Fix missing jsoncpp in the Docker image

diff --git a/Dockerfile b/Dockerfile
index 871ca982552b2ac9d2291af9767e2eeeb10058d7..33eba64cae1f97a3bb78c5608431a14414ff5627 100644 (file)
--- a/Dockerfile
+++ b/Dockerfile
@@ -51,7 +51,7 @@ RUN mkdir build && \
 
 FROM alpine:3.11
 
-RUN apk add --no-cache sqlite-libs curl gmp libstdc++ libgcc libpq luajit && \
+RUN apk add --no-cache sqlite-libs curl gmp libstdc++ libgcc libpq luajit jsoncpp && \
        adduser -D minetest --uid 30000 -h /var/lib/minetest && \
        chown -R minetest:minetest /var/lib/minetest