color compilation #4

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1. backtracking commented on Apr 15, 2016

   

   backtracking

   on Apr 15, 2016

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   This is indeed a compilation issue: our Makefile entry for color.opt is
   assuming OCamlGraph has been installed in subdirectory ocamlgraph/ of
   OCaml's standard library and not via ocamlfind (which must be your case).

   The correct compilation command for color.opt should then rather be

   ocamlfind ocamlopt -package ocamlgraph -package graphics -package unix
   -linkpkg combine.cmxa color.ml -o color.opt

   Thanks for reporting this issue.

   Jean-Christophe

   On 15/04/2016 14:55, tomsib2001 wrote:

   When trying to compile color.ml using the proposed command with Ocaml
   4.02.1 or Ocaml 4.02.3

   |make color.opt |

   I get the error

   |ocamlopt.opt -o color.opt -g -annot -I +ocamlgraph unix.cmxa
   graphics.cmxa graph.cmxa combine.cmxa color.ml File "color.ml", line 25,
   characters 5-10: Error: Unbound module Graph make: *** [color.opt]
   Erreur 2 |

   But the issue here is not my installation of ocamlgraph, as if I create
   a file toto.ml with just

   |open Graph |

   and compile it using

   |ocamlbuid -package ocamlgraph toto.native |

   the log says

   |### Starting build. # Target: toto.ml.depends, tags: { extension:ml,
   file:toto.ml, ocaml, ocamldep, quiet }
   /home/thomas/.opam/4.02.3/bin/ocamldep.opt -modules toto.ml >
   toto.ml.depends # Target: toto.cmo, tags: { byte, compile,
   extension:cmo, extension:ml, file:toto.cmo, file:toto.ml, implem, ocaml,
   quiet } /home/thomas/.opam/4.02.3/bin/ocamlc.opt -c -I
   /home/thomas/.opam/4.02.3/lib/ocamlgraph -o toto.cmo toto.ml # Target:
   toto.cmx, tags: { compile, extension:cmx, extension:ml, file:toto.cmx,
   file:toto.ml, implem, native, ocaml, quiet }
   /home/thomas/.opam/4.02.3/bin/ocamlopt.opt -c -I
   /home/thomas/.opam/4.02.3/lib/ocamlgraph -o toto.cmx toto.ml # Target:
   toto.native, tags: { dont_link_with, extension:native, file:toto.native,
   link, native, ocaml, program, quiet }
   /home/thomas/.opam/4.02.3/bin/ocamlopt.opt -I
   /home/thomas/.opam/4.02.3/lib/ocamlgraph
   /home/thomas/.opam/4.02.3/lib/ocamlgraph/graph.cmxa toto.cmx -o
   toto.native # Compilation successful. |

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