[Gambas-user] Cannot find proprietary shared libraries.

[d4t4full at gmail.com]

Sebastián,

Thanks for the info. Will most probably do that.

It seems to me that I will end up with either 32 or 64 but not both.

Just in case to be real sure, though, and referring to my last question: Is there any way I can get both, Gambas3 32 AND 64 on the same 64bit OS?

Thanks in advance,


On Jun 5, 2018, 16:28, at 16:28, "Sebastián Kulesz" <sebikul at gmail.com> wrote:
>If you are using any of the PPAs, this should work:
>
>$ sudo dpkg --add-architecture i386
>$ sudo apt remove gambas3
>$ sudo apt update
>$ sudo apt install gambas3:i386
>
>More info here: https://wiki.debian.org/Multiarch/HOWTO
>
>Hope it helps!
>
>On Tue, Jun 5, 2018, 14:39 ML <d4t4full at gmail.com> wrote:
>
>> On 05/06/18 09:10, Benoît Minisini wrote:
>> > Le 05/06/2018 à 14:02, ML a écrit :
>> >> Guys, need help accessing proprietary shared libs from Gambas
>> >> (v3.11.2) from PPA in Ubuntu 16.04 x64.
>> >> I've been given -after signing an NDA with a company- a couple of
>> >> development .so files.
>> >> I placed these .so files in a subfolder inside my home folder.
>> >> I've put this path inside a .conf file, put this .conf file inside
>> >> /etc/ld.so.conf.d and ran ldconfig as superuser.
>> >> I verified the libs and their location are in the cache by
>grepping
>> >> the output from ldconfig -p: They are both there.
>> >> But alas! Gambas cannot find them. I have this sample code (sorry,
>> >> cannot give real code details 'cos of the NDA):
>> >> Lib call declaration in a module (say it is called modLib):
>> >>
>> >>    'The call name used is the actual call name, respecting
>> >> upper/lowercase, ie: no need for EXEC.
>> >>    Public Extern SomeLib_GetVersion(versionStrPtr As Pointer) In
>> >> "libName"
>> >>
>> >> I also have a form with -appx- the following code:
>> >>
>> >>    Public Sub Form_Open()
>> >>      Dim libVersion As String = String(128, " ")
>> >>      Dim strPtr As Pointer = VarPtr(libVersion)
>> >>      Try modLibrary.SomeLib_GetVersion(strPtr)
>> >>      If (Error.Code) Then
>> >>        Message.Error(Error.Text)
>> >>      End If
>> >>    End
>> >>
>> >> When I call this from a form, I get the following error:
>> >> Cannot find dynamic library 'libName.so': libName.so: cannot open
>> >> shared object file: No such file or directory
>> >> Now, I've seen lib names with a trailing colon and (version?)
>number.
>> >> I don't know how or where can I get this info from, or if I need
>them.
>> >> How can I get Gambas able to find and use these .so files?
>> >> Regarding these trailing ":<number>" in EXTERN declarations: How
>do I
>> >> find these out, and how do I know whether I need them or not?
>> >
>> > The name of the library is directly passed to the dlopen()
>function,
>> > and the error you get is the error returned by dlopen().
>> > The "<number>" after the colon is just the version number of the
>> > shared library. You find it in the name of the shared library
>symbolic
>> > link. You have to specify it only if you have multiple versions of
>the
>> > same library, or if you requested a specific feature of a specific
>> > version of the library.
>> > Regards,
>>
>> Benoît,
>>
>> Thanks a ton for the tips.
>> Further investigation led me to find the root of all evil (this means
>I
>> wrote and compiled a quick&dirty C 'hello world' targeting the
>libraries
>> and compiled 32 and 64 bit versions; 32bit worked and 64bit did not
>> giving the same error as Gambas).
>> Libs are 32bit, my OS is 64bit. Using a virtual Ubuntu (32bit) inside
>my
>> Ubuntu (64bit), the 32bit virtual Gambas version works as expected.
>>
>> Beware, probably stupid question: Is there a way I can install a
>32bit
>> Gambas alongside a 64bit Gambas in my 64bit OS?
>>
>>
>>
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