diff --git a/src/libraries/System.AppContext/ref/System.AppContext.csproj b/src/libraries/System.AppContext/ref/System.AppContext.csproj
index 646240e1160787..55b863d4d48edb 100644
--- a/src/libraries/System.AppContext/ref/System.AppContext.csproj
+++ b/src/libraries/System.AppContext/ref/System.AppContext.csproj
@@ -1,6 +1,7 @@
$(NetCoreAppCurrent)
+ enable
@@ -8,4 +9,4 @@
-
\ No newline at end of file
+
diff --git a/src/libraries/System.AppContext/src/System.AppContext.csproj b/src/libraries/System.AppContext/src/System.AppContext.csproj
index 7e60ac9fbd29ef..b87ab147574aa8 100644
--- a/src/libraries/System.AppContext/src/System.AppContext.csproj
+++ b/src/libraries/System.AppContext/src/System.AppContext.csproj
@@ -3,6 +3,7 @@
System.AppContext
true
$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix
+ enable
diff --git a/src/libraries/System.Buffers/src/System.Buffers.csproj b/src/libraries/System.Buffers/src/System.Buffers.csproj
index f0b04ec10c345e..9fe3105374dd57 100644
--- a/src/libraries/System.Buffers/src/System.Buffers.csproj
+++ b/src/libraries/System.Buffers/src/System.Buffers.csproj
@@ -4,6 +4,7 @@
true
true
$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix
+ enable
diff --git a/src/libraries/System.Diagnostics.Contracts/src/System.Diagnostics.Contracts.csproj b/src/libraries/System.Diagnostics.Contracts/src/System.Diagnostics.Contracts.csproj
index 437287b69d3fb6..a56f992c776804 100644
--- a/src/libraries/System.Diagnostics.Contracts/src/System.Diagnostics.Contracts.csproj
+++ b/src/libraries/System.Diagnostics.Contracts/src/System.Diagnostics.Contracts.csproj
@@ -3,6 +3,7 @@
System.Diagnostics.Contracts
true
$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix
+ enable
diff --git a/src/libraries/System.Diagnostics.Debug/src/System.Diagnostics.Debug.csproj b/src/libraries/System.Diagnostics.Debug/src/System.Diagnostics.Debug.csproj
index 12083fd1032c2d..8a802f65d07291 100644
--- a/src/libraries/System.Diagnostics.Debug/src/System.Diagnostics.Debug.csproj
+++ b/src/libraries/System.Diagnostics.Debug/src/System.Diagnostics.Debug.csproj
@@ -3,6 +3,7 @@
System.Diagnostics.Debug
true
$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix
+ enable
diff --git a/src/libraries/System.Diagnostics.Tools/ref/System.Diagnostics.Tools.csproj b/src/libraries/System.Diagnostics.Tools/ref/System.Diagnostics.Tools.csproj
index d735cead86de20..d1f6b1fa858688 100644
--- a/src/libraries/System.Diagnostics.Tools/ref/System.Diagnostics.Tools.csproj
+++ b/src/libraries/System.Diagnostics.Tools/ref/System.Diagnostics.Tools.csproj
@@ -1,6 +1,7 @@
$(NetCoreAppCurrent)
+ enable
@@ -8,4 +9,4 @@
-
\ No newline at end of file
+
diff --git a/src/libraries/System.Diagnostics.Tools/src/System.Diagnostics.Tools.csproj b/src/libraries/System.Diagnostics.Tools/src/System.Diagnostics.Tools.csproj
index d659ccd998ad73..5c89923dc3698b 100644
--- a/src/libraries/System.Diagnostics.Tools/src/System.Diagnostics.Tools.csproj
+++ b/src/libraries/System.Diagnostics.Tools/src/System.Diagnostics.Tools.csproj
@@ -3,8 +3,9 @@
System.Diagnostics.Tools
true
$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix
+ enable
-
\ No newline at end of file
+
diff --git a/src/libraries/System.Diagnostics.Tracing/src/System.Diagnostics.Tracing.csproj b/src/libraries/System.Diagnostics.Tracing/src/System.Diagnostics.Tracing.csproj
index 4214a62f8ecaed..9bf64e4be71c2e 100644
--- a/src/libraries/System.Diagnostics.Tracing/src/System.Diagnostics.Tracing.csproj
+++ b/src/libraries/System.Diagnostics.Tracing/src/System.Diagnostics.Tracing.csproj
