class/libtool: Export libtool_bindir variable
class/libtool: Export libtool_bindir variable

The libtool_bindir variable should be used with the '-bindir' argument
of libtool link command to fix problems with windows dll's ending up
in $libdir/../bin which might be the same as $sharedlibdir.

Signed-off-by: Esben Haabendal <c5ba3f1141bb30a64dd6c7e6726a53a85adc9442@prevas.dk>

sknsean/core,sknsean/core,sknsean/core,hundeboll/core,sknsean/core,hundeboll/core,sknsean/core,hundeboll/core,hundeboll/core,diorcety/oe-lite-core,diorcety/oe-lite-core