"yaz-config: not found" error while installing library on Debian

[pvoisin]

I'm dropping this here before I can propose a PR (hopefully). Originally (few months ago) I made a quick attempt to build a Docker image based on Debian (node:slim) with node-zoom2 installed. Here's the problem I've faced (still facing it today):

#9 7.685 npm ERR! /bin/sh: 1: yaz-config: not found
#9 7.685 npm ERR! gyp: Call to 'yaz-config --libs' returned exit status 127 while in binding-not-win.gyp. while loading dependencies of binding.gyp while trying to load binding.gyp
#9 7.685 npm ERR! gyp ERR! configure error 
#9 7.685 npm ERR! gyp ERR! stack Error: `gyp` failed with exit code: 1
#9 7.685 npm ERR! gyp ERR! stack     at ChildProcess.onCpExit (/usr/local/lib/node_modules/npm/node_modules/node-gyp/lib/configure.js:325:16)
#9 7.685 npm ERR! gyp ERR! stack     at ChildProcess.emit (node:events:514:28)
#9 7.685 npm ERR! gyp ERR! stack     at ChildProcess._handle.onexit (node:internal/child_process:294:12)
#9 7.685 npm ERR! gyp ERR! System Linux 5.15.49-linuxkit
#9 7.685 npm ERR! gyp ERR! command "/usr/local/bin/node" "/usr/local/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "rebuild"
#9 7.685 npm ERR! gyp ERR! cwd /usr/src/app/node_modules/node-zoom2
#9 7.685 npm ERR! gyp ERR! node -v v20.8.0
#9 7.685 npm ERR! gyp ERR! node-gyp -v v9.4.0
#9 7.685 npm ERR! gyp ERR! not ok

It seems that yaz-config doesn't exist (maybe it isn't shipped anymore with yaz or libyaz-dev). Instead, pkg-config yaz works and with the following trick I was able to build the image:

FROM node:slim

...

RUN \
  npm install node-zoom2 --ignore-scripts \
  && LIBS=`pkg-config yaz --libs` \
  && CFLAGS=`pkg-config yaz --cflags` \
  && sed -i -E 's#"cflags": \[.+\]#"cflags": ["'"$CFLAGS"'"]#' ./node_modules/node-zoom2/binding-not-win.gyp \
  && sed -i -E 's#"libraries": \[.+\]#"libraries": ["'"$LIBS"'"]#' ./node_modules/node-zoom2/binding-not-win.gyp \
  && npm rebuild

...

I admit this isn't very clean but, as I'm no Linux/C++/Make expert, I couldn't find another (quick) solution.

So, @dengelke, if you have any recommendation to make this fit into the project I'd be very pleased to hear about it! :)

[pvoisin]

@sylvain-ville - FYI

[dengelke]

Thanks @pvoisin for pointing this out - I'll try to create a Dockerfile using node:slim to test this out