From 73bdda974811717baccc05ea3e23f607817fbc8a Mon Sep 17 00:00:00 2001
From: Ed Morley <501702+edmorley@users.noreply.github.com>
Date: Thu, 9 May 2024 18:49:06 +0100
Subject: [PATCH] Install `libreadline-dev` on Heroku-24 (#43)

Since it's no longer in the Heroku-24 build image after:
https://github.com/heroku/base-images/pull/296

(The headers are only needed when the Ruby runtimes are being compiled. The run image still has the necessary runtime library counterparts.)

See also:
https://github.com/heroku/heroku-buildpack-python/pull/1580
---
 dockerfiles/Dockerfile.heroku-24 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dockerfiles/Dockerfile.heroku-24 b/dockerfiles/Dockerfile.heroku-24
index 778926b..692adaf 100644
--- a/dockerfiles/Dockerfile.heroku-24
+++ b/dockerfiles/Dockerfile.heroku-24
@@ -6,7 +6,7 @@ USER root
 RUN rm -rf /tmp/workspace
 RUN mkdir -p /tmp/workspace
 
-RUN apt-get update -y; apt-get install ruby -y
+RUN apt-get update -y && apt-get install -y libreadline-dev ruby
 RUN curl https://sh.rustup.rs -sSf | sh -s -- -y
 ENV PATH="/root/.cargo/bin:${PATH}"