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

[Peter O'Gorman]

Hi,
[sleepycat support removed, libtool added]

> > 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?

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.

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

Peter
--
Peter O'Gorman - http://www.pogma.com