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The libobjc included with gcc does not have a thread-safe implementation of the initialize method. This means that any classes not already used may be incorrectly initialised, potentially causing strange behaviors and crashes.
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To put this into context, the runtime bug has been knoown for several years and only rarely causes problems ... the easy workaround being to ensure that any classes used by a new thread have already been used in the main thread before the new thread starts.
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If you are worried, please build/run GNUstep with a runtime which supports the +initialize method. The GNUstep stable runtime (libobjc) and experimental runtime (libobjc2), available from the GNUstep website and subversion repository, should both work.
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To disable this warning (eg. for an application which does not suffer any problems caused by this runtime bug), please set the GSSilenceInitializeWarning user default to YES."); |