040000 tree c3b4e1b71c611f58042395c9b55d974cc6352088	Darwin-gcc3
040000 tree dd08e22e13cc3862d3bb61a855eb1c629bfb6b8d	Linux_x86-gcc3
040000 tree 195a02840309e9e77d9968fd3f670591fa678a73	Linux_x86_64-gcc3
040000 tree 84ab14a7dcd37f3cbc548fce94711b8aa14771d6	WINNT_x86-msvc