diff --git a/Makefile b/Makefile
index 5dc165f..fa87991 100644
--- a/Makefile
+++ b/Makefile
@@ -52,9 +52,13 @@ libs: ./include/rule_type.h src/parser.c src/dialect.c $(SRC_FILES) src/Makefile
 	cd src; $(MAKE) CC=$(CC) $@
 .PHONY: libs
 
+libs_so: ./include/rule_type.h src/parser.c src/dialect.c $(SRC_FILES) src/Makefile
+	cd src; $(MAKE) CC=$(CC) $@
+.PHONY: libs_so
+
 .run: cli $(GHERKIN) $(GOOD_FEATURE_FILES)
 	$(RUN_GHERKIN) $(GOOD_FEATURE_FILES) | jq . > /dev/null
-	touch .run
+	touch $@
 
 ./include/rule_type.h: gherkin.berp gherkin-c-rule-type.razor
 	mono berp/berp.exe -g gherkin.berp -t gherkin-c-rule-type.razor -o $@
@@ -96,3 +100,4 @@ acceptance/testdata/%.feature.source.ndjson: testdata/%.feature testdata/%.featu
 	mkdir -p `dirname $@`
 	$(RUN_GHERKIN) --no-ast --no-pickles $< | jq --sort-keys --compact-output "." > $@
 	diff --unified <(jq "." $<.source.ndjson) <(jq "." $@)
+
diff --git a/VERSION b/VERSION
new file mode 100644
index 0000000..32f3eaa
--- /dev/null
+++ b/VERSION
@@ -0,0 +1 @@
+5.0.1
\ No newline at end of file
diff --git a/src/error_list.h b/include/error_list.h
similarity index 100%
rename from src/error_list.h
rename to include/error_list.h
diff --git a/src/file_reader.h b/include/file_reader.h
similarity index 100%
rename from src/file_reader.h
rename to include/file_reader.h
diff --git a/src/Makefile b/src/Makefile
index 3fccc6e..2e2659d 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -1,10 +1,12 @@
-GCC_FLAGS=-c -Wall -Werror -g
-CLANG_FLAGS=-c -Wall -Werror -g
+GCC_FLAGS=-c -Wall -Werror -g -fPIC 
+CLANG_FLAGS=-c -Wall -Werror -g -fPIC 
+GCC_SO_FLAGS=-shared
+MINGW_FLAGS=-c -Wall -Werror -g 
 
 ifeq ($(CC),i686-w64-mingw32-gcc)
 	CC=i686-w64-mingw32-gcc
 	LD=i686-w64-mingw32-gcc
-	CC_FLAGS=$(GCC_FLAGS)
+	CC_FLAGS=$(MINGW_FLAGS)
 	AR=i686-w64-mingw32-ar
 	EXT=.exe
 else ifeq ($(CC),clang)
@@ -25,13 +27,22 @@ LD_LIBS=-lm
 RM_CMD=rm -rf
 MKDIR_CMD=mkdir -p
 
+VERSION=$(shell cat ../VERSION)
+
 all: \
-    cli \
-	../bin/gherkin_generate_tokens$(EXT)
+  cli \
+	../bin/gherkin_generate_tokens$(EXT) \
+	libs_so
+.PHONY: all
 
 cli: ../bin/gherkin$(EXT)
+.PHONY: cli
 
 libs: ../libs/libgherkin.a
+.PHONY: libs
+
+libs_so: ../libs/libgherkin.so.$(VERSION)
+.PHONY: libs_so
 
 clean:
 	$(RM_CMD) ../bin ../objs ../libs
@@ -121,6 +132,10 @@ GHERKIN_CLI_OBJS= \
 	$(MKDIR_CMD) $(dir $@)
 	$(AR) $(AR_FLAGS) $@ $(UTILITIES_OBJS) $(PARSER_OBJS) $(AST_OBJS) $(COMPILER_OBJS) $(PICKLES_OBJS) $(EVENT_OBJS)
 
+../libs/libgherkin.so.$(VERSION): $(UTILITIES_OBJS) $(PARSER_OBJS) $(AST_OBJS) $(COMPILER_OBJS) $(PICKLES_OBJS) $(EVENT_OBJS) Makefile
+	$(MKDIR_CMD) $(dir $@)
+	$(CC) $(GCC_SO_FLAGS) $(UTILITIES_OBJS) $(PARSER_OBJS) $(AST_OBJS) $(COMPILER_OBJS) $(PICKLES_OBJS) $(EVENT_OBJS) -o $@
+
 ../bin/gherkin_generate_tokens$(EXT): ../libs/libgherkin.a $(GENERATE_TOKEN_OBJS) Makefile
 	$(MKDIR_CMD) $(dir $@)
 	$(LD) $(LD_FLAGS) $(GENERATE_TOKEN_OBJS) -L../libs/ -lgherkin $(LD_LIBS) -o $@