[Bug preprocessor/31186] -I/usr/include not taken into account

[vincent at vinc17 dot org]

------- Comment #4 from vincent at vinc17 dot org  2007-05-22 22:50 -------
(In reply to comment #3)
> My recollection is that the special -I behavior is there because
> the system headers have special non-warning properties.
> This situation doesn't apply to -L.

But this introduces an inconsistency, with the effect that the version of the
header and the version of the library do not match.

> Generally speaking this is not a good idea.  Usually people *want* their
> environment to influence configure, and usually if configure overrides this
> it means difficult to fix problems on weirder systems.

But configure does override the user's environment for non-system directories
(and even system directories concerning -L). That's not logical.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31186