Re: Mixing BUILT_SOURCES, double quote include and separation ofsource and binary directory

[Bob Friesenhahn <bfriesen at simple dot dallas dot tx dot us>]

On Wed, 30 Mar 2005, Simon Perreault wrote:

> On March 30, 2005 10:44, Ralf Wildenhues wrote:
> > > #include "../include/inc.h"
> >
> > which is not portable, by the way (but I can see if you don't care about
> > that part of the world).
>
> Why do you say that? That code is being ported from Microsoft's compiler, and
> I guess that if it works there and here then it ought to be portable.

There are many meanings of the term "portable".  On one hand, the 
above include is not "portable" since the C standard does not address 
how to interpret it.  On the other, it is not "portable" since it 
depends on the source code residing in a relative directory to the 
header, and (possibly) even being compiled in that same directory.  If 
symbolic links are used to create part of the build tree, then it is 
likely that compilation will fail due to how symbolic links are used.

Bob
======================================
Bob Friesenhahn
bfriesen@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/