examples: Add options_file_example to target all

Summary: Closes https://github.com/facebook/rocksdb/pull/1723

Differential Revision: D4372273

Pulled By: IslamAbdelRahman

fbshipit-source-id: c8c2ad0

examples/Makefile

@@ -10,7 +10,7 @@ endif
 	
 .PHONY: clean librocksdb
 
-all: simple_example column_families_example compact_files_example c_simple_example optimistic_transaction_example transaction_example compaction_filter_example
+all: simple_example column_families_example compact_files_example c_simple_example optimistic_transaction_example transaction_example compaction_filter_example options_file_example
 
 simple_example: librocksdb simple_example.cc
 	$(CXX) $(CXXFLAGS) $@.cc -o$@ ../librocksdb.a -I../include -O2 -std=c++11 $(PLATFORM_LDFLAGS) $(PLATFORM_CXXFLAGS) $(EXEC_LDFLAGS)
@@ -40,7 +40,7 @@ options_file_example: librocksdb options_file_example.cc
 	$(CXX) $(CXXFLAGS) $@.cc -o$@ ../librocksdb.a -I../include -O2 -std=c++11 $(PLATFORM_LDFLAGS) $(PLATFORM_CXXFLAGS) $(EXEC_LDFLAGS)
 
 clean:
-	rm -rf ./simple_example ./column_families_example ./compact_files_example ./compaction_filter_example ./c_simple_example c_simple_example.o ./optimistic_transaction_example ./transaction_example
+	rm -rf ./simple_example ./column_families_example ./compact_files_example ./compaction_filter_example ./c_simple_example c_simple_example.o ./optimistic_transaction_example ./transaction_example ./options_file_example
 
 librocksdb:
 	cd .. && $(MAKE) static_lib