[SIP-devel] Fwd: Compiling SIP on Mac

[Ricardo F. <rf...@gm...>]

Hi, all,

Pierre Mathieu had managed to compile SIP under Macintosh.
He said he had to change a linker flag in Makefile.am
In the future we must automate this based on results of
the configure script.
--
Ricardo.


---------- Forwarded message ----------
From: Pierre Mathieu <ma...@i3...>
Date: Jun 21, 2005 4:47 AM
Subject: Re: Compiling SIP



Le 1 juin 05, =E0 07:02, Ricardo Fabbri a =E9crit :

> Hi Pierre,
>
> Did you use the configure script?
> if affirmative, send me the file config.log
>
>
> It could be, also, that your system deals differently than linux
> regarding shared libraries containing undefined symbols. The SIP
> library is made to load into scilab. So there are symbols that are
> _not_ defined in SIP but which will be defined when you load the lib
> into Scilab. These are exactly the symbols your linker is complaining
> about. So what you need is a flag to let undefined symbols exist,
> somehow. I don't know how to do this in MacOS. Maybe -no-undefined
> flag, I'm not sure.
>

Thank you for your response.
I didn't know the meaning of the  "-no-undefined  " modifier of the ld
command in the Makefile.am .

Although the compiler is gcc  on the Mac, ld is not the same as on
Linux.

To let undefined symbols at the link time, the option is then
"-undefined warning "  which transforms errors in warnings. On 10.3 it
can be used "-undefined dynamic_lookup ".

In any case it is working very well now.
I thank you again for your help and for you great work in SIP.

best regards

Pierre Mathieu