Compiling on alpine

[waghanza]

Hi @ohler55,

Trying to install on alpine, I have

dtime.c:11:31: error: 'CLOCK_REALTIME' undeclared (first use in this function); did you mean 'CLOCK_REALTIME_COURSE'?
 #define CLOCK_REALTIME_COURSE CLOCK_REALTIME

while using gem install agoo

I'm on

• ruby 2.6
• gem 3.06

Regards,

---

edit : maybe related to #14

[ohler55]

That is odd. Was that the only error or were there complaints about missing header files as well?

[waghanza]

This the only missing thing in the-benchmarker/web-frameworks#1968.

I have update the full log in https://gist.github.com/bedc4fb00ab91574fb91b53958214ba5

• Alpine Linux 3.10
• gcc (Alpine 8.3.0) 8.3.0

[ohler55]

Thanks. Has something changed since the last time? It looks like the headers are no longer the same and no longer POSIX.

[waghanza]

Yep, I've also had some issues on alpine, see the PR with https://github.com/criticalstack/libevhtp

[ohler55]

Which PR was that. I saw 6 but didn't know which was relevant.

[ohler55]

Doing a little research it looks like Alpine might need the use of either -D_POSIX_SOURCE or maybe a #define _POSIX_C_SOURCE 199506L I'll do some experimenting with docker.

Can you verify that you've done something like this:

RUN apk update
&& apk add --virtual build-dependencies
build-base

[waghanza]

seems to be the same with the docker line you gave me

I also see the #define _POSIX_C_SOURCE 199506L source when searching around on stackoverflow, but I have no C skill to PR 😛

[ohler55]

I pulled your branch and did a docker build with no errors. Of course the Dockerfile generated FROM ruby:2.6. What should I use to get the failure you are seeing?

[waghanza]

Run

shards install
shards build
bin/make config

This should create a Dockerfile in ruby/agoo.

The idea is that this error occurred on bundle install. If you run into the container, (with this line and after commented), you will see the compilation error

[ohler55]

okay, will try from in the container. I'll try Sunday. Traveling today.

[ohler55]

I'm not sure what the difference is but even from in the container I don't see any build errors. The Dockerfile is using the ruby:2.6 image. Is that the same for you? I used the use_alpine branch but can't seem to make it fail.

[waghanza]

Ah sorry, yes.

The official image use Debian but I want to switch to alpine since less heavy

[ohler55]

Right, so where can I find the alpine images or get them hooked into the shard/neph build environment?

[ohler55]

So, if I don't use the neph stuff and just go for a custom Dockerfile from ruby:2.6.5-alpine I do get errors indicating the build environment isn't there. If that is the correct starting point I'll see what has to be added to make it work.

[ohler55]

This worked for me with a change in Agoo to put in two compile directives.

FROM ruby:2.6.5-alpine

WORKDIR /usr/src/app

COPY . ./

RUN apk add --update build-base

RUN bundle install --without development test

ENV AGOO_WORKER_COUNT $(nproc)

CMD ruby app.rb

I suspect Aggo-C will need the same directives.

I would like to update the apps for both as well to match some changes in the graphql-benchmarks. @waghanza , I put you as a reviewer. Anyway if you would like me to make the changes on your fork, let me know and I can branch as long as I am a collaborator..

[waghanza]

Sure, go on. ❤️

[ohler55]

PR is ready for you.