Re: [jamboost] Re: Kylix support

From: Felix E. Klee (felix.klee.jamboost_at_[hidden])
Date: 2003-01-15 15:47:38

On Wednesday 15 January 2003 14:14, Vladimir Prus wrote:
> >>I'm not yet successfull installing Kylix, so I can't test your changes
> >> yet, but we'll integrate them asap anyway.
> >
> > It doesn't work for you? What system are you using. I'm using SuSE 8.1
> > and although the IDE isn't stable the command line tools run well.
>
> Debian Linux. It just grabs system includes. 

Hm, I don't know what you mean by that. People using RedHat 8 have been 
reporting problems with include files on the Kylix newsgroups. IIRC, a 
solution that works for some projects is to put /usr/include as the first 
item in the include path. Of course, this will cause header files in 
/usr/include to have a higher precedence than those provided by Kylix, and 
you might get new problems.

> >>BTW, how shared libraries work on Kylix? In the same was as for ordinary
> >>Linux/gcc?
> >
> > Well, first of all, as you might guess, the ABI of Kylix and gcc shared
> > C++ library is different. Maybe that will change with version 4 of Kylix
> > (I heard that the gcc 3.2 ABI is becoming some kind of standard). So,
> > Kylix shared libraries cannot be linked with ld. One needs to use Kylix
> > ilink instead (or maybe bc++, but I haven't tried that).
>
> Do the need any import libraries? Or just ".so" in the linker command line?

I'm not sure whether I understand what you mean. Here's an example for an 
ilink invocation to create a shared object:

ilink \ 
-Tpd -aa -D"" -x -Gn -v \
-Ltmp:/Net/hubble/Users/felix/local/lib/kylix3//lib/obj \
-L/Net/hubble/Users/felix/local/lib/kylix3//lib:/usr/lib:/lib \
-L/usr/X11R6/lib:/Net/hubble/Users/felix/local/lib/kylix3//bin \
borinitso.o foo.o, libfoo.so,, \
libborcrtl.so libborstl.so libborunwind.so libc.so libm.so libdl.so,, \
foo.res

The above lines come straight from Kylix. I created a new shared object 
project called foo and exported the corresponding Makefile using the 
"Project->Export Makefile" menu item in the IDE. Then I called "make -f 
foo.mak" and copied and beautified the lines showing the ilink invocation.

> > However, be aware that the Kylix
> > generated shared libraries somehow are "unstable" and cause runtime
> > errors and segfaults in applications using them. You'll find a couple of
> > bug reports concering these issues on Borland's Quality Central. Note
> > that, for whatever reason, static libraries seem to work flawlessly.
>
> Cool. We have shared linking by default :-) Anyway, if shared libs are
> unsuable, it's easier for us now.

Eh? Why is it easier then?

Felix

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