+SpotInstall : a tool to install annot files
+SpotInstall is a tool to facilitate the installation of OCaml annotation files (.cmt, .cmti, .spot, .spit).
+Many existing OCaml libraries, applications and the compiler itself do not produce or install the annotation files (.annot, .cmt, .cmti, .spot, .spit) which are essential for subexpression type queries (caml-types.el), definition seaches and code refactoring (TypeRex and OCamlSpotter). If you want to use development tools, you have to:
+* Rebuild all the software from the source, adding -annot/-bin-annot option to compiler flags in build scripts i.e. Makefile/OCamlBuild/OMakefile.
+* Install those annotation files together with the library objects and signatures. (Require modification of the build scripts)
+I propose a workaround, consists of two things:
+* A very small compiler patch which activates -annot and -bin-annot if OCAML_ANNOT environment variable is defined. (You no longder need to add -annot/-bin-annot to the build scripts.)
+* A small tool to install annotation files to the library destination directory. (You no longer need to add annotation file installation to the build scripts.)
+For the first workaround, you need a small patch available from
+ hg clone -b annot https://bitbucket.org/camlspotter/mutated_ocaml
+For the second one, you can use SpotInstall. This tool.
+The command checks the files in the installation directory of OCamlFind package <package>, and if there are corresponding annotation files in the current and its sub directories, copy them to the installation directory.
+If <package> is ocaml, spotinstall works bit differently and copies the annotation files build under OCaml compiler source tree.
+To use the annotation files installed by SpotInstall smoothly, you should keep your source trees and their annotation files.