Re: Libtool 1.5.8 problems on OSX: ${wl} evaluation [#9382]

[Gary V. Vaughan]

Hi Peter,

Thanks for the fast response.

Peter O'Gorman wrote:
> > > A secondary issue is that changing this to
> > > "-Wl,-flat_namespace -Wl,-undefined -Wl,suppress" does not work,
> > > and the string passed to g++ must be
> > >  "-Wl,-flat_namespace -Wl,-undefined suppress"
>
> While I have seen this issue before, I have never seen a failure 
> associated with it. Is sleepycat seeing an actual failure?

Isn't the problem report -Wl,suppress vs suppress, rather than the wonky
${wl} in the $show?

> Here is what I get with sh -x and libtool's tagdemo with -no-undefined 
> removed from the makefile:
> ++ cmd=g++ -dynamiclib -single_module ${wl}-flat_namespace 
> ${wl}-undefined ${wl}suppress -o .libs/libbaz.0.0.0.dylib  .libs/baz.o 
> .libs/libbaz.lax/libfoo.a/foo.o    -install_name 
> /Users/peter/libtool-1.5.10/tests/_inst/lib/libbaz.0.dylib 
> -Wl,-compatibility_version -Wl,1 -Wl,-current_version -Wl,1.0
> + echo 'g++ -dynamiclib -single_module ${wl}-flat_namespace 
> ${wl}-undefined ${wl}suppress -o .libs/libbaz.0.0.0.dylib  .libs/baz.o 
> .libs/libbaz.lax/libfoo.a/foo.o    -install_name 
> /Users/peter/libtool-1.5.10/tests/_inst/lib/libbaz.0.dylib 
> -Wl,-compatibility_version -Wl,1 -Wl,-current_version -Wl,1.0'
> g++ -dynamiclib -single_module ${wl}-flat_namespace ${wl}-undefined 
> ${wl}suppress -o .libs/libbaz.0.0.0.dylib  .libs/baz.o 
> .libs/libbaz.lax/libfoo.a/foo.o    -install_name 
> /Users/peter/libtool-1.5.10/tests/_inst/lib/libbaz.0.dylib 
> -Wl,-compatibility_version -Wl,1 -Wl,-current_version -Wl,1.0
> + eval 'g++ -dynamiclib -single_module ${wl}-flat_namespace 
> ${wl}-undefined ${wl}suppress -o .libs/libbaz.0.0.0.dylib  .libs/baz.o 
> .libs/libbaz.lax/libfoo.a/foo.o    -install_name 
> /Users/peter/libtool-1.5.10/tests/_inst/lib/libbaz.0.dylib 
> -Wl,-compatibility_version -Wl,1 -Wl,-current_version -Wl,1.0'
> ++ g++ -dynamiclib -single_module -Wl,-flat_namespace -Wl,-undefined 
> -Wl,suppress -o .libs/libbaz.0.0.0.dylib .libs/baz.o 
> .libs/libbaz.lax/libfoo.a/foo.o -install_name 
> /Users/peter/libtool-1.5.10/tests/_inst/lib/libbaz.0.dylib 
> -Wl,-compatibility_version -Wl,1 -Wl,-current_version -Wl,1.0
>
> As you can see the ${wl} is printed with the $echo, but when g++ is 
> actually called, it is properly eval'ed.

Ah, yes I have seen this too, now that you explain it.  We need to 
figure out which $show is responsible, and make it into an eval $show...

> Gary, we need some tests without -no-undefined on platforms which 
> support generating shared libraries with undefined symbols.

I'll submit a patch proposal presently.

Cheers,
        Gary.
--
Gary V. Vaughan      ())_.  address@hidden,gnu.org}
Research Scientist   ( '/   http://tkd.kicks-ass.net
GNU Hacker           / )=   http://www.gnu.org/software/libtool
Technical Author   `(_~)_   http://sources.redhat.com/autobook

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