[Linux] Try to build with g++ 10, as the default one fails for libLLVMLTO

Author: grendello

.github/workflows/ci.yml

@@ -29,6 +29,9 @@ jobs:
 
       - name: build Linux LLVM
         run: ./build-llvm.sh
+        env:
+          CC: gcc-10
+          CXX: g++-10
 
       - name: package LLVM config and build logs
         if: ${{ always() }}
@@ -63,7 +66,10 @@ jobs:
           sudo apt-get -f -u install mingw-w64 cmake ninja-build xz-utils zlib1g-dev libz-mingw-w64-dev
 
       - name: build Linux and Windows Xamarin.Android Utilities
-        run: CC=gcc-10 CXX=g++-10 ./build-xa-utils.sh
+        run: ./build-xa-utils.sh
+        env:
+          CC: gcc-10
+          CXX: g++-10
 
       - name: package Xamarin.Android Utilities config and build logs
         if: ${{ always() }}