Pick libmonosgen-2.0.so from cmake install directory instead of .libs (#44291)

This aligns Linux with what we already do for all the other platforms.

Author: akoeplinger

src/mono/mono.proj

@@ -142,6 +142,7 @@
     <ItemGroup>
       <_MonoCMakeArgs Condition="'$(MonoBuildTool)' == 'ninja'" Include="-G Ninja"/>
       <_MonoCMakeArgs Include="-DCMAKE_INSTALL_PREFIX=$(MonoObjDir)out"/>
+      <_MonoCMakeArgs Include="-DCMAKE_INSTALL_LIBDIR=lib"/>
       <_MonoCMakeArgs Include="-DCMAKE_BUILD_TYPE=$(Configuration)"/>
       <_MonoCMakeArgs Condition="'$(MonoEnableLLVM)' == 'true'" Include="-DLLVM_PREFIX=$(MonoLLVMDir)" />
     </ItemGroup>
@@ -415,9 +416,8 @@
       <_MonoRuntimeFilePath Condition="'$(TargetsOSX)' == 'true'">$(MonoObjDir)out\lib\libmonosgen-2.0.dylib</_MonoRuntimeFilePath>
       <_MonoRuntimeFilePath Condition="'$(TargetsiOS)' == 'true'">$(MonoObjDir)out\lib\libmonosgen-2.0.dylib</_MonoRuntimeFilePath>
       <_MonoRuntimeFilePath Condition="'$(TargetstvOS)' == 'true'">$(MonoObjDir)out\lib\libmonosgen-2.0.dylib</_MonoRuntimeFilePath>
-      <_MonoRuntimeFilePath Condition="'$(TargetsAndroid)' == 'true'">$(MonoObjDir)out\lib\libmonosgen-2.0.so</_MonoRuntimeFilePath>
       <_MonoRuntimeFilePath Condition="'$(TargetsBrowser)' == 'true'">$(MonoObjDir)out\lib\libmonosgen-2.0.a</_MonoRuntimeFilePath>
-      <_MonoRuntimeFilePath Condition="'$(_MonoRuntimeFilePath)' == ''">$(MonoObjDir)mono\mini\.libs\libmonosgen-2.0.so</_MonoRuntimeFilePath>
+      <_MonoRuntimeFilePath Condition="'$(_MonoRuntimeFilePath)' == ''">$(MonoObjDir)out\lib\libmonosgen-2.0.so</_MonoRuntimeFilePath>
       <_MonoRuntimeStaticFilePath Condition="'$(TargetsiOS)' == 'true' or '$(TargetstvOS)' == 'true' or '$(TargetsAndroid)' == 'true'">$(MonoObjDir)out\lib\libmonosgen-2.0.a</_MonoRuntimeStaticFilePath>
       <_MonoIncludeInterpStaticFiles Condition="'$(TargetsBrowser)' == 'true' or ('$(TargetsiOS)' == 'true' and '$(TargetsiOSSimulator)' != 'true')">true</_MonoIncludeInterpStaticFiles>
     </PropertyGroup>

src/mono/mono/mini/CMakeLists.txt

@@ -304,7 +304,6 @@ endif()
 if(NOT DISABLE_SHARED_LIBS)
   add_library(monosgen SHARED $<TARGET_OBJECTS:monosgen-objects>)
   set_target_properties(monosgen PROPERTIES OUTPUT_NAME monosgen-2.0)
-  set_target_properties(monosgen PROPERTIES LIBRARY_OUTPUT_DIRECTORY .libs)
   target_link_libraries(monosgen ${OS_LIBS} ${ICONV_LIB} ${LLVM_LIBS} ${ICU_LIBS})
   if(ICU_LDFLAGS)
     set_property(TARGET monosgen APPEND_STRING PROPERTY LINK_FLAGS ${ICU_LDFLAGS})