Detail: [#1071] `caml_cairo_set_line_width' is still not available

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[#1071] `caml_cairo_set_line_width' is still not available

Date:
2011-12-15 14:46 Priority:
3

State:
Closed

Submitted by:
Dan Bensen (drakken) Assigned to:
Christophe Troestler (chris)

Hardware:
PC Resolution:
Works For Me

Severity:
normal Version:
None

Component:
None Operating System:
Linux

Product:
None

URL:

Summary:
`caml_cairo_set_line_width' is still not available

Detailed description
Still getting the error message described in my previous Support post (#1065). When I compile to native code, the error message mentions "caml_cairo_set_line_cap". Here are the command lines: dan[benchplot]$ make byte ocamlfind ocamlc -o benchplot.b -package archimedes -linkpkg -dllpath-all benchplot.ml dan[benchplot]$ benchplot.b Fatal error: exception Backend.Error(_, "The backend "cairo" is not loadable because: error while linking /home/dan/.odb/lib/archimedes/archimedes_cairo.cma. The external function `caml_cairo_set_line_width' is not available") dan[benchplot]$ make native ocamlfind ocamlopt -verbose -o benchplot.x -package archimedes,cairo2 -linkpkg benchplot.ml Effective set of compiler predicates: pkg_dynlink,pkg_unix,pkg_bigarray,pkg_archimedes,pkg_cairo2,autolink,native + ocamlopt.opt -verbose -o benchplot.x -I /home/dan/.odb/lib/archimedes -I /home/dan/.odb/lib/cairo2 /usr/local/lib/ocaml/dynlink.cmxa /usr/local/lib/ocaml/unix.cmxa /usr/local/lib/ocaml/bigarray.cmxa /home/dan/.odb/lib/archimedes/archimedes.cmxa /home/dan/.odb/lib/cairo2/cairo2.cmxa benchplot.ml + as -o 'benchplot.o' '/tmp/camlasm5fe320.s' + as -o '/tmp/camlstartupc19398.o' '/tmp/camlstartupf4d6a9.s' + gcc -o 'benchplot.x' '-L/home/dan/.odb/lib/archimedes' '-L/home/dan/.odb/lib/cairo2' '-L/usr/local/lib/ocaml' -Wl,-E '/tmp/camlstartupc19398.o' '/usr/local/lib/ocaml/std_exit.o' 'benchplot.o' '/home/dan/.odb/lib/cairo2/cairo2.a' '/home/dan/.odb/lib/archimedes/archimedes.a' '/usr/local/lib/ocaml/bigarray.a' '/usr/local/lib/ocaml/unix.a' '/usr/local/lib/ocaml/dynlink.a' '/usr/local/lib/ocaml/stdlib.a' '-lcairo2' '-lcairo' '-lbigarray' '-lunix' '/usr/local/lib/ocaml/libasmrun.a' -lm -ldl dan[benchplot]$ benchplot.x Fatal error: exception Backend.Error(_, "The backend "cairo" is not loadable because: error loading shared library: /home/dan/.odb/lib/archimedes/archimedes_cairo.cmxs: undefined symbol: caml_cairo_set_line_cap")

Followup

Message
Date: 2012-10-01 18:39 Sender: Christophe Troestler Cannot reproduce. Please reopen giving more details if it does not work for you.
Date: 2012-01-06 19:39 Sender: Christophe Troestler I do not have such problem (I tested the installation with odb). dllcairo2.so is in ~/.odb/lib/stublibs/ (if you installed with odb, not sure with GODI). You must make sure the path is in /usr/lib/ocaml/ld.conf. (The [~dirs] argument is completely irrelevant for compilation, it is only an indication where to look for libraries at runtime — to enable portable programs if desired — and should normally not be used.)
Date: 2012-01-06 19:09 Sender: Dan Bensen > Did you set OCAMLPATH=~/.odb/lib ? Yes. dan[benchplot]$ echo $OCAMLPATH /home/dan/.odb/lib Incidentally, I recently switched to a new GODI installation. I couldn't find any uninstall instructions in the INRIA download, so I just deleted /usr/lib/ocaml and anything else I could think of that was related to the original install. Well, I commented out the ~dirs arg to init and the native code is working now. (* ~dirs:["/home/dan/.odb/lib/archimedes";"/home/dan/.odb/lib/cairo2"] ) But now I can't compile to bytecode, even after I added cairo2 to the package list in the makefile: dan[benchplot]$ which ocamlfind /home/dan/ocaml/godi/bin/ocamlfind dan[benchplot]$ make byte ocamlfind ocamlc -o benchplot.b -package archimedes,cairo2 -linkpkg -dllpath-all benchplot.ml File "benchplot.ml", line 1, characters 0-1: Error: Error on dynamically loaded library: dllcairo2.so: dllcairo2.so: cannot open shared object file: No such file or directory make: ** [byte] Error 2 dan[benchplot]$ cat benchplot.ml (* #use "topfind";; #require "str";; #require "unix";; #require "findlib";; #require "archimedes";; --OR-- ocamlfind ocamlc -package archimedes -linkpkg benchplot.ml ) module A = Archimedes;; let plot () = let vp = A.init ~w:300. ~h:400. ( ~dirs:["/home/dan/.odb/lib/archimedes";"/home/dan/.odb/lib/cairo2"] *) ["Cairo"; "PNG"; "output.png"] in A.Axes.box vp; A.Array.y vp ~style:(`Bars 1.) [\|20.; 23.; 18.; 21.\|]; A.close vp ;;plot();; dan[benchplot]$
Date: 2012-01-06 18:17 Sender: Christophe Troestler I cannot reproduce your bug. Did you set OCAMLPATH=~/.odb/lib ?

Attached Files:

Changes:

Field	Old Value	Date	By
status_id	Open	2012-10-01 18:39	chris
close_date	None	2012-10-01 18:39	chris
Resolution	Awaiting Response	2012-10-01 18:39	chris
Resolution	None	2012-01-06 18:17	chris
assigned_to	none	2012-01-06 18:17	chris