Better dune ocamldebug integration

- use coqc instead of coqtop (since -compile doesn't work anymore this
  is better)
- pass through extra arguments to dune-dbg
- auto detect the need to pass -emacs to ocamldebug
- instructions for emacs users

The dune-dbg dependencies are still broken ;_;

1 files changed, 4 insertions, 2 deletions

diff --git a/dev/doc/build-system.dune.md b/dev/doc/build-system.dune.md
index 49251d61a1..372e40a0b7 100644
--- a/dev/doc/build-system.dune.md
+++ b/dev/doc/build-system.dune.md
@@ -108,14 +108,14 @@ automatically.
 You can use `ocamldebug` with Dune; after a build, do:
 
 ```
-dune exec dev/dune-dbg
+dune exec dev/dune-dbg /path/to/foo.v
 (ocd) source dune_db
 ```
 
 or
 
 ```
-dune exec dev/dune-dbg checker
+dune exec dev/dune-dbg checker Foo
 (ocd) source dune_db
 ```
 
@@ -124,6 +124,8 @@ refined, so you need to build enough of Coq once to use this target
 [it will then correctly compute the deps and rebuild if you call the
 script again] This will be fixed in the future.
 
+For running in emacs, use `coqdev-ocamldebug` from `coqdev.el`.
+
 ## Dropping from coqtop:
 
 After doing `make -f Makefile.dune voboot`, the following commands should work: