[build] add a 'prepare' target to use packages installed on the syste…

…m instead of downloading them on the internet

Makefile

@@ -23,6 +23,10 @@ opt: $(LOCAL_OCPBUILD)
 $(LOCAL_OCPBUILD): ocp-build/ocp-build.boot ocp-build/win32_c.c
 	$(MAKE) -C ocp-build
 
+OCAMLFIND_DIR=$(shell ocamlfind printconf destdir)
+prepare: depends.ocp.in
+	sed "s|%{lib}%|$(OCAMLFIND_DIR)|g" depends.ocp.in > depends.ocp
+
 compile: $(LOCAL_OCPBUILD)
 	$(OCPBUILD) -init -scan -sanitize $(TARGET)
 

depends.ocp.in

@@ -0,0 +1,50 @@
+begin library "re"
+  dirname  += "%{lib}%/re"
+  generated = true
+end
+
+begin library "re_perl"
+  dirname  += "%{lib}%/re"
+  generated = true
+  requires  = [ "re" ]
+end
+
+begin library "re_glob"
+  dirname  += "%{lib}%/re"
+  generated = true
+  requires  = [ "re" ]
+end
+
+begin library "re_pcre"
+  dirname  += "%{lib}%/re"
+  generated = true
+  requires  = [ "re_perl" ]
+end
+
+begin library "graph"
+  dirname  += "%{lib}%/ocamlgraph"
+  generated = true
+end
+
+begin library "arg"
+  dirname  += "%{lib}%/ocaml-arg"
+  generated = true
+end
+
+begin library "cudf"
+  dirname  += "%{lib}%/mancoosi-cudf"
+  generated = true
+  requires  = [ "extLib" ]
+end
+
+begin library "dose"
+  dirname  += "%{lib}%/mancoosi-dose"
+  generated = true
+  requires  = [ "re_pcre" "extLib" "cudf" "graph" "unix" "str" ]
+end
+
+begin library "extLib"
+  dirname  += "%{lib}%/extlib"
+  generated = true
+end
+