Log message:
Revert previous...GREP is correct.

Log message:
Use EGREP instead of GREP.

Log message:
Creating the list of files to link with grep does not work, since
the PLIST is created at install time; thus, add all files to link in here
by hand.

Log message:
Create BUILDLINK_CPPFLAGS and BUILDLINK_LDFLAGS for the python packages so
as to find their headers and libraries.  Also allow "-lpython" to resolve
to the versioned libpython (-lpython2.2, etc.).

Log message:
Python extensions also install headers into ${PYINC}, so we can't just
assume all of those headers belong to the python package.  We use the trick
for kdelibs2 and generate the BUILDLINK_FILES list from the PLIST.

Log message:
Add buildlink2.mk file for use by other package Makefiles, and by
python/pyversion.mk in particular.