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I can't get IJavascript working anymore. It hasn't seen updates since 2022, and isn't compatible with the latest ZeroMQ.

tslab is a good alternative. It also supports TypeScript.

If I run npm install -g --omit=dev --prefix . --cache . ijavascript outside of the chroot, it builds just fine and nan.h is found in ./lib/node_modules/ijavascript/node_modules/nan/nan.h. But when I build the package in chroot, the ${pkgdir}/usr/lib dir is completely empty after the error. There is probably some cleanup that makes debugging hard...

@lahwaacz Sorry I'm really unsure what's going on then. Could you perhaps try to install the ijavascript package manually as an NPM package? See if that builds or not.

@simonzack I'm building in a clean chroot too /o\

@lahwaacz I actually just tried it out in a clean chroot just now. Builds fine. I clean all caches pretty often anyway. Guess you need to try building in a clean chroot then.

@simonzack Weird, I can't find nan.h anywhere in the build tree. Did you build in a clean chroot? Can you try removing the sources if they are cached?

@lahwaacz Can you find nan.h anywhere in the build directory? I actually had to rebuild this just yesterday and it worked for me.

The package does not build:

...
npm ERR! /bin/sh: line 1: cd: ../.: Not a directory
npm ERR! /build/ijavascript/pkg/ijavascript/usr/lib/node_modules/ijavascript/node_modules/zeromq/scripts/build_libzmq.sh: line 24: cd: /build/ijavascript/pkg/ijavascript/usr/lib/node_modules/ijavascript/node_modules/zeromq/scripts/../zmq: Not a directory
npm ERR! cc1plus: warning: ../../nan: not a directory
npm ERR! ../binding.cc:40:10: fatal error: nan.h: No such file or directory
npm ERR!    40 | #include "nan.h"
npm ERR!       |          ^~~~~~~
npm ERR! compilation terminated.
npm ERR! make: *** [zmq.target.mk:116: Release/obj.target/zmq/binding.o] Error 1
...

The 5.2.1 update changed the kernel display_name. This shows up on the top right of the Jupyter page.

This is just a cosmetic issue. But to update this, delete ~/.local/share/jupyter/kernels/* and refresh the page.

@igvalor I tried that, but for me installation fails with a C++ compiler error:

make[1]: Entering directory '/home/languitar/abs/ijavascript/pkg/ijavascript/usr/lib/node_modules/ijavascript/node_modules/zeromq/zmq/zeromq-4.2.2'
  CXX      src/src_libzmq_la-address.lo
  CXX      src/src_libzmq_la-client.lo
In file included from /usr/include/errno.h:25,
                 from src/../include/zmq.h:56,
                 from src/precompiled.hpp:41,
                 from src/client.cpp:30:
/usr/include/features.h:381:4: error: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Werror=cpp]
 #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
    ^~~~~~~
In file included from /usr/include/errno.h:25,
                 from src/../include/zmq.h:56,
                 from src/precompiled.hpp:41,
                 from src/address.cpp:30:
/usr/include/features.h:381:4: error: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Werror=cpp]
 #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
    ^~~~~~~
cc1plus: all warnings being treated as errors
make[1]: *** [Makefile:3283: src/src_libzmq_la-client.lo] Error 1
make[1]: *** Waiting for unfinished jobs....
cc1plus: all warnings being treated as errors
make[1]: *** [Makefile:3276: src/src_libzmq_la-address.lo] Error 1
make[1]: Leaving directory '/home/languitar/abs/ijavascript/pkg/ijavascript/usr/lib/node_modules/ijavascript/node_modules/zeromq/zmq/zeromq-4.2.2'
make: *** [Makefile:4044: all-recursive] Error 1
child process exited with code 2
make: Entering directory '/home/languitar/abs/ijavascript/pkg/ijavascript/usr/lib/node_modules/ijavascript/node_modules/zeromq/build'
  CXX(target) Release/obj.target/zmq/binding.o
In file included from ../binding.cc:40:

That's where I was stuck.