string keys.  Just doing a pointer compare before the string compare
(in fact before the hash compare!) is just as fast.

- -mt option for Solaris threads with Solaris compiler
- make clean when switching static link status for Linux
- DEC alpha --with-dec-threads option
- SunOS removed unnecessary warnings, mention -Xa for SunPro
- Setup.local file
- warn to try make clean after changing readline option
- mention --with-threads as alias for --with-thread

*final* linker argument.  This implies --with-thread.

Reimplemented --with-threads as an alias for --with-thread.

selection; return None instead.

leak of memory and file descriptors (thanks for Roj for reporting
that!).  Alas, the speed goes down by 5%. :-(

This is safe now that both intrcheck() and signalmodule.c schedule a
sigcheck() call via Py_AddPendingCall().

This gives another 7% speedup (never run such a test twice ;-).

This avoids having to call sigcheck() (the same routine by its old
name :-) in the ticker code in ceval.c's main interpreter loop.

Py_AddPendingCall().  This avoids having to call sigcheck() in the
ticker code in ceval.c's main interpreter loop.

- fix bug in Py_MakePendingCalls() with threading
- fix return type of do_raise
- remove build_slice (same as PySlice_New)
- remove code inside #if 0
- remove code inside #ifdef CHECK_STACK
- remove code inside #ifdef SUPPORT_OBSOLETE_ACCESS
- comment about newimp.py should refer to ni.py

- get fastlocals differently
- call newframeobject() with fewer arguments
- toss getowner(), which was unused anyway

Rather than allocating a list object for the fast locals and another
(extensible one) for the value stack and allocating the block stack
dynamically, allocate the block stack with a fixed size (CO_MAXBLOCKS
from compile.h), and stick the locals and value stack at the end of
the object (this is now possible since the stack size is known
beforehand).  Get rid of the owner field and the nvalues argument --
it is available in the code object, like nlocals.

This requires small changes in ceval.c only.

See frameobject.c checkin message.

literals that look like identifiers.  Also intern all strings used as
names during the compilation.

hash value.  Interning strings (which requires hash caching) tries to
ensure that only one string object with a given value exists, so
equality tests are one pointer comparison.  Together, these can speed
the interpreter up by as much as 20%.  Each costs the size of a long
or pointer per string object.  In addition, interned strings live
until the end of times.  If you are concerned about memory footprint,
simply comment the #define out here (and rebuild everything!).

break to most cases, as suggested by Tim Peters.  This gives another
8-10% speedup.

fileno(std*).