firmware/ice40-riscv: Enable more build warnings
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Change-Id: I99fad45e3aa9accbacaf020b1f5f93aa4b1d4950
diff --git a/firmware/ice40-riscv/e1-tracer/Makefile b/firmware/ice40-riscv/e1-tracer/Makefile
index b190478..0c522a2 100644
--- a/firmware/ice40-riscv/e1-tracer/Makefile
+++ b/firmware/ice40-riscv/e1-tracer/Makefile
@@ -10,7 +10,7 @@
DFU_UTIL = dfu-util
BOARD_DEFINE=BOARD_$(shell echo $(BOARD) | tr a-z\- A-Z_)
-CFLAGS=-Wall -Os -march=rv32i -mabi=ilp32 -ffreestanding -flto -nostartfiles -fomit-frame-pointer -Wl,--gc-section --specs=nano.specs -D$(BOARD_DEFINE) -I. -I../common
+CFLAGS=-Wall -Wextra -Wno-unused -Os -march=rv32i -mabi=ilp32 -ffreestanding -flto -nostartfiles -fomit-frame-pointer -Wl,--gc-section --specs=nano.specs -D$(BOARD_DEFINE) -I. -I../common
NO2USB_FW_VERSION=0
include ../../../gateware/cores/no2usb/fw/fw.mk