@@ -3,6 +3,7 @@
System.Diagnostics.Tracing
true
$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix
+ enable
diff --git a/src/libraries/System.Drawing.Primitives/src/System.Drawing.Primitives.csproj b/src/libraries/System.Drawing.Primitives/src/System.Drawing.Primitives.csproj
index bb25694503ed25..7d281ea5700c7b 100644
--- a/src/libraries/System.Drawing.Primitives/src/System.Drawing.Primitives.csproj
+++ b/src/libraries/System.Drawing.Primitives/src/System.Drawing.Primitives.csproj
@@ -5,7 +5,7 @@
System.Drawing.Primitives
$(DefineConstants);FEATURE_WINDOWS_SYSTEM_COLORS
$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix
- enable
+ enable
diff --git a/src/libraries/System.Globalization.Calendars/ref/System.Globalization.Calendars.csproj b/src/libraries/System.Globalization.Calendars/ref/System.Globalization.Calendars.csproj
index df6d5ceff4db25..ca034e36a686ce 100644
--- a/src/libraries/System.Globalization.Calendars/ref/System.Globalization.Calendars.csproj
+++ b/src/libraries/System.Globalization.Calendars/ref/System.Globalization.Calendars.csproj
@@ -1,6 +1,7 @@
$(NetCoreAppCurrent)
+ enable
diff --git a/src/libraries/System.Globalization.Calendars/src/System.Globalization.Calendars.csproj b/src/libraries/System.Globalization.Calendars/src/System.Globalization.Calendars.csproj
index 5620866d176594..1516ddc496fa6e 100644
--- a/src/libraries/System.Globalization.Calendars/src/System.Globalization.Calendars.csproj
+++ b/src/libraries/System.Globalization.Calendars/src/System.Globalization.Calendars.csproj
@@ -3,8 +3,9 @@
System.Globalization.Calendars
true
$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix
+ enable
-
\ No newline at end of file
+
diff --git a/src/libraries/System.Globalization.Extensions/ref/System.Globalization.Extensions.csproj b/src/libraries/System.Globalization.Extensions/ref/System.Globalization.Extensions.csproj
index 85cb96bea0b080..54c76201458d61 100644
--- a/src/libraries/System.Globalization.Extensions/ref/System.Globalization.Extensions.csproj
+++ b/src/libraries/System.Globalization.Extensions/ref/System.Globalization.Extensions.csproj
@@ -1,6 +1,7 @@
$(NetCoreAppCurrent)
+ enable
@@ -9,4 +10,4 @@
-
\ No newline at end of file
+
diff --git a/src/libraries/System.Globalization.Extensions/src/System.Globalization.Extensions.csproj b/src/libraries/System.Globalization.Extensions/src/System.Globalization.Extensions.csproj
index 2a140980934ff6..5584d8080ae01e 100644
--- a/src/libraries/System.Globalization.Extensions/src/System.Globalization.Extensions.csproj
+++ b/src/libraries/System.Globalization.Extensions/src/System.Globalization.Extensions.csproj
@@ -7,9 +7,10 @@
true
true
$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix
+ enable
-
\ No newline at end of file
+
diff --git a/src/libraries/System.Globalization/ref/System.Globalization.csproj b/src/libraries/System.Globalization/ref/System.Globalization.csproj
index b35210a78492a6..9a0c64de5b036b 100644
--- a/src/libraries/System.Globalization/ref/System.Globalization.csproj
+++ b/src/libraries/System.Globalization/ref/System.Globalization.csproj
@@ -1,6 +1,7 @@
$(NetCoreAppCurrent)
+ enable
@@ -8,4 +9,4 @@
-
\ No newline at end of file
+
diff --git a/src/libraries/System.Globalization/src/System.Globalization.csproj b/src/libraries/System.Globalization/src/System.Globalization.csproj
index e217aaa680c627..a692a53759bb87 100644
--- a/src/libraries/System.Globalization/src/System.Globalization.csproj
+++ b/src/libraries/System.Globalization/src/System.Globalization.csproj
