diff --git a/.drone.yml b/.drone.yml
index 53f4649..b2c294a 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -15,7 +15,7 @@ steps:
       - sed -i 's@//.*archive.ubuntu.com@//mirror-cdn.xtom.com@g' /etc/apt/sources.list &&
         sed -i 's@//security.ubuntu.com@//mirror-cdn.xtom.com@g' /etc/apt/sources.list
       - apt update &&
-        apt install -y git make gcc libgmp-dev libmpfr-dev libmpc-dev gcc-multilib
+        apt install -y git make gcc g++ libgmp-dev libmpfr-dev libmpc-dev gcc-multilib
       - bash build.sh
     environment:
       GITEA_ENDPOINT: https://git.m.ac
diff --git a/build/.gitkeep b/build/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/deb/.gitkeep b/deb/.gitkeep
new file mode 100644
index 0000000..e69de29