=> Bootstrap dependency digest>=20010302: found digest-20190127
=> Checksum SHA1 OK for greenlet-0.4.15.tar.gz
=> Checksum RMD160 OK for greenlet-0.4.15.tar.gz
=> Checksum SHA512 OK for greenlet-0.4.15.tar.gz
===> Installing dependencies for py27-greenlet-0.4.15
==========================================================================
The following variables will affect the build process of this package,
py27-greenlet-0.4.15.  Their current value is shown below:

        * PYTHON_VERSION_DEFAULT = 37

Based on these variables, the following variables have been set:

        * PYPACKAGE = python27

You may want to abort the process now with CTRL-C and change their value
before continuing.  Be sure to run `/usr/bin/make clean' after
the changes.
==========================================================================
=> Build dependency cwrappers>=20150314: found cwrappers-20180325
=> Full dependency python27>=2.7.1nb2: found python27-2.7.17
===> Overriding tools for py27-greenlet-0.4.15
===> Extracting for py27-greenlet-0.4.15
===> Patching for py27-greenlet-0.4.15
=> Applying pkgsrc patches for py27-greenlet-0.4.15
===> Creating toolchain wrappers for py27-greenlet-0.4.15
===> Configuring for py27-greenlet-0.4.15