sdl12-compat: CI: still trying to get these headers in the right place...

From f1a2e795230d9d3c68d60afbee772e8fa707e0e9 Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <[EMAIL REDACTED]>
Date: Tue, 1 Jun 2021 18:34:43 -0400
Subject: [PATCH] CI: still trying to get these headers in the right place...

---
 .github/workflows/main.yml | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 910e21e..692f04f 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -18,17 +18,16 @@ jobs:
       run: |
         sudo apt-get update
         sudo apt-get install cmake ninja-build
+    - name: Get sdl12-compat sources
+      uses: actions/checkout@v2
     - name: Get SDL2 headers
       uses: actions/checkout@v2
       with:
         repository: libsdl-org/SDL
         ref: release-2.0.14
-        path: SDL2
-    - name: Get sdl12-compat sources
-      uses: actions/checkout@v2
+        path: sdl12-compat/SDL2
     - name: Configure CMake
       run: cmake -DSDL2_INCLUDE_DIR="${{ github.workspace }}/SDL2/include" -B build ${{ matrix.platform.flags }}
     - name: Build
-      working-directory: build
-      run: cmake --build .
+      run: cmake --build build/