rustc v1.78, nightly, and glibc fixes

.github/workflows/rust.yml

@@ -94,7 +94,7 @@ jobs:
       - uses: actions-rs/toolchain@v1
         with:
           profile: minimal
-          toolchain: 1.76.0
+          toolchain: 1.78.0
           target: wasm32-unknown-unknown
           override: true
       - name: Download and install Trunk binary
@@ -131,24 +131,36 @@ jobs:
     - uses: actions/checkout@master
     - name: Install build dependencies - Rustup
       run: |
-        curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- --default-toolchain stable --profile default --target ${{ matrix.TARGET }} -y
+        curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- --default-toolchain nightly --profile default --target ${{ matrix.TARGET }} -y
         echo "$HOME/.cargo/bin" >> $GITHUB_PATH
 
     # For linux, it's necessary to use cross from the git repository to avoid glibc problems
     # Ref: https://github.com/cross-rs/cross/issues/1510
     - name: Install cross for linux
       if: contains(matrix.TARGET, 'linux')
       run: |
-        cargo install cross --git https://github.com/cross-rs/cross --rev 1b8cf50d20180c1a394099e608141480f934b7f7
+        cargo install cross --git https://github.com/cross-rs/cross --rev 4090beca3cfffa44371a5bba524de3a578aa46c3
 
-    - name: Install cross for mac and windows
+   - name: Install cross for mac and windows
       if: ${{ !contains(matrix.TARGET, 'linux') }}
       run: |
         cargo install cross
 
+    - name: Install dependencies
+      if: contains(matrix.TARGET, 'linux')
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y libglib2.0-dev pkg-config
+
+    - name: Set PKG_CONFIG_PATH
+      if: contains(matrix.TARGET, 'linux')
+      run: echo "PKG_CONFIG_PATH=/usr/lib/x86_64-linux-gnu/pkgconfig:/usr/share/pkgconfig" >> $GITHUB_ENV
+
     - name: Build
       run: |
         cross build --verbose --release --target=${{ matrix.TARGET }}
+      env:
+        PKG_CONFIG_ALLOW_CROSS: 1
 
     - name: Rename
       run: cp target/${{ matrix.TARGET }}/release/egui-multinode${{ matrix.EXTENSION }} egui-multinode-${{ matrix.TARGET }}${{ matrix.EXTENSION }}