[Tcl-bugs] [ tktoolkit-Bugs-3541305 ] Xfree/Xsync... shoulc not be macros

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Bugs item #3541305, was opened at 2012-07-07 21:26
Message generated for change (Tracker Item Submitted) made by nijtmans
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Jan Nijtmans (nijtmans)
Assigned to: Nobody/Anonymous (nobody)
Summary: Xfree/Xsync... shoulc not be macros

Initial Comment:
In order to allow win32 extensions that use
Xfree/Xsync ... to run under Cygwin as well
(See presentation Eurotcl 2012), they
should not be macro's but functions.

In Tk 8.6 that's already done, but in 8.4/8.5
it's possible to do the same thing, only the
macro should detect whether the related
stub functions are available or not.
(Tk8.5.12+ has it, but not earlier versions)

The stub entry tkIntStubsPtr->tkBindDeadWindow
can be used for that. If it's NULL, then
the stub functions are available (This
stub entry is purposely removed on Cygwin
8.4/8.5, and completely in 8.6, just because
it serves no purpose)

Solution:
#ifdef USE_TK_STUBS
#define XFree(data) (tkIntStubsPtr->tkBindDeadWindow? ((data)? (ckfree((char *) (data)), 0): 0): tkIntXlibStubsPtr->xFree(data))
#else
.... original definition
#elseif

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