Re: [Forge] IO still gives error

[Carnë Draug]

On 7 January 2014 13:33, Carnë Draug <address@hidden> wrote:
> On 7 January 2014 13:03, Juan Pablo Carbajal <address@hidden> wrote:
>> Hi,
>> I am still running into this error in Ubuntu 13.10, GNU Octave 3.8
>>
>> octave:1> pkg -forge install io
>> 'chk_spreadsheet_support' undefined near line 41 column 16
>> error: called from
>> '/home/juanpi/.octave/io-2.0.1/x86_64-unknown-linux-gnu-api-v49+/PKG_ADD'
>> in file 
>> /home/juanpi/.octave/io-2.0.1/x86_64-unknown-linux-gnu-api-v49+/PKG_ADD
>> near line 41, column 14
>> error: called from:
>> error:   /usr/local/share/octave/3.8.0-rc1/m/pkg/private/install.m at
>> line 241, column 5
>> error:   /usr/local/share/octave/3.8.0-rc1/m/pkg/pkg.m at line 394, column 9
>>
>> If one install twice then the error disappears, so it seems like a
>> load path problem or something of the like.
>>
>> In the mailing list there were temporal solutions presented, like
>> erase io before installing and the such... anyone have a better idea?
>> It seems to be a java class problem.
>
> What causes the problem is that the PKG_ADD script of the io package
> uses functions from the io package. So when you load a package, the
> following happens@
>
> 1 - adds the directory with oct files to the path
> 2 - finds the PKG_ADD file and runs it
> 3 - the PKG_ADD calls chk_spreadsheet_support which is not in the path yet
> 4 - fails
>
> When the directory with m files is added first to the path, then there
> is no problem. However, it seems that sometimes it happens the other
> way around.
>
> Note that the fix for this is not add the directory with m files
> always first otherwise you'll have the same problem when PKG_ADD calls
> an oct function from the same package.
>
> Carnë

If you take a look at the post_install function of the io package, it
has some code that removed the PKG_ADD from the oct file directory as
a workaround for this. However, for some reason it was commented out
for the latest release.

Carnë