[Fwd: Strange behavior of preprocessor]

[Neil Booth]

Zack Weinberg wrote:-

> On Wed, Sep 26, 2001 at 04:13:27PM -0700, David Taylor wrote:
> > Hi -
> > 
> > "gcc -isystem.  -H test.c" produces the same output as  "gcc -H test.c", i.e.
> > it searches only system header directories:
> 
> You have to put a space between -isystem and its argument.  Yes, this
> is different from -I.  Read the manual.

Ah, my fault.  cpp0 accepts it without the space, but the driver
requires one.  Guess which one I'm more familiar with...

Neil.