From 1af7deaeb37e567fd8da75ce7c8123df954a25ec Mon Sep 17 00:00:00 2001
From: Richard Darst <rkd@zgib.net>
Date: Sat, 28 Dec 2019 11:56:31 +0200
Subject: [PATCH] Dockerfile: add build-essential to builder image

- While debugging another problem, I noticed some failures to build
  the C extensions in the logs.  Adding build-essential should fix
  that (also as mentioned in the logs themselves).
- Extensions failed for tornado, sqlalchemy, and pyrsistent(pvectorc)
  and can be found by searching the previous output for "fail".
---
 Dockerfile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Dockerfile b/Dockerfile
index 98697986..f20d1351 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -30,6 +30,7 @@ USER root
 ENV DEBIAN_FRONTEND noninteractive
 RUN apt-get update \
  && apt-get install -yq --no-install-recommends \
+    build-essential \
     ca-certificates \
     locales \
     python3-dev \