Update hacking instructions.

diff --git a/HACKING b/HACKING
index 5ddab53..dcaa3c1 100644 (file)
--- a/HACKING
+++ b/HACKING
@@ -1,6 +1,10 @@
 Building instructions
 ---------------------
 
-ocamlbuild src/test.native
+./build [options]
 
-to build the native executable.
\ No newline at end of file
+        builds the native executable
+options:
+        -d build the executable in debug mode
+        -p build the executable in profile mode
+        -v versbose build