Fix workflow trigger to build linux and macos

.github/workflows/build.yml

@@ -45,17 +45,19 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
         shared: [0, 1]
         include:
           - os: ubuntu-latest
             os_name: Linux
             os_name_lowercase: linux
           - os: macos-latest
-            os_name: MacOS
+            os_name: macOS
             os_name_lowercase: macos
           - os: windows-latest
             os_name: Windows
             os_name_lowercase: windows
+
     name: Build ${{ matrix.os_name }} (${{ matrix.shared == 0 && 'Static' || 'Shared' }})
     runs-on: ${{ matrix.os }}
     steps:
@@ -73,14 +75,14 @@ jobs:
             libiconv-devel
             make
 
-      - name: Build
+      - name: Build (Windows)
         if: matrix.os_name_lowercase == 'windows'
         shell: msys2 {0}
         env:
           SHARED: ${{ matrix.shared }}
         run: make
 
-      - name: Build
+      - name: Build (Linux/macOS)
         if: matrix.os_name_lowercase != 'windows'
         env:
           SHARED: ${{ matrix.shared }}