diff --git a/make/platform.mk b/make/platform.mk
index b6d6cb0b..6afd12f9 100644
--- a/make/platform.mk
+++ b/make/platform.mk
@@ -35,6 +35,13 @@ ifeq ($(HOST_TUPLE),)
   HOST_OS             := $(word 3,$(HOST_TUPLE_WORDS))
   HOST_ABI            := $(word 4,$(HOST_TUPLE_WORDS))
   HOST_TRIPLET        := $(HOST_ARCH)-$(HOST_OS)-$(HOST_ABI)
+else
+  HOST_TUPLE_WORDS    := $(subst -, ,$(HOST_TUPLE))
+  HOST_ARCH           := $(word 1,$(HOST_TUPLE_WORDS))
+  HOST_VENDOR         := $(word 2,$(HOST_TUPLE_WORDS))
+  HOST_OS             := $(word 3,$(HOST_TUPLE_WORDS))
+  HOST_ABI            := $(word 4,$(HOST_TUPLE_WORDS))
+  HOST_TRIPLET        := $(HOST_ARCH)-$(HOST_OS)-$(HOST_ABI)
 endif
 
 ifneq ($(TARGET_TUPLE),)