Re: [IBMiOSS] node.js - 'module did not self-register' error -- OPENSOURCE

Thanks. I'll be looking into this further today but I have also been thinking ahead about how this is going to work if we can get it to compile correctly...

As this module is clearly going to be using AIX Kerberos libraries/functions it's presumably going to be expecting to find the config/keytab files in a certain place, probably under /etc. They probably won't exist there in the PASE environment so I'm wondering if we're going to be faced with the prospect of symlinking to the 'real' IBM i ones (which may have issues with compatibility, conflicts, permissions, etc) or copying the 'real' ones into the expected PASE location (in which case we end up with two copies).

An alternative we were considering was calling out from node to an RPG program via the XML Toolkit which in turn would use the IBM i GSS-APIs to perform the authentication but there doesn't seem to be a lot in the way of documentation or examples on how to use them so we haven't had much luck with this approach.

-----Original Message-----
From: OpenSource [mailto:opensource-bounces@xxxxxxxxxxxx] On Behalf Of Aaron Bartell
Sent: 06 September 2017 19:00
To: IBMi Open Source Roundtable
Subject: Re: [IBMiOSS] node.js - 'module did not self-register' error

This is way harder than we expected.

Hard today, yes. This is going to become much easier once IBM gets the PASE package manager released. The amount of automation will be soooo much better. [Aaron realizes he has 'Linux lust']

It looks like perzl has gcc 6.3: http://www.oss4aix.org/download/RPMS/gcc/
I am still using 4.8.3 I believe. Please keep the updates coming. Many will use your current hardship for their future success.

Aaron Bartell
IBM i hosting, starting at $157/month. litmis.com/spaces

On Wed, Sep 6, 2017 at 12:48 PM, Mark Ford <Mark.Ford@xxxxxxxxxxx> wrote:

Just to update my own post, installing the
libstdc++-devel-4.6.2-1.aix6.1.ppc.rpm
(matches version of gcc) provided the files to resolve the issue
below, then krb5-devel-1.9.4-1.aix5.1.ppc.rpm to resolve a subsequent
issue with not finding gssapi.h.

Now we have the error "../../../nan/nan.h:45:3: error: #error This
version of node/NAN/v8 requires a C++11 compiler" which we think means
the version of gcc is too old and we may need to try updating to 5.1
(which I think is the minimum to provide this support). I suppose
another alternative would be to use an older version of node.js but
that seems like a huge step backwards.

This is way harder than we expected.

I'll post another update if we get anywhere, or if anybody has tried
gcc-5.1 and found it doesn't work in PASE then please say.

-----Original Message-----
From: Mark Ford
Sent: 06 September 2017 15:59
To: 'IBMi Open Source Roundtable'
Subject: RE: [IBMiOSS] node.js - 'module did not self-register' error

Sorry, I've not had a chance to put the log online, but we've made a
little more progress after modifying the binding.gyp file to allow the
linux section to be selected for inclusion (as a test). The log from
this is below and it's now failing to find an include file called 'utility'
referenced in the v8.h header file, so I'm now looking for that. It's
supposedly a standard c header file.

$ npm install @internal/kerberos @internal/simple-kerberos

@internal/kerberos@0.0.5 install
/home/XX/node/krb/node_modules/@internal/kerberos
(node-gyp rebuild) || (exit 0)

