🚀 go-pugleaf

Reading the gcc info pages I find:

`-I-'
     Any directories you specify with `-I' options before the `-I-'
     option are searched only for the case of `#include "FILE"'; they
     are not searched for `#include <FILE>'.

     If additional directories are specified with `-I' options after
     the `-I-', these directories are searched for all `#include'
     directives.  (Ordinarily *all* `-I' directories are used this way.)

     In addition, the `-I-' option inhibits the use of the current
     directory (where the current input file came from) as the first
     search directory for `#include "FILE"'.  There is no way to
     override this effect of `-I-'.  With `-I.' you can specify
     searching the directory which was current when the compiler was
     invoked.  That is not exactly the same as what the preprocessor
     does by default, but it is often satisfactory.

     `-I-' does not inhibit the use of the standard system directories
     for header files.  Thus, `-I-' and `-nostdinc' are independent.


I think I understand what this option does, but I don't quite
understand why one would want to do this. Is it just to save the
compiler's search time? Or is there some deeper meaning?


Thanks!

--
Edward Hartnett                 ejh@larry.gsfc.nasa.gov
* I don't speak for NASA or ARC, I just work for them! *
     Goddard Distributed Active Archive Center (DAAC)
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