker errors with g++, so this change is only applied when using
clang++.
New scons build option introduced to replace 'system_googletest'
and allow to not use 'googletest' module while running test
(all tests that require this module could be omited)
New option description:
'googletest',
"""Select whether to use gtest/gmock from system
installation ('system'), from a Git submodule ('submodule'), to decide
automatically ('default') or don't look for gtest/gmock ('none')
and don't run tests that depend on gtest/gmock.
If this option is set then it suppress the deprecated 'system_googletest' option."""
Old option is still presented and mentioned as 'deprecated'.
Option 'googletest' supresses the old 'system_googletest' one.
Adds a new internal-only option for the pythonX_package variables,
'minimal-default'. This value is set when pythonX_package has not been
configured by the user (i.e., it started as default) and checking for
Cython or NumPy fails, so we can't build the full interface.
If python_package is default and pythonX_package is present (where X is
the same version of Python as python_package), prefer the
pythonX_package options and don't warn quite so much
Switch to importing the lib3to2 as a check, which is platform agnostic
and doesn't depend on how 3to2 was installed. Also, take advantage of
the fact that the 3to2 converter recurses by default to avoid spawning
a bunch of subprocesses. Finally, don't depend on the location of the
3to2 script and just use the library directly to do the conversion.
Update and make more consistent the specification of Python package
building. Since SCons can be run by Python 3 now, we cannot assume that
the Python running SCons is Python 2. This changes a bunch of
assumptions in SConstruct about where things should be built or
installed. This commit addresses those assumptions by making the options
for Python 2 and Python 3 symmetric.
If no full or minimal Python interface is being built, copy the minimal
interface into the build directory and use the sys.executable to run it,
so the tests that require CTML or CTI conversion can run.
