* harbour/source/vm/codebloc.c
* updated old and not longer valid comment
* harbour/source/vm/memvars.c
* minor code formatting
* harbour/source/common/expropt2.c
! fixed bug in power math expression optimization caused
by two lines left in the code by mistake. Many thanks to
Maurilio for locating the problem.
* harbour/include/hbstack.h
* harbour/source/vm/estack.c
* harbour/source/vm/hvm.c
% added support for buffering hb_stack TLS access be preloading
the stack pointer into C stack function local variables.
Please make speed tests for MT mode with different C compilers
and different platforms.
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