Index: share/mk/bsd.cpu.mk
===================================================================
--- share/mk/bsd.cpu.mk
+++ share/mk/bsd.cpu.mk
@@ -368,10 +368,8 @@
 .if ${MACHINE_CPUARCH} == "riscv"
 .if ${MACHINE_ARCH:Mriscv*sf}
 CFLAGS += -march=rv64imac -mabi=lp64
-ACFLAGS += -march=rv64imac -mabi=lp64
 .else
 CFLAGS += -march=rv64imafdc -mabi=lp64d
-ACFLAGS += -march=rv64imafdc -mabi=lp64d
 .endif
 .endif