From d3d6fb5c257f30c5c2ef764fe66b5748f56c79cf Mon Sep 17 00:00:00 2001
From: dijunkun <dijunkun@zhejianglab.com>
Date: Thu, 30 Jul 2026 17:55:30 +0800
Subject: [PATCH] docs: use GCC 10 toolchain for Linux builds

---
 README.md    | 10 +++++++---
 README_EN.md | 12 +++++++++---
 2 files changed, 16 insertions(+), 6 deletions(-)

diff --git a/README.md b/README.md
index ffb5b86..0876987 100644
--- a/README.md
+++ b/README.md
@@ -127,17 +127,21 @@ git submodule update --init --recursive
 # 已安装发行版 PipeWire 0.3 开发包时可跳过此步骤。
 sudo ./docker/linux-build/install-pipewire-sdk.sh
 
-xmake f -m release --USE_CUDA=false --cc=gcc-10 --cxx=g++-10 -y
+xmake f -c -m release --USE_CUDA=false --toolchain=gcc-10 -y
 xmake b -vy crossdesk
 ```
 
+这里应使用 `--toolchain=gcc-10`，以确保 CrossDesk 及 xmake 在配置阶段构建的
+libyuv 等第三方包都使用 GCC 10。只指定 `--cc`/`--cxx` 时，依赖安装可能仍回退到
+系统默认的 `/bin/cc` 和 `/bin/c++`。`-c` 会清除旧配置，切换编译器时必须保留。
+
 amd64 构建结果位于 `build/linux/x86_64/release/crossdesk`，arm64 构建结果位于 `build/linux/arm64/release/crossdesk`。
 
 启用 Wayland 和 DRM 的配置示例：
 
 ```bash
-xmake f -m release --USE_WAYLAND=true --USE_DRM=true --USE_CUDA=false \
-  --cc=gcc-10 --cxx=g++-10 -y
+xmake f -c -m release --USE_WAYLAND=true --USE_DRM=true --USE_CUDA=false \
+  --toolchain=gcc-10 -y
 xmake b -vy crossdesk
 ```
 
diff --git a/README_EN.md b/README_EN.md
index 11ca598..7f9a048 100644
--- a/README_EN.md
+++ b/README_EN.md
@@ -136,17 +136,23 @@ git submodule update --init --recursive
 # PipeWire 0.3 development packages are already installed.
 sudo ./docker/linux-build/install-pipewire-sdk.sh
 
-xmake f -m release --USE_CUDA=false --cc=gcc-10 --cxx=g++-10 -y
+xmake f -c -m release --USE_CUDA=false --toolchain=gcc-10 -y
 xmake b -vy crossdesk
 ```
 
+Use `--toolchain=gcc-10` so that both CrossDesk and third-party packages such
+as libyuv, which xmake builds during configuration, use GCC 10. Specifying only
+`--cc`/`--cxx` may still let dependency builds fall back to the system
+`/bin/cc` and `/bin/c++`. Keep `-c` when switching compilers to clear the old
+configuration.
+
 The amd64 binary is written to `build/linux/x86_64/release/crossdesk`; the arm64 binary is written to `build/linux/arm64/release/crossdesk`.
 
 Example configuration with Wayland and DRM capture enabled:
 
 ```bash
-xmake f -m release --USE_WAYLAND=true --USE_DRM=true --USE_CUDA=false \
-  --cc=gcc-10 --cxx=g++-10 -y
+xmake f -c -m release --USE_WAYLAND=true --USE_DRM=true --USE_CUDA=false \
+  --toolchain=gcc-10 -y
 xmake b -vy crossdesk
 ```