On Mon, 10 Apr 2006, Brian Dessent wrote:
> Igor Peshansky wrote:
>
> > If GetCommandLine lives in libcygwin.a, then programs linked on older
> > versions of Cygwin will not link that function in, and thus won't work
> > with the new DLL. Programs linking with the new version of Cygwin will
> > have that function, but due to API changes, may not work with older DLLs.
> > Or am I missing something?
>
> It should work out like this:
>
> Linked against <1.5.20, Run against >=1.5.19:
> calls kernel32's GCL() and won't work
>
> Linked against <1.5.20, Run against <1.5.19:
> calls kernel32's GCL() but the win environment exists, success
>
> Linked against >=1.5.20, Run against any version:
> calls libcygwin's static GCL(), which works in any circumstance
I'm worried about the case
Linked against >=1.5.20, Run against <=1.5.19:
calls libcygwin's static GCL, which works, but fails because 1.5.20
(or 1.5.21, etc) has an extra API function that now gets invoked by
the code, but is missing from 1.5.19 and earlier -- BOOM.
IOW, the infamous "Procedure entry point ... couldn't be found" popup.
Igor
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