how to build a dll that uses other dll's?

how to build a dll that uses other dll's?

[Dan Goldwater]

Hi!
I am trying to build a DLL which has function calls which must be
resolved into existing win32 DLL's.

Following the instructions for building a relocatable dll, i get an
output but each of the three ld steps reports all the undefined
references for the functions which are in the existing win32 dll's.  i
had to add the --noinhibit-exec option to ld so that it wouldn't delete
the output dll due to the errors.

when i build this project on solaris, the linker doesn't complain about
the undefined references, and they are resolved to appropriate existing
.so files at runtime.

is there some option i need to give ld so it knows i want to resolve the
references at runtime to the existing dll's?  or am i clueless?

thanks!
--
---------------------------------------------------------------------
Dan Goldwater     dgold@brown.edu
                  http://fatmac.ee.cornell.edu/~goldwada
---------------------------------------------------------------------


-
For help on using this list (especially unsubscribing), send a message to
"gnu-win32-request@cygnus.com" with one line of text: "help".

Re: how to build a dll that uses other dll's?

[Fergus Henderson]

Dan Goldwater, you wrote:
> I am trying to build a DLL which has function calls which must be
> resolved into existing win32 DLL's.
> 
> Following the instructions for building a relocatable dll, i get an
> output but each of the three ld steps reports all the undefined
> references for the functions which are in the existing win32 dll's.  i
> had to add the --noinhibit-exec option to ld so that it wouldn't delete
> the output dll due to the errors.

You need to build import libraries for the DLLs you want to link your
DLL with, and then you need to link against those import libraries
when creating your DLL.

> when i build this project on solaris, the linker doesn't complain about
> the undefined references, and they are resolved to appropriate existing
> .so files at runtime.

Yeah, ELF is much nicer than gnu-win32 DLLs...

-- 
Fergus Henderson <fjh@cs.mu.oz.au>   |  "I have always known that the pursuit
WWW: < http://www.cs.mu.oz.au/~fjh >   |  of excellence is a lethal habit"
PGP: finger fjh@128.250.37.3         |     -- the last words of T. S. Garp.
-
For help on using this list (especially unsubscribing), send a message to
"gnu-win32-request@cygnus.com" with one line of text: "help".