use dune to compile

src/Makefile

 .PHONY = build clean
 
-# default rule
-build: ../bin/dot2lus
+all:
+	cd ../.. ; make && make install
+
 
 clean:
-	rm -f *.cmx *.cmi *.o
-	rm -f ../bin/dot2lus
-	-rmdir ../bin
+	cd ../.. ; make clean
 
-../bin/dot2lus: dot2lus.ml
-	mkdir -p ../bin
-	ocamlfind ocamlopt -o ../bin/$@ -linkpkg -package sasacore $^

src/dune

+;; Time-stamp: <modified the 21/11/2021 (at 17:50) by Erwan Jahier>
+
+(executable
+ (name dot2lus)
+ (flags -noassert)
+  (link_flags (-linkall))
+ (libraries ocamlgraph lutils sasacore algo)
+)
+
+(install
+ (section bin)
+ (package sasa)
+ (files (dot2lus.exe as salut))
+; (files sasaRun.cmxa)
+)
+