diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1b5d92fc..21ec1ed4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -9,126 +9,37 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - name: makeInit
-        run: |
-          make LDEF=0 LZMA=0 ZSTD=0 MD5=0 -j
-          make LDEF=0 LZMA=0 ZSTD=0 MD5=0 clean
-      - name: makeNoAll
         run: |
           git clone --depth=1 https://github.com/sisong/libmd5.git ../libmd5
           git clone --depth=1 https://github.com/sisong/lzma.git ../lzma
           git clone --depth=1 https://github.com/sisong/zstd.git ../zstd
-          make DIR_DIFF=0 MT=0 BSD=0 VCD=0 ZLIB=0 LDEF=0 BZIP2=0 -j
-          make DIR_DIFF=0 MT=0 BSD=0 VCD=0 ZLIB=0 LDEF=0 BZIP2=0 clean
+          git clone --depth=1 https://github.com/sisong/zlib.git ../zlib
+          git clone --depth=1 https://github.com/sisong/libdeflate.git ../libdeflate
       - name: makeNoldef
         run: |
           make LDEF=0 -j
           make LDEF=0 clean
-      - name: makeAll
-        run: |
-          git clone --depth=1 https://github.com/sisong/zlib.git ../zlib
-          git clone --depth=1 https://github.com/sisong/libdeflate.git ../libdeflate
-          make -j
-          make clean
-      - name: makeByBz2Code
-        run: |
-          git clone --depth=1 https://github.com/sisong/bzip2.git ../bzip2
-          make BZIP2=1 -j
-
-  clang-build:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - name: installClang
-        run: |
-          sudo apt-get install -y llvm clang
-      - name: initAndClone
-        run: |
-          git clone --depth=1 https://github.com/sisong/libmd5.git ../libmd5
-          git clone --depth=1 https://github.com/sisong/lzma.git ../lzma
-          git clone --depth=1 https://github.com/sisong/zstd.git ../zstd
-          git clone --depth=1 https://github.com/sisong/zlib.git ../zlib
-          git clone --depth=1 https://github.com/sisong/libdeflate.git ../libdeflate
-      - name: makeByClang
-        run: |
-          make CL=1 -j
 
-  xcode-build:
-    runs-on: macos-latest
+  make-build2:
+    strategy:
+      matrix:
+        platform: [ubuntu-latest, macos-latest]
+    runs-on: ${{ matrix.platform }}
     steps:
       - uses: actions/checkout@v2
-      - name: initAndClone
+      - name: makeInit
         run: |
           git clone --depth=1 https://github.com/sisong/libmd5.git ../libmd5
           git clone --depth=1 https://github.com/sisong/lzma.git ../lzma
           git clone --depth=1 https://github.com/sisong/zstd.git ../zstd
           git clone --depth=1 https://github.com/sisong/zlib.git ../zlib
           git clone --depth=1 https://github.com/sisong/libdeflate.git ../libdeflate
-      - name: buildByXcode
-        run: |
-          xcodebuild -workspace builds/xcode/HDiffPatch.xcworkspace -scheme hdiffz -configuration Release OBJROOT=$PWD/bin SYMROOT=$PWD/bin
-          xcodebuild -workspace builds/xcode/HDiffPatch.xcworkspace -scheme hpatchz -configuration Release OBJROOT=$PWD/bin SYMROOT=$PWD/bin
-          xcodebuild -workspace builds/xcode/HDiffPatch.xcworkspace -scheme unitTest -configuration Release OBJROOT=$PWD/bin SYMROOT=$PWD/bin
-
-  macos-ndk-build:
-    runs-on: macos-latest
-    steps:
-      - uses: actions/checkout@v2
-      - uses: nttld/setup-ndk@v1.5.0
-        with:
-          ndk-version: r23c
-      - name: buildByAndroidNDK
-        run: |
-          git clone --depth=1 https://github.com/sisong/lzma.git ../lzma
-          git clone --depth=1 https://github.com/sisong/zstd.git ../zstd
-          cd ./builds/android_ndk_jni_mk
-          ndk-build NDK_PROJECT_PATH=. NDK_APPLICATION_MK=./Application.mk APP_PLATFORM=android-16 APP_ABI=all
-
-  windows-ndk-build:
-    runs-on: windows-latest
-    steps:
-      - uses: actions/checkout@v2
-      - uses: nttld/setup-ndk@v1.5.0
-        with:
-          ndk-version: r16b
-      - name: buildByAndroidNDK
-        run: |
-          git clone --depth=1 https://github.com/sisong/lzma.git ../lzma
-          git clone --depth=1 https://github.com/sisong/zstd.git ../zstd
-          git clone --depth=1 https://github.com/sisong/bzip2.git ../bzip2
-          cd ./builds/android_ndk_jni_mk
-          ndk-build NDK_PROJECT_PATH=. NDK_APPLICATION_MK=./Application.mk BSD=1 BZIP2=1
-
-  ubuntu-ndk-build:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - uses: nttld/setup-ndk@v1.5.0
-        with:
-          ndk-version: r16b
-      - name: buildByAndroidNDK
+      - name: makeAll
         run: |
-          sudo apt install libncurses5
-          git clone --depth=1 https://github.com/sisong/lzma.git ../lzma
-          git clone --depth=1 https://github.com/sisong/bzip2.git ../bzip2
-          git clone --depth=1 https://github.com/sisong/zstd.git ../zstd
-          cd ./builds/android_ndk_jni_mk
-          ndk-build NDK_PROJECT_PATH=. NDK_APPLICATION_MK=./Application.mk BSD=1 BZIP2=1 VCD=1
-
-  vc-build:
-    runs-on: windows-latest
-    steps:
-      - uses: actions/checkout@v2
-      - uses: microsoft/setup-msbuild@v1.1
-        with:
-          msbuild-architecture: x64
-      - name: initAndClone
+          make -j
+          make clean
+      - name: makeByBz2Code
         run: |
-          git clone --depth=1 https://github.com/sisong/libmd5.git ../libmd5
-          git clone --depth=1 https://github.com/sisong/lzma.git ../lzma
-          git clone --depth=1 https://github.com/sisong/zstd.git ../zstd
           git clone --depth=1 https://github.com/sisong/bzip2.git ../bzip2
-          git clone --depth=1 https://github.com/sisong/zlib.git ../zlib
-          git clone --depth=1 https://github.com/sisong/libdeflate.git ../libdeflate
-      - name: buildByVC
-        run: |
-          msbuild builds/vc/HDiffPatch.sln -t:rebuild -verbosity:diag -property:Configuration=Release
+          make BZIP2=1 -j
+          make BZIP2=1 clean
\ No newline at end of file