@@ -3,8 +3,9 @@
System.Globalization
true
$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix
+ enable
-
\ No newline at end of file
+
diff --git a/src/libraries/System.IO.FileSystem.Primitives/ref/System.IO.FileSystem.Primitives.csproj b/src/libraries/System.IO.FileSystem.Primitives/ref/System.IO.FileSystem.Primitives.csproj
index 8f30245dd0e53d..31a3c74ddc9488 100644
--- a/src/libraries/System.IO.FileSystem.Primitives/ref/System.IO.FileSystem.Primitives.csproj
+++ b/src/libraries/System.IO.FileSystem.Primitives/ref/System.IO.FileSystem.Primitives.csproj
@@ -1,6 +1,7 @@
$(NetCoreAppCurrent)
+ enable
@@ -9,4 +10,4 @@
-
\ No newline at end of file
+
diff --git a/src/libraries/System.IO.FileSystem.Primitives/src/System.IO.FileSystem.Primitives.csproj b/src/libraries/System.IO.FileSystem.Primitives/src/System.IO.FileSystem.Primitives.csproj
index ca75c1f90d5667..3297291a29533c 100644
--- a/src/libraries/System.IO.FileSystem.Primitives/src/System.IO.FileSystem.Primitives.csproj
+++ b/src/libraries/System.IO.FileSystem.Primitives/src/System.IO.FileSystem.Primitives.csproj
@@ -3,8 +3,9 @@
System.IO.FileSystem.Primitives
true
$(NetCoreAppCurrent)
+ enable
-
\ No newline at end of file
+
diff --git a/src/libraries/System.IO.UnmanagedMemoryStream/ref/System.IO.UnmanagedMemoryStream.csproj b/src/libraries/System.IO.UnmanagedMemoryStream/ref/System.IO.UnmanagedMemoryStream.csproj
index a8f48862d74139..0ee67eedafd726 100644
--- a/src/libraries/System.IO.UnmanagedMemoryStream/ref/System.IO.UnmanagedMemoryStream.csproj
+++ b/src/libraries/System.IO.UnmanagedMemoryStream/ref/System.IO.UnmanagedMemoryStream.csproj
@@ -1,6 +1,7 @@
$(NetCoreAppCurrent)
+ enable
@@ -9,4 +10,4 @@
-
\ No newline at end of file
+
diff --git a/src/libraries/System.IO.UnmanagedMemoryStream/src/System.IO.UnmanagedMemoryStream.csproj b/src/libraries/System.IO.UnmanagedMemoryStream/src/System.IO.UnmanagedMemoryStream.csproj
index 3f14e5bdd0387f..61a5f004cca244 100644
--- a/src/libraries/System.IO.UnmanagedMemoryStream/src/System.IO.UnmanagedMemoryStream.csproj
+++ b/src/libraries/System.IO.UnmanagedMemoryStream/src/System.IO.UnmanagedMemoryStream.csproj
@@ -3,8 +3,9 @@
System.IO.UnmanagedMemoryStream
true
$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix
+ enable
-
\ No newline at end of file
+
diff --git a/src/libraries/System.IO/ref/System.IO.csproj b/src/libraries/System.IO/ref/System.IO.csproj
index ccdf48d69b046c..7439befee6f575 100644
--- a/src/libraries/System.IO/ref/System.IO.csproj
+++ b/src/libraries/System.IO/ref/System.IO.csproj
@@ -1,6 +1,7 @@
$(NetCoreAppCurrent)
+ enable
@@ -9,4 +10,4 @@
-
\ No newline at end of file
+
diff --git a/src/libraries/System.IO/src/System.IO.csproj b/src/libraries/System.IO/src/System.IO.csproj
index 3cc4732adcb97c..d7effb020f5cb3 100644
--- a/src/libraries/System.IO/src/System.IO.csproj
+++ b/src/libraries/System.IO/src/System.IO.csproj
@@ -3,6 +3,7 @@
System.IO
true
$(NetCoreAppCurrent)
+ enable
diff --git a/src/libraries/System.Numerics.Vectors/src/System.Numerics.Vectors.csproj b/src/libraries/System.Numerics.Vectors/src/System.Numerics.Vectors.csproj
index 9a5056e2c916ba..a30e0b70847069 100644
--- a/src/libraries/System.Numerics.Vectors/src/System.Numerics.Vectors.csproj
+++ b/src/libraries/System.Numerics.Vectors/src/System.Numerics.Vectors.csproj
@@ -2,6 +2,7 @@
true
$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix
+ enable
diff --git a/src/libraries/System.Reflection.Emit.ILGeneration/src/System.Reflection.Emit.ILGeneration.csproj b/src/libraries/System.Reflection.Emit.ILGeneration/src/System.Reflection.Emit.ILGeneration.csproj
