[Omake] How to build camlp4 extension?

[Aleksey Nogin]

On 28.11.2006 06:07, Dmitry Bely wrote:

> etc. But how to build the syntax extension itself? I tried the following:
> 
> section
>    BYTE_ENABLED = true
>    NATIVE_ENABLED = false
>    OCAMLFLAGS = -I +camlp4
>    OCAMLPPFLAGS = -pp "camlp4o pa_extend.cmo q_MLast.cmo"
>    OCAMLDEPFLAGS = $(OCAMLPPFLAGS)
>    pa_ba.cmo: pa_ba.ml


Ah, I think I know what is going on - you have pa_ba.ml and no
pa_ba.mli, right? In that case, building pa_ba.cmo will also build
pa_ba.cmi and it's the pa_ba.cmi rule that escapes the "section".

You need to replace the line

pa_ba.cmo: pa_ba.ml

with something like

pa_ba.cmo pa_ba.cmi:

P.S. It's interesting (and wrong) that OMake ends up complaining about
separate targeting of .obj and .cmo while the real problem is the
separate targeting of .cmi and .cmo... I made this warning message more
verbose in 0.9.8, hopefully it will help a bit...

Aleksey