SysV Ipc shm revisited...A new solution

[Ralf Habacker]

>Robert Collins wrote:

> Already provided. What will happen when the 64 bit key is exported is
> that fresh cygipc linked programs will fail, but existing programs will
> still work correctly. If something like ipcdaemon2.exe exists - OR -
> cygipc is re-released as a 64-bit version, then new links will succeed
> (but at the possible cost of breaking old binaries).
>
Why must this be ? Could not the released 64-bit version only use the most
significant long word of key_t, so that it is compatible to the old binaries and
can use the 64 bit key_t definition ?

Ralf


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