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Date: Fri, 11 Jan 2002 14:33:39 +0100
From: "Gerrit P. Haase" <freeweb AT nyckelpiga DOT de>
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Reply-To: "Gerrit P. Haase" <freeweb AT nyckelpiga DOT de>
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Message-ID: <40100646702.20020111143339@familiehaase.de>
To: cygwin AT cygwin DOT com
Subject: gcc/ld problem
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Hallo Cygwinners,

I'm trying to link a library with gcc -shared plus some ld options:

gcc -shared -o Zlib.dll -Wl,--out-implib=libZlib.dll.a -Wl,--output-def libZlib.def -Wl,--export-all-symbols -Wl,--enable-auto-import \
-L/usr/local/lib Zlib.o  /usr/local/lib/perl5/5.7.2/cygwin-multi-64int/CORE/libperl.dll.a -L/usr/local/lib -lz
gcc: libZlib.def: No such file or directory

Now I'm getting this error.
I thought -Wl,--output-def name.def is the option to tell ld that it
should create this .def file, now I'm confused, why does it tell me
No such file or directory?

From the ld --help output:
...
  --out-implib <file>                Generate import library
  --output-def <file>                Generate a .DEF file for the built DLL
...

And the .info says:
`--output-def FILE'
      The linker will create the file FILE which will contain a DEF file
      corresponding to the DLL the linker is generating.  This DEF file
      (which should be called `*.def') may be used to create an import
      library with `dlltool' or may be used as a reference to
      automatically or implicitly exported symbols.

      
It works well if I skip this flag.
It works well if I do a:
$ touch libZlib.def
before running gcc -shared.

Is this the expected way?
Do I have to create an empty .def file before linking?
Or is something with my setup broken?

Do I need .def files?


Gerrit
-- 
=^..^=


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