CI: build examples

Signed-off-by: Stephen Gutekanst <stephen@hexops.com>

.github/workflows/ci.yml

@@ -43,6 +43,8 @@ jobs:
           sudo add-apt-repository -y ppa:kisak/kisak-mesa
           sudo apt-get update
           sudo apt-get install mesa-utils mesa-utils-extra mesa-va-drivers mesa-vdpau-drivers mesa-vulkan-drivers xvfb pulseaudio jackd
+      - name: build
+        run: zig build
       - name: test
         run: zig build test
       - name: test (with core deps only)
@@ -76,6 +78,8 @@ jobs:
           cd C:\
           7z x zig.zip
           Add-Content $env:GITHUB_PATH 'C:\zig-windows-x86_64-0.13.0-dev.351+64ef45eb0\'
+      - name: build
+        run: zig build
       - name: test
         run: zig build test
   x86_64-macos:
@@ -91,5 +95,7 @@ jobs:
           brew uninstall --ignore-dependencies libx11 # https://github.com/ziglang/zig/issues/11066
           brew install xz
           sudo sh -c 'wget -c https://pkg.machengine.org/zig/zig-macos-x86_64-0.13.0-dev.351+64ef45eb0.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
+      - name: build
+        run: zig build
       - name: test
         run: zig build test