use diff method

.github/workflows/release.yml

@@ -63,17 +63,24 @@ jobs:
       - name: Set environment variables for cross-compilation
         if: matrix.arch == 'arm64' && matrix.os == 'ubuntu-latest'
         run: |
-          export CC=aarch64-linux-gnu-gcc
-          export CXX=aarch64-linux-gnu-g++
+          echo "CC=aarch64-linux-gnu-gcc" >> $GITHUB_ENV
+          echo "CXX=aarch64-linux-gnu-g++" >> $GITHUB_ENV
+          echo "AR=aarch64-linux-gnu-ar" >> $GITHUB_ENV
+          echo "PKG_CONFIG_PATH=/usr/aarch64-linux-gnu/lib/pkgconfig:/usr/lib/aarch64-linux-gnu/pkgconfig" >> $GITHUB_ENV
+          echo "PKG_CONFIG_SYSROOT_DIR=/usr/aarch64-linux-gnu" >> $GITHUB_ENV
 
-      - name: Install pkg-config for ARM64
+      - name: Install ARM64 development libraries (example: zlib)
         if: matrix.arch == 'arm64' && matrix.os == 'ubuntu-latest'
-        run: sudo apt-get update && sudo apt-get install -y pkg-config-aarch64-linux-gnu
+        run: sudo apt-get install -y libz-dev:aarch64
 
-      - name: Set pkg-config environment variable for cross-compilation
-        if: matrix.arch == 'arm64' && matrix.os == 'ubuntu-latest'
+      - name: Debug environment variables
         run: |
-          echo "PKG_CONFIG=aarch64-linux-gnu-pkg-config" >> $GITHUB_ENV
+          echo "CC is set to: $CC"
+          echo "CXX is set to: $CXX"
+          echo "PKG_CONFIG is set to: $PKG_CONFIG"
+          echo "PKG_CONFIG_PATH is set to: $PKG_CONFIG_PATH"
+          which $CC
+
 
       - name: Check out code
         uses: actions/checkout@v4