[Discuss] really odd GCC bug? under Ubuntu

[alex at pennace.org (Alex Pennace)]

On Tue, May 14, 2013 at 02:01:27PM -0400, Bill Bogstad wrote:
> Actually, I was expecting that GCC would treat EACCES and ENONET
> identically.  i.e. Silently keep looking for the requisite files and
> only failing
> if it couldn't find them in its list of directories.  I admit that I
> wasn't actually
> thinking at the time of the exact value of errno.   I was thinking more
> conceptually, but I still feel that this is bad behavior on the part of GCC. 

gcc should be thought of as right in this case. ENOENT is the
operating system's way of saying "there really isn't anything here,"
whereas EACCES variously means "this path may or may not be there, but
we won't tell you." gcc rightfully considers ENOENT as definitively
meaning the include files aren't present and it should carry on, but
it can't reach that conclusion with EACCES.

An alternative suggestion to the problem of hiding /usr/local
temporarily would be mounting a tmpfs on top of /usr/local.

-- 
Alex Pennace, alex at pennace.org, http://osiris.978.org/~alex/