Log message:
Remove unnecessary PLIST_SUBST and FILES_SUBST that are now provided
by the infrastructure.

Mark a couple more packages as not ready for python-3.x.

Log message:
Add SHA512 digests for distfiles for math category

Problems found locating distfiles:
	Package dfftpack: missing distfile dfftpack-20001209.tar.gz
	Package eispack: missing distfile eispack-20001130.tar.gz
	Package fftpack: missing distfile fftpack-20001130.tar.gz
	Package linpack: missing distfile linpack-20010510.tar.gz
	Package minpack: missing distfile minpack-20001130.tar.gz
	Package odepack: missing distfile odepack-20001130.tar.gz
	Package py-networkx: missing distfile networkx-1.10.tar.gz
	Package py-sympy: missing distfile sympy-0.7.6.1.tar.gz
	Package quadpack: missing distfile quadpack-20001130.tar.gz

Otherwise, existing SHA1 digests verified and found to be the same on
the machine holding the existing distfiles (morden).  All existing
SHA1 digests retained for now as an audit trail.

Log message:
Mark packages as not ready for python-3.x where applicable;
either because they themselves are not ready or because a
dependency isn't. This is annotated by
PYTHON_VERSIONS_INCOMPATIBLE=  33 # not yet ported as of x.y.z
or
PYTHON_VERSIONS_INCOMPATIBLE=  33 # py-foo, py-bar
respectively, please use the same style for other packages,
and check during updates.

Use versioned_dependencies.mk where applicable.
Use REPLACE_PYTHON instead of handcoded alternatives, where applicable.
Reorder Makefile sections into standard order, where applicable.

Remove PYTHON_VERSIONS_INCLUDE_3X lines since that will be default
with the next commit.

Whitespace cleanups and other nits corrected, where necessary.

Log message:
Improve comment and description.

Log message:
"user-destdir" is default these days

Log message:
Update py-gmpy to 1.15.
Based on PR 46507 by Wen Heping.
* let to register egg-info.
* all files in distfile are not DOS style EOL oter than Windows related files,
  so remove extract option for ZIP.

GMPY 1.15 is a bug fix release. The following bugs were fixed:
* Reference counting leak in divmod(x,0).
* Fatal crash in remove(x,1).
* Discontinue use of custom memory allocator. (Fixes compatibility with Sage.)
* Allow up to base-62 integer conversion.

Log message:
remove buildlink3.mk, this package have no contents to buildlink.

Log message:
Tag the 28 locations that result in a Python 3.1 package as supporting so.
Remove it from the default list for the rest.

Log message:
Remove PHTHON_VERSIONS_INCOMPATIBLE, all versions in the list are not in pkgsrc.

Log message:
add py-gmpy-1.12, a Python wrapper for math/gmp, from Kamel Derouiche
per pkgsrc-wip