build: change libuv to point at joyent's repo and make unpatched build libuv work on mingw

Author: olsonjeffery

.gitmodules

@@ -3,4 +3,4 @@
 	url = git://github.com/brson/llvm.git
 [submodule "src/libuv"]
 	path = src/libuv
-	url = git://github.com/olsonjeffery/libuv.git
+	url = git://github.com/joyent/libuv.git

mk/platform.mk

@@ -198,7 +198,7 @@ else
 endif
   CFG_RUN_TARG=$(call CFG_RUN,$(HLIB$(1)_H_$(CFG_HOST_TRIPLE)),$(2))
   CFG_RUN_TEST=$(call CFG_RUN,$(call CFG_TESTLIB,$(1),$(3)),$(1))
-  CFG_LIBUV_LINK_FLAGS=-lWs2_32
+  CFG_LIBUV_LINK_FLAGS=-lWs2_32 -lpsapi -liphlpapi
 
   ifndef CFG_ENABLE_MINGW_CROSS
     CFG_PATH_MUNGE := $(strip perl -i.bak -p             \
@@ -322,4 +322,4 @@ define CFG_MAKE_ASSEMBLER
 endef
 
 $(foreach target,$(CFG_TARGET_TRIPLES),\
-  $(eval $(call CFG_MAKE_ASSEMBLER,$(target))))
+  $(eval $(call CFG_MAKE_ASSEMBLER,$(target))))