gcc accepting input from stdin?

[Nelson H. F. Beebe]

Erik Leunissen <e.leunissen@hccnet.nl> asks on Sat, 17 Dec 2005 17:11:23
+0100 about which version of gcc introduced the feature that

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

produces a ./-.o file.

The oldest version that I have running is 2.95.3 (26-Apr-2001);
it acts that way (which was a surprise to me).

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