+# Determine host architecture
+include include/host_arch.h
+MK_ARCH="${shell uname -m}"
+unexport HOST_ARCH
+ifeq ("x86_64", $(MK_ARCH))
+ export HOST_ARCH=$(HOST_ARCH_X86_64)
+else ifneq (,$(findstring $(MK_ARCH), "i386" "i486" "i586" "i686"))
+ export HOST_ARCH=$(HOST_ARCH_X86)
+else ifneq (,$(findstring $(MK_ARCH), "aarch64" "armv8l"))
+ export HOST_ARCH=$(HOST_ARCH_AARCH64)
+else ifeq ("armv7l", $(MK_ARCH))
+ export HOST_ARCH=$(HOST_ARCH_ARM)
+else ifeq ("riscv32", $(MK_ARCH))
+ export HOST_ARCH=$(HOST_ARCH_RISCV32)
+else ifeq ("riscv64", $(MK_ARCH))
+ export HOST_ARCH=$(HOST_ARCH_RISCV64)
+endif
+undefine MK_ARCH
+