include files

[Martin Sebor]

On 03/24/2016 10:54 AM, Bob Gardenier wrote:
> Hallo,
> This is the second mail on the same subject. Eason: the first mail contained non plain text.
> Now, I have copied the same information by hand:
>
> In all my source files the # include statement produces the same error (with different names):
>
> /ONTW/C/GEN/SRC_F/DB.C (or other names)  : FATAL ERROR: DB.IMP: FILE NOT FOUND
>
> As far as I know, I have not changed anything in
> - the include statements
> - in the UNIX scripts
> - the CPATH variable\
>
> I have two questions:
> - Can the compiler publish the search paths, being used. and how?

Compiling a file with the -v option shows the preprocessor search
path.  Look for the following lines in the output:

   #include "..." search starts here:
   #include <...> search starts here:

As Jonathan mentioned, though, the message you copied above doesn't
match the error GCC prints for a missing file on common (UNIX-like)
systems.  GCC usually prints something like:

     x.c:2:21: fatal error: foo/bar.h: No such file or directory

The "No such file or directory" is the output of strerror(errno),
which is the usual Linux/UNIX string corresponding to the ENOENT
<errno.h> constant.

The capitalization and the "FILE NOT FOUND" string make it look
like the output of some other tool on some non-Linux/UNIX system.

Martin

PS If you capitalized the strings for emphasis and it's actually
in lowercase then the output matches what Clang prints.