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PING *objc, NeXT runtime, testsuite changes*


The current situation with Darwin/NeXT runtime testsuite errors for Darwin targets >= 9 is not helpful..
... there are a large number of non-informative errors present because the NeXT runtime and headers on Darwin9+ are at rev. 2 whilst the FSF implementation is at rev.0.


The following patches reduce these non-informative errors where possible - which hopefully, allows us to spot other issues.

Please could these be considered before we fork 4.5 so that improvements in the branch can also be more readily tracked?

In fact, the first two patches are not actually Darwin-specific - although they affect us most severely.

1/ target-supports for ObjC
http://gcc.gnu.org/ml/gcc-patches/2009-12/msg01021.html
2/ test trivial cases for each RUNTESTFLAGS iteration
http://gcc.gnu.org/ml/gcc-patches/2009-12/msg01027.html

3/ wrapper headers and target logic to remove non-informative error cruft from Darwin ObjC tests.
http://gcc.gnu.org/ml/gcc-patches/2009-12/msg01081.html


thanks,
Iain


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