index d73e1cf9ce2cc3..772effb9dea240 100644
--- a/src/libraries/System.Reflection.Emit.ILGeneration/src/System.Reflection.Emit.ILGeneration.csproj
+++ b/src/libraries/System.Reflection.Emit.ILGeneration/src/System.Reflection.Emit.ILGeneration.csproj
@@ -3,6 +3,7 @@
System.Reflection.Emit.ILGeneration
true
$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix
+ enable
diff --git a/src/libraries/System.Reflection.Emit.Lightweight/src/System.Reflection.Emit.Lightweight.csproj b/src/libraries/System.Reflection.Emit.Lightweight/src/System.Reflection.Emit.Lightweight.csproj
index 8f621f0996ccd4..3750e07c8780e5 100644
--- a/src/libraries/System.Reflection.Emit.Lightweight/src/System.Reflection.Emit.Lightweight.csproj
+++ b/src/libraries/System.Reflection.Emit.Lightweight/src/System.Reflection.Emit.Lightweight.csproj
@@ -2,7 +2,8 @@
System.Reflection.Emit.Lightweight
true
- $(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix
+ $(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix
+ enable
diff --git a/src/libraries/System.Reflection.Emit/src/System.Reflection.Emit.csproj b/src/libraries/System.Reflection.Emit/src/System.Reflection.Emit.csproj
index 0fb2dc48bc3a56..443c7c07f2f145 100644
--- a/src/libraries/System.Reflection.Emit/src/System.Reflection.Emit.csproj
+++ b/src/libraries/System.Reflection.Emit/src/System.Reflection.Emit.csproj
@@ -2,6 +2,7 @@
true
$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix
+ enable
diff --git a/src/libraries/System.Reflection.Extensions/ref/System.Reflection.Extensions.csproj b/src/libraries/System.Reflection.Extensions/ref/System.Reflection.Extensions.csproj
index d57a55ec912091..ac1351c0752b89 100644
--- a/src/libraries/System.Reflection.Extensions/ref/System.Reflection.Extensions.csproj
+++ b/src/libraries/System.Reflection.Extensions/ref/System.Reflection.Extensions.csproj
@@ -1,6 +1,7 @@
$(NetCoreAppCurrent)
+ enable
diff --git a/src/libraries/System.Reflection.Extensions/src/System.Reflection.Extensions.csproj b/src/libraries/System.Reflection.Extensions/src/System.Reflection.Extensions.csproj
index 248970c16d502c..5c08b886e3e91b 100644
--- a/src/libraries/System.Reflection.Extensions/src/System.Reflection.Extensions.csproj
+++ b/src/libraries/System.Reflection.Extensions/src/System.Reflection.Extensions.csproj
@@ -3,8 +3,9 @@
System.Reflection.Extensions
true
$(NetCoreAppCurrent)
+ enable
-
\ No newline at end of file
+
diff --git a/src/libraries/System.Reflection.Primitives/src/System.Reflection.Primitives.csproj b/src/libraries/System.Reflection.Primitives/src/System.Reflection.Primitives.csproj
index a4d042867f187d..34a8a7846aa395 100644
--- a/src/libraries/System.Reflection.Primitives/src/System.Reflection.Primitives.csproj
+++ b/src/libraries/System.Reflection.Primitives/src/System.Reflection.Primitives.csproj
@@ -3,6 +3,7 @@
System.Reflection.Primitives
true
$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix
+ enable
diff --git a/src/libraries/System.Reflection/ref/System.Reflection.csproj b/src/libraries/System.Reflection/ref/System.Reflection.csproj
index 53705dbc8ebdbd..61b26cc370d896 100644
--- a/src/libraries/System.Reflection/ref/System.Reflection.csproj
+++ b/src/libraries/System.Reflection/ref/System.Reflection.csproj
@@ -1,6 +1,7 @@
$(NetCoreAppCurrent)
+ enable
@@ -8,4 +9,4 @@
-
\ No newline at end of file
+
diff --git a/src/libraries/System.Reflection/src/System.Reflection.csproj b/src/libraries/System.Reflection/src/System.Reflection.csproj
index 1b37d02fcf5587..19d4b8b98c6685 100644
