gcc accepting input from stdin?

[Erik Leunissen <e.leunissen@xxxxxxxxx>]

The gcc release that I'm currently using (3.3.1) accepts input from 
stdin for the compilation step, i.e. the following command produces an 
object file:

   echo "int main(void) {return 0;}" | gcc -xc -c -


Can anybody tell me the gcc release into which this feature was introduced?


Thanks,

Erik Leunissen
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