From 7350fb73709e90f1f6a0f3157b6d29e82efa679f Mon Sep 17 00:00:00 2001
From: Philip Salzmann <philip.salzmann@uibk.ac.at>
Date: Fri, 14 Jul 2023 14:48:55 +0200
Subject: [PATCH] CI: Bring back ccache for DPC++

This was lost in the switch to the DPC++ nightly containers (#712).
---
 docker/dpcpp/Dockerfile | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/docker/dpcpp/Dockerfile b/docker/dpcpp/Dockerfile
index 741cbc277..053d89d37 100644
--- a/docker/dpcpp/Dockerfile
+++ b/docker/dpcpp/Dockerfile
@@ -4,4 +4,11 @@ ARG IMPL_VERSION
 
 FROM ghcr.io/intel/llvm/sycl_ubuntu2204_nightly:no-drivers-$IMPL_VERSION
 
+RUN export DEBIAN_FRONTEND=noninteractive && \
+    apt update && \
+    apt install -y --no-install-recommends \
+      ccache && \
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists*
+
 COPY configure.sh /scripts/