+tclh:=$(firstword $(wildcard /usr/include/tcl8.*/tcl.h))
+tclversion:=$(patsubst /usr/include/tcl%/tcl.h,%,$(tclh))
+
+garch := $(shell dpkg-architecture -q DEB_HOST_GNU_TYPE)
+ifneq ($(garch),)
+
+libsubdir = /$(garch)
+
+ifeq ($(origin CC),default)
+export CC=$(garch)-gcc
+endif
+
+endif # $garch
+