Add error for "used but no driver"

1 files changed, 1 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index da6d17e..e30f1e8 100644
--- a/Makefile
+++ b/Makefile
@@ -11,7 +11,7 @@ FLASH_OPTS ?=
 # as yosys needs to have -o specified for this to work
 # but I specify the command manually
 # also, yosys inserts /tmp/ files which makes this useless.
-YOSYS_OPTS ?= -Q -q -l $(PROGRAM).yosys.log -e "conflict"
+YOSYS_OPTS ?= -Q -q -l $(PROGRAM).yosys.log -e "conflict|is used but has no driver"
 DEPS := $(wildcard *.dep)
 
 # this is "bad", as it runs the deps target every time