[Bug bootstrap/18810] Operation not supported while installing 4.0.0 on apple-darmin-7.6.0.

[peter at pogma dot com]

------- Additional Comments From peter at pogma dot com  2005-02-10 03:49 -------
I filed a radar that /dev/null shouldn't be unlinkable. But gcc should probably avoid '-o /dev/null', it is 
just used to check if -fvisibility=hidden is available. There must either be another way to do that check 
or use the temp file method.

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18810