A few more tweaks to the benchmark Makefile.

Makefile

@@ -3,20 +3,20 @@
 CC=gcc
 CXX=g++
 CFLAGS=-std=c99
-CPPFLAGS=-O3 -Wall -Wextra -pedantic -g -DUPB_UNALIGNED_READS_OK -fomit-frame-pointer -Idescriptor -Isrc -Itests
+CPPFLAGS=-O3 -Wall -Wextra -pedantic -g -DUPB_UNALIGNED_READS_OK -fomit-frame-pointer -Idescriptor -Isrc -Itests -I.
 OBJ=src/upb_parse.o src/upb_table.o src/upb_msg.o src/upb_enum.o src/upb_context.o \
     src/upb_string.o descriptor/descriptor.o
 SRC=src/*.c src/*.h descriptor/*.c descriptor/*.h tests/*.c tests/*.h tools/*.c tools/*.h
 ALL=$(OBJ) src/libupb.a tests/test_table tests/tests tools/upbc benchmark/benchmark
 all: $(ALL)
 clean:
-	rm -f $(ALL) deps
+	rm -f $(ALL) deps benchmark/google_messages.proto.pb benchmark/google_messages.pb.* 
 
 src/libupb.a: $(OBJ)
 	ar rcs src/libupb.a $(OBJ)
 tests/test_table: src/libupb.a
 tools/upbc: src/libupb.a
-benchmark/benchmark: src/libupb.a benchmark/google_messages.pb.h -lm
+benchmark/benchmark: src/libupb.a benchmark/google_messages.pb.h benchmark/google_messages.pb.o -lm
 benchmark/google_messages.pb.h benchmark/google_messages.pb: benchmark/google_messages.proto
 	protoc benchmark/google_messages.proto --cpp_out=. -obenchmark/google_messages.proto.pb