Re: [Caml-list] compiling a clib from further away

[Andrew Warshaver <awarshaver@janestcapital.com>]

Andrew Warshaver wrote:
> I am trying to compile a clib (with the eventual hope of it making its 
> way into a compiled ocaml lib).  It is working fine if I am in the 
> specific directory; but if I move too far out it fails.  My directories 
> are like /../janebase/lib/cephes/  The c files live in cephes.
> 
> $ cat lib/cephes/libjane_stubs.clib
> bdtr.o
> btdtr.o
> chbevl.o
> ...
> $ cat _tags
> <sexp> or <lib>: include
> 
> $ cat myocamlbuild.ml
> open Ocamlbuild_plugin
> open Command
> 
> let headers = ["lib/cephes/mconf.h"; "lib/cephes/protos.h"];;
> 
> dispatch begin function
>   | After_rules ->
>       dep ["compile"; "c"] headers;
>   | _ -> ()
> end
> 
> $ ocamlbuild lib/cephes/libjane_stubs.a
> + /usr/local/home/godi310/godi/bin/ocamlmklib -o /cephes/libjane_stubs 

by the way, obviously the culprit is in this -o, it should have lib/, is 
this a ocamlbuild bug?

> lib/cephes/bdtr.o lib/cephes/btdtr.o lib/cephes/chbevl.o 
> lib/cephes/chdtr.o lib/cephes/const.o lib/cephes/drand.o 
> lib/cephes/expx2.o lib/cephes/fdtr.o lib/cephes/gamma.o 
> lib/cephes/gdtr.o lib/cephes/igam.o lib/cephes/igami.o 
> lib/cephes/incbet.o lib/cephes/incbi.o lib/cephes/kolmogorov.o 
> lib/cephes/main.o lib/cephes/mtherr.o lib/cephes/nbdtr.o 
> lib/cephes/ndtr.o lib/cephes/ndtri.o lib/cephes/pdtr.o 
> lib/cephes/polevl.o lib/cephes/stdtr.o lib/cephes/unity.o
> /usr/bin/ld: cannot open output file /cephes/dlllibjane_stubs.so: No 
> such file or directory
> collect2: ld returned 1 exit status
> Command exited with code 2.
> 
> However, when I move one directory closer,
> 
> $ cd lib
> [awarshaver@nyc-qws-029 lib]$ cat myocamlbuild.ml
> open Ocamlbuild_plugin
> open Command
> 
> let headers = ["cephes/mconf.h"; "cephes/protos.h"];;
> 
> dispatch begin function
>   | After_rules ->
>       dep ["compile"; "c"] headers;
>   | _ -> ()
> end
> [awarshaver@nyc-qws-029 lib]$ ocamlbuild cephes/libjane_stubs.a
> + /usr/local/home/godi310/godi/bin/ocamlc.opt -c cephes/main.c
> cephes/main.c: In function ‘main’:
> cephes/main.c:9: warning: control reaches end of non-void function
> Finished, 49 targets (0 cached) in 00:00:02.
> 
> Any ideas?
> 
> Thanks,
> Andrew
> 
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