Build CoreFX on Linux

[ellismg]

Everything except for Microsoft.VisualBasic can be built from source on *nix via build.sh. The VisualBasic issues are due to a bug in MSBuild.

[ellismg]

dotnet/buildtools#952 provides a workaround to buildtools upstream to address the issue. Once this is merged, we'll need to back port it to the release/1.0.0 branch of build tools, spin a new build tools and start to use that for our projects.

With the above changes and this patch:

diff --git a/src/Microsoft.VisualBasic/pkg/Microsoft.VisualBasic.builds b/src/Microsoft.VisualBasic/pkg/Microsoft.VisualBasic.builds
index 6076718..fb94e73 100644
--- a/src/Microsoft.VisualBasic/pkg/Microsoft.VisualBasic.builds
+++ b/src/Microsoft.VisualBasic/pkg/Microsoft.VisualBasic.builds
@@ -2,8 +2,7 @@
 <Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), dir.props))\dir.props" />
   <ItemGroup>
-    <!-- Temporary workaround, VisualBasic projects cannot be built on non-Windows platforms. See issue #5230. -->
-    <Project Include="Microsoft.VisualBasic.pkgproj" Condition="'$(OS)'=='Windows_NT'"/>
+    <Project Include="Microsoft.VisualBasic.pkgproj" />
   </ItemGroup>
   <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), dir.traversal.targets))\dir.traversal.targets" />
 </Project>
diff --git a/src/Microsoft.VisualBasic/src/Microsoft.VisualBasic.builds b/src/Microsoft.VisualBasic/src/Microsoft.VisualBasic.builds
index 5f033d1..54f6ffa 100644
--- a/src/Microsoft.VisualBasic/src/Microsoft.VisualBasic.builds
+++ b/src/Microsoft.VisualBasic/src/Microsoft.VisualBasic.builds
@@ -2,8 +2,7 @@
 <Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), dir.props))\dir.props" />
   <ItemGroup>
-    <!-- Temporary workaround, VisualBasic projects cannot be built on non-Windows platforms. See issue #5230. -->
-    <Project Include="Microsoft.VisualBasic.vbproj" Condition="'$(OS)'=='Windows_NT'" />
+    <Project Include="Microsoft.VisualBasic.vbproj" />
   </ItemGroup>
   <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), dir.traversal.targets))\dir.traversal.targets" />
 </Project>
diff --git a/src/Microsoft.VisualBasic/tests/Microsoft.VisualBasic.Tests.builds b/src/Microsoft.VisualBasic/tests/Microsoft.VisualBasic.Tests.builds
index 0cfb81c..014147a 100644
--- a/src/Microsoft.VisualBasic/tests/Microsoft.VisualBasic.Tests.builds
+++ b/src/Microsoft.VisualBasic/tests/Microsoft.VisualBasic.Tests.builds
@@ -2,10 +2,7 @@
 <Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), dir.props))\dir.props" />
   <ItemGroup>
-    <!-- Temporary workaround, VisualBasic projects cannot be built on non-Windows platforms. See issue #5230. -->
-    <Project Include="Microsoft.VisualBasic.Tests.csproj" Condition="'$(OS)'=='Windows_NT'">
-      <OSGroup>Windows_NT</OSGroup>
-    </Project>
+    <Project Include="Microsoft.VisualBasic.Tests.csproj" />
   </ItemGroup>
   <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), dir.traversal.targets))\dir.traversal.targets" />
 </Project>

We can build all of CoreFX.

[ellismg]

There were some problems consuming the managed code packages we built in upstream repos, so I'm unmarking this as fixed-locally for now.

One other problem was the packages we produced had source information embedded in them which should only be present in the symbol packages.