nnesse/minwin-gcc-5-2: A patched gcc 5.2 enabling a new 'minwin' target that does not link to the Microsoft C library. @ f5de7b477e9df391b1cc268c485030e7cdcd1f3a

Niels Nesse eb72d50f44 Import gcc 5.2.0 from tarball		9 lat temu
..
ioutil	eb72d50f44 Import gcc 5.2.0 from tarball	9 lat temu
io.go	eb72d50f44 Import gcc 5.2.0 from tarball	9 lat temu
io_test.go	eb72d50f44 Import gcc 5.2.0 from tarball	9 lat temu
multi.go	eb72d50f44 Import gcc 5.2.0 from tarball	9 lat temu
multi_test.go	eb72d50f44 Import gcc 5.2.0 from tarball	9 lat temu
pipe.go	eb72d50f44 Import gcc 5.2.0 from tarball	9 lat temu
pipe_test.go	eb72d50f44 Import gcc 5.2.0 from tarball	9 lat temu