Re: darwin patch

[Robert Boehne]

Peter,

I'm looking into the question about the paths, and I think there are
good ideas in this patch.  You were right however about #5 on your
list, the change to ltmain.in.  If ranlib needs to be run, it needs
to be run by having it set in old_archive_cmds, so it would (should?)
have
already been in concat_cmds if it were set.  If it isn't that's probably
where we should look.  I'll post when I've got more to say, like maybe
"commit". ;)

Thanks,

Robert

Peter O'Gorman wrote:
> 
> Hi, here is my proposed patch for, I hope, improved darwin support.
> 
> 1) always append /lib /usr/lib and /usr/local/lib to the search path,
> done this way so that even if apple changes the output of
> -print-search-dirs yet again, libtool will look in the same places as
> ld.
> 
> 2) add C specific archive commands so not everything is single module
> bind_at_load
> 
> 3) add support for archive_expsym_commands
> 
> 4) enable_shared_with_static_runtimes=yes to stop complaints about
> static only libgcc and libstdc++
> 
> 5) (and you might not want to apply this) make the incremental linking
> run ranlib
> 
> There are other things I'd like to do:
> 
> 1) add support for -dylib_file so that relinking in unnecessary on
> darwin. I have no idea how to do this cleanly, libtool seems to expect
> the dir to be coded into the binary, but on darwin the whole path
> including the libname is encoded. To link against and uninstalled
> shared library, I'd like to add -dylib_file
> libfoo.1.dylib:/path/to/build/dir/libfoo.1.dylib somewhere in the link
> commands. No idea how to do this cleanly.
> 
> 2) add twolevel_namespace support
> 
> 3) remove -bind_at_load from ltmain.in for darwin. First I need to
> figure out how to add it only when new libs/executables are linked
> against c++ shared libraries, perhaps by writing something to the
> dependency_libs of the c++ library when it is built?
> 
> Then, here is the patch, inline and attached, if you add it please use
> address@hidden as the ChangeLog committer.
> 
> Thanks,
> Peter
> 
> Index: ltmain.in
> ===================================================================
> RCS file: /cvsroot/libtool/libtool/ltmain.in,v
> retrieving revision 1.322
> diff -u -d -b -w -r1.322 ltmain.in
> --- ltmain.in   29 Jan 2003 04:53:18 -0000      1.322
> +++ ltmain.in   9 Feb 2003 15:31:19 -0000
> @@ -4866,7 +4866,7 @@
>           RANLIB=$save_RANLIB
>           oldobjs=$objlist
>           if test "X$oldobjs" = "X" ; then
> -           eval cmds=\"\$concat_cmds\"
> +           eval cmds=\"\$concat_cmds~$RANLIB $oldlib\"
>           else
>             eval cmds=\"\$concat_cmds~$old_archive_cmds\"
>           fi
> 
>   ------------------------------------------------------------------------
>                      Name: darwin.diff.gz
>    darwin.diff.gz    Type: application/x-gzip
>                  Encoding: base64
> 
>   ------------------------------------------------------------------------
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