add myocamlbuild.ml file for building of static executable

Author: tofgarion

Makefile

@@ -22,7 +22,7 @@ debug: sanity
 	$(OCB) -tag debug src/moloss.byte
 
 static: sanity
-	$(OCB) -tag custom src/moloss.native
+	STATIC=true $(OCB) -tag custom src/moloss.native
 
 # tests
 various_tests: native

_tags

@@ -9,9 +9,6 @@ true: use_menhir
 <src/smtmsat.ml>: package(msat)
 <**/moloss.*>: package(unix), package(minisat), package(msat)
 
-# compiler options
-true: ccopt(-static)
-
 # Local Variables:
 # mode: conf
 # End:

myocamlbuild.ml

@@ -0,0 +1,9 @@
+open Ocamlbuild_plugin
+
+let () =
+  dispatch begin function
+    | After_hygiene ->
+      if getenv "STATIC" ~default:"false" = "true" then
+        tag_any ["ccopt(-static)"]
+    | _ -> ()
+  end