From cd61968f01e2524efd2a289755d0cd2ecc923d25 Mon Sep 17 00:00:00 2001
From: project6 <dev@project6.io>
Date: Mon, 10 Aug 2026 08:18:45 +0000
Subject: [PATCH] fix(build): install gcc + ninja-build before compilation

Docker build fails if base image lacks gcc (needed for ex_registry.c)
and ninja (needed for torch.utils.cpp_extension). Install both in a
dedicated RUN layer before build.sh and patch_ops.sh.
---
 Dockerfile | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Dockerfile b/Dockerfile
index 2a754f2a..162b5e61 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,6 +7,10 @@ COPY ./qwen3_6_scripts /workspace/qwen3_6_scripts
 COPY ./computility-run.yaml /workspace/computility-run.yaml
 COPY ./ex_engine /workspace/ex_engine
 
+RUN apt-get update -qq && \
+    apt-get install -y -qq gcc ninja-build && \
+    rm -rf /var/lib/apt/lists/*
+
 RUN chmod +x /workspace/ex_engine/build.sh && \
     bash /workspace/ex_engine/build.sh --corex