Re: [rtl] C++ compiling problem

["Wayne E. Van Loon Sr." <wevl@pacifier.com>]

Are you using rtl.mk? If so, I think it defines CC as cc (at least in
v3) which I would guess spcifies a c compiler, not g++.
Wayne

David Hamilton wrote:
> 
> Thanks for the reply David.
> However, I still have a problem.
> 
> I tried compiling your examples/cpp program and it fails with the message...
> ...linux/inlude/asm/system.h:153: parse error before '::'
> 
> David
> 
> -----Original Message-----
> From: David Olofson [mailto:david.olofson@reologica.se]
> Sent: 10 October 2001 19:26
> To: rtl@fsmlabs.com
> Subject: Re: [rtl] C++ compiling problem
> 
> On Wednesday 10 October 2001 19:22, David Hamilton wrote:
> > I tried writing some simple apps in C++, and the compiler produces
> > errors. This can be re-produced by simply renaming the hello.c example
> > hello.cpp and trying to compile.
> > There is something about conflict between C and C++ linkage in linux
> > kernel headers.
> > Anybody got any ideas.
> > Is there a general problem developing RTLinux apps in C++ !???
> 
> You must tell the compiler that the kernel headers are written in C by
> putting 'extern "C" {...}' around the #include directives. (Or the C++
> compiler will assume that the function prototypes are to be interpreted
> as C++, which results in different symbol names and possibly even
> different calling conventions.)
> 
> //David Olofson --- Programmer, Reologica Instruments AB
> 
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