Hi Josh,
first, compliments for writing an application and taking the time to
port it over on GNUstep. A screenshot running on it would be a nice
addition on the web-page too. Nice that you have done the effort of
providing GS makefiles and the extra effort!
I haven't built your app yet though.
Josh Freeman wrote:
I am at the moment trying to get it running on gcc with the gcc objc
runtime. I know this isn't the supported constellation, but I would like
to at least understand what features are missing in this setup.
PikoPixel's implementation of method-swizzling doesn't work with
the gcc runtime because the runtime's function, class_replaceMethod(),
behaves differently than on the objc2 or Apple runtimes. That's the
only issue I know of (though I didn't test much further on gcc after
finding it), so in theory, a reimplementation of method-swizzling (in
NSObject_PPUtilities_MethodSwizzling.m) that removed/reworked the
class_replaceMethod() calls could allow PP to use the gcc runtime.
Interesting. I thought at first that you were using much Obj-C 2.0 code
and ARC code, but then the webpage mentions 10.4 as supported Mac
version, so a target that in theory GNUstep and also the GCC runtime
should support well.
About everything which doesn't work of 10.4 should be *really* pretty
much a bug now. But stuff in the runtime is a bit more tricky.
I kept an internal list with brief, 1-to-2-line descriptions of
issues (now at about 17 items) that needs to be expanded into full bug
reports on savannah when there's time - I wrote one up so far:
http://savannah.gnu.org/bugs/?45442 . I'd be happy to send the raw
list to you - or post it to the developer mailing list - if that would
be useful.
Please do that. If you find the time to suggest a patch, it is always
welcome. If you find a similar bug report existing you may also extend
it instead of writing a new one.
Riccardo
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