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[NativeAOT] Set _UseNativeLibPrefix=true to fix UnsatisfiedLinkError on Android #10825

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[NativeAOT] Set _UseNativeLibPrefix=true to fix UnsatisfiedLinkError on Android #10825

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7f81a6c
Initial plan
Copilot Feb 17, 2026
3bd0460
Fix NativeAOT Android app crash with UnsatisfiedLinkError
Copilot Feb 17, 2026
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9 changes: 7 additions & 2 deletions ...Android.Build.Tasks/Microsoft.Android.Sdk/targets/Microsoft.Android.Sdk.NativeAOT.targets
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,9 @@ This file contains the NativeAOT-specific MSBuild logic for .NET for Android.
<!-- ResolvedFileToPublish is not populated until _AndroidComputeIlcCompileInputs, so
proguard generation must run after that target instead of after ILLink. -->
<_GenerateProguardAfterTargets>_AndroidComputeIlcCompileInputs</_GenerateProguardAfterTargets>
<!-- Android requires native libraries to have the "lib" prefix (e.g. libMyApp.so).
Tell the NativeAOT SDK to produce the binary with this prefix from the start. -->
<_UseNativeLibPrefix Condition=" '$(_UseNativeLibPrefix)' == '' ">true</_UseNativeLibPrefix>
</PropertyGroup>

<!-- Default property values for NativeAOT Debug configuration -->
Expand Down Expand Up @@ -100,7 +103,7 @@ This file contains the NativeAOT-specific MSBuild logic for .NET for Android.
</PropertyGroup>
<ItemGroup>
<!-- Android needs a proper soname property or it will refuse to load the library -->
<LinkerArg Include="&quot;-Wl,-soname,lib$(TargetName)$(NativeBinaryExt)&quot;" />
<LinkerArg Include="&quot;-Wl,-soname,$(NativeBinaryPrefix)$(TargetName)$(NativeBinaryExt)&quot;" />
<LinkerArg Include="-Wl,--error-unresolved-symbols" />
<LinkerArg Include="-Wl,--no-undefined" />

Expand Down Expand Up @@ -211,8 +214,10 @@ This file contains the NativeAOT-specific MSBuild logic for .NET for Android.

<Target Name="_AndroidFixNativeLibraryFileName" AfterTargets="ComputeFilesToPublish">
<ItemGroup>
<!-- Fix paths to contain lib-prefix -->
<!-- When the runtime produces the binary without the "lib" prefix, add it -->
<ResolvedFileToPublish Update="@(ResolvedFileToPublish)" ArchiveFileName="lib%(FileName)%(Extension)" Condition=" '%(Filename)%(Extension)' == '$(TargetName)$(NativeBinaryExt)' " />
<!-- When the runtime already adds the "lib" prefix via $(NativeBinaryPrefix), set ArchiveFileName explicitly -->
<ResolvedFileToPublish Update="@(ResolvedFileToPublish)" ArchiveFileName="%(FileName)%(Extension)" Condition=" '$(NativeBinaryPrefix)' != '' and '%(Filename)%(Extension)' == '$(NativeBinaryPrefix)$(TargetName)$(NativeBinaryExt)' " />
</ItemGroup>
</Target>

Expand Down