From 1d18ad3bcbae9ff5e6eff434ee2729e9ff738709 Mon Sep 17 00:00:00 2001
PatchSource: https://github.com/dotnet/installer/pull/13410
From: Antoine Martin <dev@ayakael.net>
Date: Sun, 13 Mar 2022 23:28:21 +0000
Subject: [PATCH 1/1] musl-build-fix

Musl support for dotnet build

---
 Directory.Build.props   | 4 ++++
 Directory.Build.targets | 7 +++++++
 repos/aspnetcore.proj   | 2 ++
 repos/installer.proj    | 3 ++-
 src/redist/targets/GetRuntimeInformation.targets        | 9 +++++++++
 5 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/Directory.Build.props b/Directory.Build.props
index fdc0999af..2c659c200 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -171,6 +171,9 @@
   </PropertyGroup>
 
   <PropertyGroup>
+    <OSPlatformIsMusl Condition="$(OSPlatformIsMuslCheck) == '0'">true</OSPlatformIsMusl>
+    <OSPlatformIsMusl Condition="$(OSPlatformIsMusl) == ''">true</OSPlatformIsMusl>
+
     <TargetRid Condition="'$(TargetRid)' == ''">$([System.Runtime.InteropServices.RuntimeInformation]::RuntimeIdentifier)</TargetRid>
 
     <TargetOS Condition="'$(TargetOS)' == '' AND $([MSBuild]::IsOSPlatform('WINDOWS'))">Windows_NT</TargetOS>
@@ -183,6 +186,7 @@
     <TargetRid Condition="'$(TargetOS)' == 'FreeBSD'">freebsd-$(Platform)</TargetRid>
     <TargetRid Condition="'$(TargetOS)' == 'OSX'">osx-$(Platform)</TargetRid>
     <TargetRid Condition="'$(TargetOS)' == 'Linux'">linux-$(Platform)</TargetRid>
+    <TargetRid Condition="'$(TargetOS)' == 'Linux' AND '$(OSPlatformIsMusl)' == 'true'">linux-musl-$(Platform)</TargetRid>
     <TargetRid Condition="'$(TargetOS)' == 'Windows_NT'">win-$(Platform)</TargetRid>
   </PropertyGroup>
 
diff --git a/Directory.Build.targets b/Directory.Build.targets
index 02ff624bc..c7e3bd141 100644
--- a/Directory.Build.targets
+++ b/Directory.Build.targets
@@ -10,6 +10,13 @@
     </ItemGroup>
   </Target>
 
+  <Target Name="GetOSPlatformIsMuslCheck"
+  	BeforeTargets="CollectPackageReferences">
+    <Exec IgnoreExitCode="true" Command="ldd --version 2&gt;&amp;1 | grep -q musl">
+      <Output TaskParameter="ExitCode" PropertyName="OSPlatformIsMuslCheck" />
+    </Exec>
+  </Target>
+
   <Import Condition="'$(SkipArcadeSdkImport)' != 'true'" Project="Sdk.targets" Sdk="Microsoft.DotNet.Arcade.Sdk" />
 
 </Project>
diff --git a/repos/aspnetcore.proj b/repos/aspnetcore.proj
index 480f3c713..04694770d 100644
--- a/repos/aspnetcore.proj
+++ b/repos/aspnetcore.proj
@@ -15,6 +15,8 @@
     <!-- https://github.com/dotnet/sdk/pull/20136 has not flowed into our bootstrap SDK yet, which causes file-in-use issues in ASP.NET
          due to an interaction with the RemoveSharedFrameworkDependencies task.  disable package validation until this is fixed.  -->
     <BuildCommandArgs>$(BuildCommandArgs) /p:EnablePackageValidation=false</BuildCommandArgs>
+    <!-- below is temporary fix till https://github.com/dotnet/aspnetcore/issues/39822 is addressed -->
+    <BuildCommandArgs Condition="'$(OSPlatformIsMusl)' == 'true'">$(BuildCommandArgs) --os-name linux-musl</BuildCommandArgs>
     <BuildCommand>$(ProjectDirectory)\eng\build$(ShellExtension) $(BuildCommandArgs)</BuildCommand>
 
     <LogVerbosityOptOut>true</LogVerbosityOptOut>
diff --git a/repos/installer.proj b/repos/installer.proj
index 712d7cd14..587384128 100644
--- a/repos/installer.proj
+++ b/repos/installer.proj
@@ -25,7 +25,8 @@
     <BuildCommandArgs Condition="'$(TargetOS)' == 'Linux'">$(BuildCommandArgs) /p:Rid=$(TargetRid)</BuildCommandArgs>
     <BuildCommandArgs>$(BuildCommandArgs) /p:DOTNET_INSTALL_DIR=$(DotNetCliToolDir)</BuildCommandArgs>
 
-    <BuildCommandArgs Condition="'$(TargetOS)' == 'Linux'">$(BuildCommandArgs) /p:AspNetCoreSharedFxInstallerRid=linux-$(Platform)</BuildCommandArgs>
+    <BuildCommandArgs Condition="'$(TargetOS)' == 'Linux' AND '$(OSPlatformIsMusl)' == 'false'">$(BuildCommandArgs) /p:AspNetCoreSharedFxInstallerRid=linux-$(Platform)</BuildCommandArgs>
+    <BuildCommandArgs Condition="'$(TargetOS)' == 'Linux' AND '$(OSPlatformIsMusl)' == 'true'">$(BuildCommandArgs) /p:AspNetCoreSharedFxInstallerRid=linux-musl-$(Platform)</BuildCommandArgs>
     <!-- core-sdk always wants to build portable on OSX and FreeBSD -->
     <BuildCommandArgs Condition="'$(TargetOS)' == 'FreeBSD'">$(BuildCommandArgs) /p:CoreSetupRid=freebsd-x64 /p:PortableBuild=true</BuildCommandArgs>
     <BuildCommandArgs Condition="'$(TargetOS)' == 'OSX'">$(BuildCommandArgs) /p:CoreSetupRid=osx-x64</BuildCommandArgs>
 
-- 
2.34.1