[Bug libobjc/23215] New: libobjc doesn't work on windows.

[Bug libobjc/23215] New: libobjc doesn't work on windows.

[jeremy at deadbeef dot com]

2 problems:

I noticed that thr-win32.c has no implementation, only stubs.  There is a 
version that has implementation at http://savannah.gnu.org/cgi-
bin/viewcvs/gnustep/gnustep/dev-libs/libobjc/thr-win32.c?rev=HEAD&content-
type=text/vnd.viewcvs-markup
That is not my code, and I am not the copyright holder, so I don't know what 
you need to do to get this into gcc.

second problem, libobjc isn't built as a dll on windows, and it needs to be so 
that other dlls can use objective-c.

Solve those two problems, and objc on win32 will be perfect!

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           Summary: libobjc doesn't work on windows.
           Product: gcc
           Version: 3.4.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: libobjc
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: jeremy at deadbeef dot com
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: mingw32
  GCC host triplet: mingw32
GCC target triplet: mingw32


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23215

[Bug libobjc/23215] libobjc doesn't work on windows.

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-08-03 13:57 -------
libobjc inside GCC does not use thr-*.c (except for thr-objc.c which is just a wrapper around the gthr-
*.h files) at all but gthr-win32.h inside the gcc directory which is also used by libstdc++.

Did you try --enable-shared as I think building shared libraries on win32 is disabled by default?
And if you want to report a bug about that, well that is really a libtool bug.

So I think this can be considered a non bug if --enabled-shared works for you.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |minor


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23215

[Bug libobjc/23215] libobjc doesn't work on windows.

[jeremy at deadbeef dot com]

------- Additional Comments From jeremy at deadbeef dot com  2005-08-03 14:17 -------
Subject: Re:  libobjc doesn't work on windows.

I did try --enable-shared, and it still did not compile as a dll.  Either 
the configure in the CVS repos is not up to date and needs to be regenerated 
from configure.ac or else something else is wrong.

----- Original Message ----- 
From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
To: <jeremy@deadbeef.com>
Sent: Wednesday, August 03, 2005 8:57 AM
Subject: [Bug libobjc/23215] libobjc doesn't work on windows.


>
> ------- Additional Comments From pinskia at gcc dot gnu dot org 
> 2005-08-03 13:57 -------
> libobjc inside GCC does not use thr-*.c (except for thr-objc.c which is 
> just a wrapper around the gthr-
> *.h files) at all but gthr-win32.h inside the gcc directory which is also 
> used by libstdc++.
>
> Did you try --enable-shared as I think building shared libraries on win32 
> is disabled by default?
> And if you want to report a bug about that, well that is really a libtool 
> bug.
>
> So I think this can be considered a non bug if --enabled-shared works for 
> you.
>
> -- 
>           What    |Removed                     |Added
> ----------------------------------------------------------------------------
>           Severity|normal                      |minor
>
>
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23215
>
> ------- You are receiving this mail because: -------
> You reported the bug, or are watching the reporter.
> 



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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23215

[Bug libobjc/23215] libobjc doesn't work on windows.

[jeremy at deadbeef dot com]

------- Additional Comments From jeremy at deadbeef dot com  2005-08-03 17:32 -------
Sorry that this is not a nice diff, but I am working from unclean sources 
(mingw 3.4.4 snapshot source)

It appears that libobjc/Makefile.in needs a target like this:
libobjc.la: $(OBJS)
	$(LIBTOOL_LINK) $(CC) -o $@ $(OBJS) \
		-rpath $(glibcpp_toolexeclibdir) \
		-version-info $(LIBOBJC_VERSION) -no-undefined

And then libtool has a bug also, in archive_expsym_cmds it checks to see if 
the first line of the def file has EXPORTS= in it, but in export_symbols_cmds 
it removed the EXPORTS line using sed.

Then --enable-shared might work.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23215

[Bug libobjc/23215] libobjc doesn't work on windows.

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-08-03 17:35 -------
libobjc already have that target:
libobjc$(libext).la: $(OBJS)
        $(LIBTOOL_LINK) $(CC) -o $@ $(OBJS) \
                -rpath $(toolexeclibdir) \
                -version-info $(LIBOBJC_VERSION)

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23215

[Bug libobjc/23215] libobjc doesn't work on windows.

[jeremy at deadbeef dot com]

------- Additional Comments From jeremy at deadbeef dot com  2005-08-03 20:05 -------
Sorry, the key was the -no-undefined bit.

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23215