some trouble with using gcc on SunOS

some trouble with using gcc on SunOS

[RAMBOZ H InfoEdpRsaVdf]

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HI!

We've just installed gcc 2.95 on a SunOS 5.6.
The compiler itself works well but infortunately we are unable to link the
.o file with a .a.
The trouble is it can't find a symbol and no output file is generated.
We've been verifying that the missing symbol is present in the .a file. 

Here is a copy of the used comands:

scedev:/export/home/herve/sources> gcc  -ltngdt envoi_simple.c
Undefined                       first referenced
 symbol                             in file
TNGDT_Server_Connect                /var/tmp/ccUUQ9VP.o
ld: fatal: Symbol referencing errors. No output written to a.out
collect2: ld returned 1 exit status
scedev:/export/home/herve/sources> echo $LD_LIBRARY_PATH

:/maia/maia_prd/tng/tngdts/lib:/usr/local/CAlib:/usr/ccs/lib:usr/lib:/usr/dt
/lib
scedev:/export/home/herve/sources> dump -g
/maia/maia_prd/tng/tngdts/lib/*|grep TNGDT_Server_Connect

192442  TNGDT_Server_Connect

TNGDT_Server_Connect is an int function out of an SDK API. So it may have
been compiled with an other compiler.

The same module has been tested on an other SunOs system with cc compiler
and it runs fairly.

Would you be kind enough to help us on this case?

Thanks a lot!


Hervé Ramboz 


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Re: some trouble with using gcc on SunOS

[Alexandre Oliva]

On Jun 22, 2001, RAMBOZ H InfoEdpRsaVdf <Herve.Ramboz@socgen.com> wrote:

> scedev:/export/home/herve/sources> gcc  -ltngdt envoi_simple.c

The order of arguments matters when linking.  This is not a GCC thing,
but a linker thing.  When the linker processes libtngdt, it doesn't
know /var/tmp/ccUUQ9VP.o (the temporary object file created from
envoi_simple.c) is going to need TNGDT_Server_Connect from the
library, so it doesn't bring this symbol in.  Then, when it gets to
the object file, it won't go back.  Reorder the flags and it should
work.

-- 
Alexandre Oliva   Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
Red Hat GCC Developer                  aoliva@{cygnus.com, redhat.com}
CS PhD student at IC-Unicamp        oliva@{lsd.ic.unicamp.br, gnu.org}
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