For MSVC, 'using namespace whatever' doesn't help us to differentiate between ambiguo...
authorJohn Emmas <johne53@tiscali.co.uk>
Fri, 19 Aug 2016 09:21:26 +0000 (10:21 +0100)
committerJohn Emmas <johne53@tiscali.co.uk>
Fri, 19 Aug 2016 13:11:00 +0000 (14:11 +0100)
commit4ece16f3488d77a74ca8ed043ed086607a39eabb
tree9d0bd6c8254a9329056a0714a6046563eb426632
parenta0b117b9481a1a3091a6d0c1fe0deacf17e20529
For MSVC, 'using namespace whatever' doesn't help us to differentiate between ambiguous type names

so... given that 'Rectangle' is a type name that's commonly found in several different namespaces, we'll need to specify explicitly which one we want.
libs/gtkmm2ext/utils.cc