Unhelpful error message

[Eneroth3]

fiddle/lib/fiddle/import.rb

Line 88 in 0fc697b

rescue DLError

When dlload in import.rb fails to load it raises an DLError with the message "can't load #{lib}". This is not a very helpful message as it doesn't say anything about why it couldn't load the library.

I've commented out some code for rescuing and re-raising so I could see the original error message, which to me was much more helpful.

Current:

          begin
            Fiddle.dlopen(lib)
          rescue DLError
            raise(DLError, "can't load #{lib}")
          end

Modified:

          #begin
            Fiddle.dlopen(lib)
          #rescue DLError
          #  raise(DLError, "can't load #{lib}")
          #end

Perhaps the original message can be included in the new one, or rescuing and re-raising could be removed in favor of the original exception.

Some background information: I'm very new to both Fiddle and C/C++ programming, but have been using Ruby for years. I've (tried to) compile my first ever DLL and use it in a Ruby project using Fiddle. When getting an error saying "Can't load", it is very hard to tell if I did something wrong with my DLL, if I've provided the wrong path or if I am using Fiddle incorrectly in any way.

[ankane]

Hey @Eneroth3, not a maintainer, but one way to get around this is:

dlload Fiddle.dlopen(lib)

[kou]

Thanks.
It makes sense.