Question / Suggestion when gcc does not find a directory as -I parameter

[Harald Servat <harald.servat@xxxxxx>]

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Hello,

  I'm using

  gcc version 4.3.1 20080507 (prerelease) [gcc-4_3-branch revision
135036] (SUSE Linux)

  and I'm curious about the fact that gcc does not complain when giving
invalid directories as -I parameters, like:

# gcc -Wall -Wextra -I /nonexistent test.c
test.c:1: warning: unused parameter ‘argc’
test.c:1: warning: unused parameter ‘argv’

  Shouldn't gcc warn (or fail) about the inexistent directory?

Regards.
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