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-E and stdin

To: <egcs-bugs at cygnus dot com>
Subject: -E and stdin
From: "Paul Forgey" <paulf at aphrodite dot com>
Date: Mon, 19 Oct 1998 02:43:00 -0700

I've noticed gcc doesn't like to read stdin with -E unless - is specified.
This breaks some makefiles assuming an older gcc -- why can't gcc check
isatty() before complaining about no source files?

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