Picking up include directories automatically

[Mikey]

*cpp:
-I /some/include/dir

H-i386-cygwin32/lib/gcc-lib/i386-cygwin32/version-XXX/specs
 ----
From: Jon Thackray <jont@harlequin.co.uk>
To: gnu-win32@cygnus.com
Date: Friday, May 09, 1997 5:12 PM
Subject: Picking up include directories automatically

>Is there some way to persuade cpp to look in some include directories
>automatically? The old one used to look at the value of the include
>environment varaible, the latest (b17.1) appears to ignore this.
>Putting these directories on the command line is not an option, as
>they vary from machine to machine.
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