diff --git a/sysinfo/host/native.mk b/sysinfo/host/native.mk
index b697893..97fcb14 100644
--- a/sysinfo/host/native.mk
+++ b/sysinfo/host/native.mk
@@ -4,3 +4,43 @@ CC 		= $(BUILD_CC)
 OS 		= $(BUILD_OS)
 HOST_BITS 	= $(BUILD_OS_BITS)
 HOST_UNDERSCORE = $(BUILD_OS_UNDERSCORE)
+
+ifeq ($(OS),linux)
+	ifeq ($(HOST_BITS),32)
+		ARCH = i386
+	else ifeq ($(HOST_BITS),64)
+		ARCH = x86_64
+	endif
+endif
+
+ifeq ($(OS),midipix)
+	ifeq ($(HOST_BITS),32)
+		ARCH = nt32
+	else ifeq ($(HOST_BITS),64)
+		ARCH = nt64
+	endif
+endif
+
+ifeq ($(OS),mingw)
+	ifeq ($(HOST_BITS),32)
+		ARCH = w32
+	else ifeq ($(HOST_BITS),64)
+		ARCH = w64
+	endif
+endif
+
+ifeq ($(OS),bsd)
+	ifeq ($(HOST_BITS),32)
+		ARCH = bsd32
+	else ifeq ($(HOST_BITS),64)
+		ARCH = bsd64
+	endif
+endif
+
+ifeq ($(OS),darwin)
+	ifeq ($(HOST_BITS),32)
+		ARCH = dw32
+	else ifeq ($(HOST_BITS),64)
+		ARCH = dw64
+	endif
+endif