# CFLAGS and OPTIMIZE are different so you can add extra CFLAGS without
# disabling default optimizations
-[ -z "$CFLAGS" ] && CFLAGS="-Wall -Wundef -Wno-char-subscripts"
+[ -z "$CFLAGS" ] && CFLAGS="-Wall -Wundef -Wno-char-subscripts -Wno-string-plus-int"
# Required for our expected ABI. we're 8-bit clean thus "char" must be unsigned.
CFLAGS="$CFLAGS -funsigned-char"
[ -z "$OPTIMIZE" ] && OPTIMIZE="-Os -ffunction-sections -fdata-sections -fno-asynchronous-unwind-tables"