gmake: Entering directory '/home/XX/node/krb/node_
modules/@internal/kerberos/build'
CXX(target) Release/obj.target/kerberos/lib/kerberos.o
In file included from /home/XX/.node-gyp/6.11.2/include/node/node.h:42:0,
from ../lib/kerberos.h:4,
from ../lib/kerberos.cc:1:
/home/XX/.node-gyp/6.11.2/include/node/v8.h:21:19: fatal error: utility:
No such file or directory compilation terminated.
gmake: *** [kerberos.target.mk:95:
Release/obj.target/kerberos/lib/kerberos.o]
Error 1
gmake: Leaving directory '/home/XX/node/krb/node_
modules/@internal/kerberos/build'
gyp ERR! build error
gyp ERR! stack Error: `gmake` failed with exit code: 2
gyp ERR! stack at ChildProcess.onExit (/QOpenSys/QIBM/ProdData/OPS/
Node6/lib/node_modules/npm/node_modules/node-gyp/lib/build.js:276:23)
gyp ERR! stack at emitTwo (events.js:106:13)
gyp ERR! stack at ChildProcess.emit (events.js:191:7)
gyp ERR! stack at Process.ChildProcess._handle.onexit
(internal/child_process.js:215:12)
gyp ERR! System OS400 7.2
gyp ERR! command "/QOpenSys/QIBM/ProdData/OPS/Node6/bin/node"
"/QOpenSys/QIBM/ProdData/OPS/Node6/lib/node_modules/npm/
node_modules/node-gyp/bin/node-gyp.js" "rebuild"
gyp ERR! cwd /home/XX/node/krb/node_modules/@internal/kerberos
gyp ERR! node -v v6.11.2
gyp ERR! node-gyp -v v3.4.0
gyp ERR! not ok
krb@1.0.0 /home/XX/node/krb
`-- @internal/simple-kerberos@0.0.2
`-- @internal/kerberos@0.0.5

-----Original Message-----
From: OpenSource [mailto:opensource-bounces@xxxxxxxxxxxx] On Behalf Of
Aaron Bartell
Sent: 06 September 2017 14:50
To: IBMi Open Source Roundtable
Subject: Re: [IBMiOSS] node.js - 'module did not self-register' error

I am curious if something didn't build correctly. Could you create a
Github gist (or Bitbucket snippet) with the compile log?

Aaron Bartell
IBM i hosting, starting at $157/month. litmis.com/spaces

On Wed, Sep 6, 2017 at 8:14 AM, Mark Ford <Mark.Ford@xxxxxxxxxxx> wrote:

There's nothing public to see but the kerberos package is
unmodified, as it installs via npm install. I wasn't aware that the
binding.gyp file might need to be modified for IBM i/PASE... I've
just checked it and it has sections for OS=mac, linux and win. Is it
likely it will need another section adding and if so, is there any
advice/guidance on how it should look?

The test script needs nothing more than the require statement for
this module to fail with the error.

-----Original Message-----
From: OpenSource [mailto:opensource-bounces@xxxxxxxxxxxx] On Behalf
Of Aaron Bartell
Sent: 06 September 2017 13:51
To: IBMi Open Source Roundtable
Subject: Re: [IBMiOSS] node.js - 'module did not self-register'
error

Did you end up needing to change binding.gyp for the kerberos npm to
recognize the IBM i OS? Do you have a public fork so we can see?

Aaron Bartell
IBM i hosting, starting at $157/month. litmis.com/spaces

On Wed, Sep 6, 2017 at 7:45 AM, Mark Ford <Mark.Ford@xxxxxxxxxxx> wrote:

Yes, the install of the package (and therefore node-gyp/compile)
was performed just prior to running it. I've only just got far
enough today to get the compile step working.

For info, the versions we have are:

node -v

v6.11.2

npm -v

3.10.10

-----Original Message-----
From: OpenSource [mailto:opensource-bounces@xxxxxxxxxxxx] On
Behalf Of Aaron Bartell
Sent: 06 September 2017 13:39
To: IBMi Open Source Roundtable
Subject: Re: [IBMiOSS] node.js - 'module did not self-register'
error

I can see from Google that this is a fairly common issue and is
normally

down to a mismatch with the version of node, which shouldn't be
the case here.

I'd be curious if a different version of Node.js was present at
~compile~
(gcc/node-gyp) time of the kerberos npm vs. run time. Can you
confirm the same Node.js version was used at kerberos compile and
run

time?

Aaron Bartell
IBM i hosting, starting at $157/month. litmis.com/spaces

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