Re: help for a newbie C Programmer

["Jag" <Jagjit at ntlworld dot com>]

Hi Gerrit,

I tried that, but I am still getting the following error.

$ gcc -shared -o
libbridge.dll -Wl,--out-implib=libbridge.dll.a -Wl,--export-al
l-symbols -Wl,--enable-auto-import -Wl,--whole-archive bridge.o nwutil.o
jagsoc
ket.o     -Wl,--no-whole-archive
Creating library file: libbridge.dll.a
nwutil.o(.text+0x57):nwutil.c: undefined reference to `_h_nerr'
nwutil.o(.text+0x63):nwutil.c: undefined reference to `_h_errlist'
collect2: ld returned 1 exit status

Any idea what package is h_nerr and h_errlist are defined in?

Jag
----- Original Message -----
From: "Gerrit P. Haase" <gp@familiehaase.de>
To: "Jag" <Jagjit@ntlworld.com>
Cc: <cygwin@cygwin.com>
Sent: Wednesday, August 13, 2003 2:08 PM
Subject: Re: help for a newbie C Programmer


> Hallo Jag,
>
> Am Mittwoch, 13. August 2003 um 12:57 schriebst du:
>
> > Hi,
>
> > I am trying to port some socket code from AIX onto unix.
>
> > When I try to link the code I get ' ld: cannot find -lsocket'
>
> > The line being executed is :
>
> > ld -dy -G -o libbridge.so bridge.o nwutil.o
> > jagsocket.o -Bstatic -lc -lsocket -lnsl
>
> > I have searched for socket.a and nsl.a in the cygwin directory but they
> > aren't there.
> > The makefile works on AIX and I was hoping it would be a straight
forward
> > compilation on windows 2k.
>
> > Can anyone please point me in the right direction !
>
> Use gcc to link. libc, libsocket and libnsl are all included in
> libcygwin which you don't need to propagate to the linker:
>
> gcc -shared -o libbridge.dll \
>     -Wl,--out-implib=libbridge.dll.a \
>     -Wl,--export-all-symbols \
>     -Wl,--enable-auto-import \
>     -Wl,--whole-archive \
>     bridge.o nwutil.o jagsocket.o \
>     -Wl,--no-whole-archive \
>     ${dependency_libs}
>
> where ${dependency_libs} may be any libraries your library is
> depending on (like -lstdc++ for C++ libraries).
>
> -Wl,--out-implib=libbridge.dll.a results in the import library which
> you can use to link your application against (with -L/path -lbridge).
>
>
> Gerrit
> --
> =^..^=
>
>
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