🚀 go-pugleaf

I need to glue some routines written in C++ to a VAX/VMS BASIC program.
 Glue functions will interface between the C++ classes and the calling
BASIC program. The problem is that the linker does not recognize
symbols of the C++ routines, or anything compiled with the /PLUS_PLUS
qualifier.

As a test, I wrote a stub routine and compiled it using $
gcc/nocase_hack,
and it links just fine.  If I compile the same routine using 
$ gcc/nocase_hack/plus_plus, the link fails - the glue routine is now
undefined.

Is there a way to correct this or am I lacking some basic knowledge
here?

+-----------------+
|  Russ Salerno   |
| rsalerno@li.net |
+-----------------+

The C glue function stub:
-------------------------
int glue(int a, int b, int c) {

    return 999;
}


The VAX/VMS BASIC caller:
-------------------------
external long function glue(long, long, long)

declare long l$_test

l$_test = glue(1,2,3)
print l$_test

end

The problem:
------------
$ gcc/debug/noopt/nocase glue.c
$ lin test,glue
$ run test
 999
$ gcc/debug/noopt/nocase/plus glue.c
$ lin test,glue
%LINK-W-NUDFSYMS, 1 undefined symbol:
%LINK-I-UDFSYM,         GLUE
%LINK-W-USEUNDEF, undefined symbol GLUE referenced
        in psect $CODE offset %X00000036
        in module TEST$MAIN file DKA700:[RUSS]TEST.OBJ;9