libtool does not supports -static-libgcc flag

[pancake]

There's a patch from cygwin people solving the issue here:

 http://www.mail-archive.com/address@hidden/msg99768.html

I would love to see that patch in mainstream.

The explanation of the problem is:

In OpenSolaris (for example) gcc generates code with -shared-libgcc by
default which results in a binary that depends on libgcc_s.so.1 which comes
with gcc. If you plan to redistribute a shared library that depends on it
you force all end users to install gcc as a dependency which is not
necessary.

The problem is that -{static|shared}-libgcc flag is a compiler flag that 
needs
to be passed to the compiler at linking time (not the linker) which is quite
inconsistent.. but ok, that's a gcc issue.

The surprise comes when you try to compile the shared library with libtool
instead of a single gcc line, it just eats the option and it is silently 
not passed
to the final gcc line.

Thanks

--pancake