Re: Problem linking DDD under cygwin

[Andrew Gaylard]

Hi Michael,

Michael Ambrus wrote:
> Hi Steve, Mathias & Andy,
> I found your conversations at
> http://mail.gnu.org/archive/html/ddd/2003-10/msg00018.html
>
> I'm not a subscriber to this particular list and I couldn't find a way of
> posting this message without subscribing, so please pardon me for writing
> you directly.

No problem!

> Though I didn't recognize the particular problem  that Seve encountered I
> followed his steps and finally managed to build the package. And yes - it
> seems to work (without command line issue), and yes - it is large (16M), and
> yes - it was built without libipc (-lipc).

OK,  I've commented out the ipc library stuff in configure.ac,
so it should not appear in future releases.  This will help DDD to
build on Cygwin.  DDD-3.3.8 will be released soon.

> bash-2.05b$ ls -aldh /usr/local/bin/ddd.exe
> -rwxr-xr-x    1 mickey   None          16M Oct 13 20:37
> /usr/local/bin/ddd.exe
> bash-2.05b$
>
> However, I did note some things that could explain Mathias original problem
> description. After examining the following references, it seemed worth
> trying to back-grade gcc to an earlier version (gcc-3.2.3). From the build
> output Mathias sent, I could see that he also built with the newest gcc
> version.
>
> http://www.mail-archive.com/address@hidden/msg28965.html
> http://gcc.gnu.org/onlinedocs/gcc-3.3.1/gcc/C---Interface.html#C++%20Interfa
> ce
>
> This worked!
>
> I'm only guessing here, but it seems that the #pragma interface/ #pragma
> implementation are not binary compatible pre and post gcc-3.3. Furthermore
> I'm guessing that all libs in the Cygwin feeds are not consistently built
> (with the same gcc version). This could explain why "undefined reference to
> `__static_initialization_and_destruction_0(int, int)"  happens. (This was
> also my original problem - and possibly the only problem
>
> So to summarize - try this:
> * Upgrade your Cygwin installation (all of it)
> * Except gcc, which should be the next but newest (gcc-3.2.3)
>
> Good luck and please post a note on the list (if this works) for everyone
> that encounters the same problem. I any case, please let me know if any of
> this helped.

Thanks for your analysis of the problem.  I'm sure that this will help
all the Cygwin users out there.

> Michael Ambrus
> Real-time & embedded Software Specialist


Andrew.