-# This convenience library is solely to avoid compiler warnings
-# in its generated sources.
-librc_protocol_la_SOURCES = rc_protocol.c
-librc_protocol_la_CFLAGS = -Wall -Wno-unused
+# This convenience library is solely to compile its generated sources with
+# custom flags.
+librc_protocol_la_SOURCES = rc_protocol.c rc_protocol.h
+librc_protocol_la_CFLAGS = -Wall -Wno-unused -fno-strict-aliasing
+
+# Build the command lookup perfect hash code. The generated code has
+# lots of warnings so we must compile it in a separate mini-library.
+libcmds_la_SOURCES = cmds_gperf.c
+libcmds_la_CFLAGS =
+
+cmds_gperf.c: cmds_gperf.gperf
+ rm -f $@
+ $(GPERF) -t $< > $@-t
+ mv $@-t $@