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Provides the EMXCCompiler class, a subclass of UnixCCompiler that
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appears amenable to building extensions with GCC. Returns a tuple
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(status, details), where 'status' is one of the following constants:
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CONFIG_H_OK
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all is well, go ahead and compile
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CONFIG_H_NOTOK
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doesn't look good
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CONFIG_H_UNCERTAIN
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not sure -- unable to read pyconfig.h
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'details' is a human-readable string explaining the situation.
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Note there are two ways to conclude "OK": either 'sys.version' contains
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sa Try to find out the versions of gcc and ld.
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