build: add link flag for freebsd libuv build

Author: olsonjeffery

mk/platform.mk

@@ -46,6 +46,7 @@ ifneq ($(findstring freebsd,$(CFG_OSTYPE)),)
   CFG_GCCISH_CFLAGS_x86_64 += -m64
   CFG_GCCISH_LINK_FLAGS_x86_64 += -m64
   CFG_UNIXY := 1
+  CFG_FBSD := 1
   CFG_LDENV := LD_LIBRARY_PATH
   CFG_DEF_SUFFIX := .bsd.def
   CFG_INSTALL_NAME =
@@ -147,6 +148,9 @@ ifdef CFG_UNIXY
   CFG_RUN_TARG=$(call CFG_RUN,,$(2))
   CFG_RUN_TEST=$(call CFG_RUN,,$(CFG_VALGRIND) $(1))
   CFG_LIBUV_LINK_FLAGS=-lpthread
+  ifdef CFG_FBSD
+    CFG_LIBUV_LINK_FLAGS=-lpthread -lkvm
+  endif
 
   ifdef CFG_ENABLE_MINGW_CROSS
     CFG_WINDOWSY := 1