Add support to user lib in Makefile

test/Makefile

@@ -7,11 +7,11 @@ INCLUDES=-I$(ROOT)/emulation/
 RM = rm -rf
 SRC=reduce-traditionnal.c data_gen.c
 BIN=reduce-traditional data-gen reduce-ngi
-OBJ=libngi.so
+OBJ=libngi.so libreduce-ngi-userlib.so
 
 all: clean build test
 
-build: data-gen reduce-ngi reduce-traditional
+build: $(BIN) $(OBJ)
 
 clean:
 	$(RM) $(BIN) $(OBJ)
@@ -25,11 +25,14 @@ data-gen: data-gen.c
 # Build NGI Emulation lib
 libngi.so: $(ROOT)/emulation/ngi.c
 	@echo 'Building ngi shared library: $@'
-	@echo $(ROOT)
-	$(CC) $(CLFAFS) $(INCLUDES) $< -shared -fpic -o $@
+	$(CC) $(CLFAGS) $(INCLUDES) $< -shared -fpic -o $@
+
+libreduce-ngi-userlib.so: reduce-ngi-userlib.c
+	@echo 'Building ngi user shared library: $@'
+	gcc  $(CFLAGS) -Wall -Wextra  $< -shared -fpic -o $@
 
 reduce-ngi: reduce-ngi.c libngi.so
-	$(CC) $(CFLAGS) $< -o $@ $(INCLUDES)  -L. -l ngi -Wl,-rpath=$(PWD)
+	$(CC) $(CFLAGS) $< -o $@ $(INCLUDES)  -L. -l ngi -Wl,-rpath=$(PWD) -ldl
 
 test:
 	@echo "Data generation"