diff --git a/portage-make.conf b/portage-make.conf
new file mode 100644
index 0000000..34c3eeb
--- /dev/null
+++ b/portage-make.conf
@@ -0,0 +1,23 @@
+# These settings were set by the catalyst build script that automatically
+# built this stage.
+# Please consult /usr/share/portage/config/make.conf.example for a more
+# detailed example.
+COMMON_FLAGS="-march=native -O2 -pipe"
+CFLAGS="${COMMON_FLAGS}"
+CXXFLAGS="${COMMON_FLAGS}"
+FCFLAGS="${COMMON_FLAGS}"
+FFLAGS="${COMMON_FLAGS}"
+
+# NOTE: This stage was built with the bindist Use flag enabled
+PORTDIR="/var/db/repos/gentoo"
+DISTDIR="/var/cache/distfiles"
+PKGDIR="/var/cache/binpkgs"
+
+# This sets the language of build output to English.
+# Please keep this setting intact when reporting bugs.
+LC_MESSAGES=C
+
+MAKEOPTS="-j5"
+#GENTOO_MIRRORS="https://mirrors.163.com/gentoo/ http://mirrors.163.com/gentoo/"
+SYNC="rsync://mirrors.ustc.edu.cn/gentoo-portage/"
+GENTOO_MIRRORS="http://mirrors.aliyun.com/gentoo/"