Work around for Android builds using GCC for cross compiler native tools build (#88345)

* Work around for Android builds using GCC for cross compiler native tools build

* Allow true cross-compiled cross-compiler during Android repo builds

Author: directhex

eng/native/build-commons.sh

@@ -78,7 +78,7 @@ build_native()
         cmakeArgs="-DCMAKE_SYSTEM_VARIANT=maccatalyst $cmakeArgs"
     fi
 
-    if [[ ( "$targetOS" == android || "$targetOS" == linux-bionic ) && -z "$ROOTFS_DIR" ]]; then
+    if [[ "$targetOS" == android || "$targetOS" == linux-bionic ]]; then
         if [[ -z "$ANDROID_NDK_ROOT" ]]; then
             echo "Error: You need to set the ANDROID_NDK_ROOT environment variable pointing to the Android NDK root."
             exit 1

eng/pipelines/common/templates/pipeline-with-resources.yml

@@ -36,7 +36,7 @@ resources:
 
     # This container contains all required toolsets to build for Android and for Linux with bionic libc.
     - container: linux_bionic
-      image: mcr.microsoft.com/dotnet-buildtools/prereqs:cbl-mariner-2.0-android
+      image: mcr.microsoft.com/dotnet-buildtools/prereqs:cbl-mariner-2.0-cross-android-amd64
 
     # This container contains all required toolsets to build for Android as well as tooling to build docker images.
     - container: android_docker

src/mono/mono.proj

@@ -772,7 +772,7 @@
 
     <!-- Android specific options -->
     <PropertyGroup Condition="'$(TargetsAndroid)' == 'true' or '$(TargetsLinuxBionic)' == 'true'">
-      <_MonoSkipInitCompiler>true</_MonoSkipInitCompiler>
+      <_MonoSkipInitCompiler>false</_MonoSkipInitCompiler>
 
       <MonoUseCrossTool>true</MonoUseCrossTool>
       <MonoAotCMakeSysroot Condition="Exists('$(ANDROID_NDK_ROOT)/sysroot')">$(ANDROID_NDK_ROOT)/sysroot</MonoAotCMakeSysroot>