# Build rules
#--------------------------------------------------------------------
-RISCV_PREFIX ?= riscv64-unknown-linux-gnu-
+RISCV_PREFIX ?= riscv64-unknown-elf-
RISCV_GCC ?= $(RISCV_PREFIX)gcc
ENTROPY ?= -DENTROPY=$(shell echo $$$$)
RISCV_GCC_OPTS ?= $(ENTROPY) -static -mcmodel=medany -fvisibility=hidden -nostdlib -nostartfiles