made work: line numbers in files with the correct indentation level (tested on a > 1000 lines file)

Makefile

@@ -1,6 +1,6 @@
 CC := gcc
 CFLAGS := -Wall -Werror
-LIBS := -lvector -lfile -llist
+LIBS := -lvector -lfile -llist -lutil
 LIBSPATH := -L/usr/lib/odweta/
 INCLUDEDIR := -I/usr/include/odweta/
 PATCH := -Wl,-rpath=/usr/lib/odweta/
@@ -9,7 +9,7 @@ PATCH := -Wl,-rpath=/usr/lib/odweta/
 
 default: demo
 
-demo: demo.c libvector.so libfile.so liblist.so
+demo: demo.c libvector.so libfile.so liblist.so libutil.so
 	sudo $(CC) $(CFLAGS) -o $@ $< $(PATCH) $(INCLUDEDIR) $(LIBSPATH) $(LIBS)
 
 libvector.so: src/vector.c
@@ -24,15 +24,19 @@ liblist.so: src/list.c
 	sudo $(CC) -c -fpic $< -o /usr/lib/odweta/list.o
 	sudo $(CC) -shared -o /usr/lib/odweta/$@ /usr/lib/odweta/list.o
 
+libutil.so: src/util.c
+	sudo $(CC) -c -fpic $< -o /usr/lib/odweta/util.o
+	sudo $(CC) -shared -o /usr/lib/odweta/$@ /usr/lib/odweta/util.o
+
 install:
 	sudo mkdir -p /usr/include/odweta/
 	sudo mkdir -p /usr/lib/odweta/
-	sudo cp src/vector.c src/file.c src/list.c include/vector.h include/file.h include/list.h /usr/include/odweta/
-	sudo make libvector.so libfile.so liblist.so
+	sudo cp src/vector.c src/file.c src/list.c src/util.c include/vector.h include/file.h include/list.h include/util.h /usr/include/odweta/
+	sudo make libvector.so libfile.so liblist.so libutil.so
 	sudo ldconfig # update ldconfig cache
 
 clean:
-	sudo rm -f main /usr/lib/odweta/vector.o /usr/lib/odweta/file.o /usr/lib/odweta/libvector.so /usr/lib/odweta/libfile.so /usr/lib/odweta/list.o /usr/lib/odweta/liblist.so
+	sudo rm -f main /usr/lib/odweta/vector.o /usr/lib/odweta/file.o /usr/lib/odweta/list.o /usr/lib/odweta/util.o /usr/lib/odweta/libvector.so /usr/lib/odweta/libfile.so /usr/lib/odweta/liblist.so /usr/lib/odweta/libutil.so
 
 cleanrepo:
 	rm -fr ./demo ./moved_copy_of_test.txt ./copy_of_test.txt