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>>   return (exit(status), 0);

>>   if (L) exit(status);  /* test to avoid warnings of 'exit' x 'return' */
>>     return 0;

I have tested the previous two patches on the bunch of compilers
currently installed on my computer.
None of them produced a warning for both tricks.
The first one is probably better because it avoids an additional
useless test-and-jump.