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[Xotcl] XOTcl 1.5.5 available
Date: Tue, 18 Sep 2007 21:32:55 +0200
Dear XOTcl Community,
XOTcl 1.5.5 is available. The main change is to achieve binary
between Tcl 8.5 and XOTcl compiled with Tcl 8.4. This is essential achieved
through a small emulation layer based on C-structures that will be available
in Tcl 8.5.
Announcing XOTcl 1.5.5
We are pleased to announce the availability of XOTcl 1.5.5.
Major changes relative to 1.5.4 are:
* Improved binary compatibility:
It is now possible to load XOTcl compiled for Tcl 8.4
into a tclsh8.5 (again, substantial change).
One can now test now 4 versions:
a) a native version for Tcl 8.4 (without compatibility layer)
b) a native version for Tcl 8.5
c) a version compiled for Tcl 8.4 with compatibility layer in tclsh8.4
d) a version compiled for Tcl 8.4 with compatibility layer in tclsh8.5
Tests showed that the overhead is for the compatibility
layer is between 1.1% and 2.3%, the difference between
tcl8.5 and tcl8.4 is much larger.
The forward compatibility behavior behavior can be turned off by setting
FORWARD_COMPATIBLE to 0 during compilation (xotcl.h) to get
a small performance improvement.
For more details about the changes, please consult the ChangeLog and
General and more detailed information about XOTcl and its components
can be found at http://www.xotcl.org
Received on Tue Sep 18 2007 - 21:32:44 CEST
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