Re: Error when including openexr

[Danny Milosavljevic]

Hi Hartmut,

On Tue, 30 May 2017 16:48:38 +0200
Hartmut Goebel <address@hidden> wrote:

> /gnu/store/…-openexr-2.2.0/include/OpenEXR/ImfInt64.h:44:24:
> fatal error: ImathInt64.h: No such file or directory
> 
> but file …-openexr-2.2.0/include/OpenEXR/ImathInt64.h exists.
> 
> I discovered that OpenEXR/ImfInt64.h contains
> 
> #include "ImathInt64.h"
> #include "ImfNamespace.h"
> 
> Maybe this should be "OpenEXR/ImathInt64.h" (same for the other)?

I think not.  cpp (the C preprocessor) has no notion of modules and what it 
does is just process #include "xx" relative to the directory of the file it 
currently reads (the one containing the "#include" directive), no matter how it 
went there.  (If it can't find it then it will fallback to the #include <xx> 
handler - but I think that's bad form).

(If you wanted to specify the "OpenEXR/" you'd usually put 
/gnu/store/…-openexr-2.2.0/include into the include path and include it like 
this in OpenEXR/ImfInt64.h : #include <OpenEXR/ImathInt64.h> with the <>)

Strange error message, though.

Is that gcc?  Which version?