yaml.h

[soft4good]

Hi Joe,

Thank you very much for this library, very cool.

Now, i'm new to elixir and was trying to use your library in my project, i add it to the deps in mix.exs and do mix deps.get, all good, but then on compile time i keep getting:

==> yomel
c_src/utils.c:2:10: fatal error: 'yaml.h' file not found
#include <yaml.h>
         ^
1 error generated.
c_src/yomel_nif.c:2:10: fatal error: 'yaml.h' file not found
#include <yaml.h>
         ^
1 error generated.

== Compilation error on file lib/yomel/parser.ex ==
** (MatchError) no match of right hand side value: {:error, :on_load_failure}
    (stdlib) erl_eval.erl:657: :erl_eval.do_apply/6

could not compile dependency yomel, mix compile failed. You can recompile this dependency with `mix deps.compile yomel` or update it with `mix deps.update yomel`

14:37:28.439 [error] The on_load function for module Elixir.Yomel.Parser returned {:error,
 {:load_failed,
  'Failed to load NIF library: \'priv/yomel.so: invalid file format\''}}

What i'm missing? thanks!

I have yaml-cpp installed and yaml.h is in /usr/local/include/yaml.h ... Also, FYI, i'm trying to use this in a eJabberd module.

[soft4good]

Well, if somebody else have this issue, just fixed it by adding /usr/local/include to the gcc include path, the path to yaml.h was missing...

setenv C_INCLUDE_PATH /usr/local/include/

Now i'm getting:

==> yomel
/usr/bin/ld: /tmp/utils-0c94c7.o: relocation R_X86_64_32S against `a local symbol' can not be used when making a shared object; recompile with -fPIC
/tmp/utils-0c94c7.o: could not read symbols: Bad value
clang: error: linker command failed with exit code 1 (use -v to see invocation)

== Compilation error on file lib/yomel/parser.ex ==
** (MatchError) no match of right hand side value: {:error, :on_load_failure}
    (stdlib) erl_eval.erl:657: :erl_eval.do_apply/6


16:04:32.179 [error] The on_load function for module Elixir.Yomel.Parser returned {:error,
 {:load_failed, 'Failed to load NIF library: \'Cannot open "priv/yomel.so"\''}}

I'm using FreeBSD btw.

Will keep looking into it.

[Joe-noh]

Hi, @reinier-gonzalez
Thank you for your report!

Yomel is assuming that yaml.h from libyaml is used.
Can you manually make latest libyaml and use with it?

I'm sorry; the compile process isn't tested enough.
If you need to change what the task Mix.Tasks.Compile.Nif does, please feel free to send a pull-request!

Thanks.

[Joe-noh]

@reinier-gonzalez

I'm so sorry! It had a bug that wrong paths were specified.
Can you try again?

[gaaamii]

@reinier-gonzalez This issue helped me use libyaml in my C project. Thanks!