Teach ocamlbuild to create shared libraries using -output-obj #6733
Description
Original bug ID: 6733
Reporter: @whitequark
Assigned to: @gasche
Status: closed (set by @xavierleroy on 2017-02-16T14:15:07Z)
Resolution: fixed
Priority: normal
Severity: feature
Fixed in version: 4.02.2+dev / +rc1
Category: -for ocamlbuild use https://github.com/ocaml/ocamlbuild/issues
Tags: patch
Related to: #6693 #6797 #6845 #6918 #6927
Monitored by: @hcarty
Bug description
Currently I am using the following code (parts of which are pulled into myocamlbuild, not being accessible from ocamlbuild library):
let native_link_gen linker =
Ocaml_compiler.link_gen "cmx" "cmxa"
!Options.ext_lib [!Options.ext_obj; "cmi"] linker
in
let native_output_obj x = native_link_gen Ocaml_compiler.ocamlopt_link_prog
(fun tags -> tags++"ocaml"++"link"++"native"++"output_obj"++"output_so") x
in
flag ["ocaml"; "link"; "output_so"] & S[A"-cclib"; A"-shared"];
flag ["ocaml"; "link"; "output_obj"; "debug"] & A"-g";
rule "ocaml: cmx & o -> native.(so|dll|dylib)"
~prod:("%.native"-.-(!Options.ext_dll))
~deps:["%.cmx"; "%.o"]
(native_output_obj "%.cmx" ("%.native"-.-(!Options.ext_dll)));
Then, I just do ocamlbuild foo.native.so. It works flawlessly.
Possibly it is also useful to provide foo.byte.so.