--- a/src/libraries/System.Reflection/src/System.Reflection.csproj
+++ b/src/libraries/System.Reflection/src/System.Reflection.csproj
@@ -3,8 +3,9 @@
System.Reflection
true
$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix
+ enable
-
\ No newline at end of file
+
diff --git a/src/libraries/System.Resources.Reader/ref/System.Resources.Reader.csproj b/src/libraries/System.Resources.Reader/ref/System.Resources.Reader.csproj
index 3381671fe84834..a58632790d72ad 100644
--- a/src/libraries/System.Resources.Reader/ref/System.Resources.Reader.csproj
+++ b/src/libraries/System.Resources.Reader/ref/System.Resources.Reader.csproj
@@ -1,6 +1,7 @@
$(NetCoreAppCurrent)
+ enable
diff --git a/src/libraries/System.Resources.Reader/src/System.Resources.Reader.csproj b/src/libraries/System.Resources.Reader/src/System.Resources.Reader.csproj
index 059386500b8276..041d99ec9bd1a5 100644
--- a/src/libraries/System.Resources.Reader/src/System.Resources.Reader.csproj
+++ b/src/libraries/System.Resources.Reader/src/System.Resources.Reader.csproj
@@ -4,6 +4,7 @@
System.Resources
true
$(NetCoreAppCurrent)
+ enable
diff --git a/src/libraries/System.Resources.ResourceManager/src/System.Resources.ResourceManager.csproj b/src/libraries/System.Resources.ResourceManager/src/System.Resources.ResourceManager.csproj
index 265b1714a901ff..bb161d17fea936 100644
--- a/src/libraries/System.Resources.ResourceManager/src/System.Resources.ResourceManager.csproj
+++ b/src/libraries/System.Resources.ResourceManager/src/System.Resources.ResourceManager.csproj
@@ -3,6 +3,7 @@
System.Resources.ResourceManager
true
$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix
+ enable
diff --git a/src/libraries/System.Runtime.Extensions/ref/System.Runtime.Extensions.csproj b/src/libraries/System.Runtime.Extensions/ref/System.Runtime.Extensions.csproj
index 0d51f6bcc7668a..1b83901c91566c 100644
--- a/src/libraries/System.Runtime.Extensions/ref/System.Runtime.Extensions.csproj
+++ b/src/libraries/System.Runtime.Extensions/ref/System.Runtime.Extensions.csproj
@@ -1,6 +1,7 @@
$(NetCoreAppCurrent)
+ enable
@@ -8,4 +9,4 @@
-
\ No newline at end of file
+
diff --git a/src/libraries/System.Runtime.Extensions/src/System.Runtime.Extensions.csproj b/src/libraries/System.Runtime.Extensions/src/System.Runtime.Extensions.csproj
index 32a400e140df13..0aa03e9af653be 100644
--- a/src/libraries/System.Runtime.Extensions/src/System.Runtime.Extensions.csproj
+++ b/src/libraries/System.Runtime.Extensions/src/System.Runtime.Extensions.csproj
@@ -4,6 +4,7 @@
Library
true
$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix
+ enable
diff --git a/src/libraries/System.Runtime.Handles/ref/System.Runtime.Handles.csproj b/src/libraries/System.Runtime.Handles/ref/System.Runtime.Handles.csproj
index b13a2d298d82b9..87bea6d58fdc25 100644
--- a/src/libraries/System.Runtime.Handles/ref/System.Runtime.Handles.csproj
+++ b/src/libraries/System.Runtime.Handles/ref/System.Runtime.Handles.csproj
@@ -1,6 +1,7 @@
$(NetCoreAppCurrent)
+ enable
@@ -8,4 +9,4 @@
-
\ No newline at end of file
+
diff --git a/src/libraries/System.Runtime.Handles/src/System.Runtime.Handles.csproj b/src/libraries/System.Runtime.Handles/src/System.Runtime.Handles.csproj
index 7a672e96814a76..48cc45350aafeb 100644
--- a/src/libraries/System.Runtime.Handles/src/System.Runtime.Handles.csproj
+++ b/src/libraries/System.Runtime.Handles/src/System.Runtime.Handles.csproj
@@ -3,8 +3,9 @@
System.Runtime.Handles
true
$(NetCoreAppCurrent)
+ enable
-
\ No newline at end of file
+
diff --git a/src/libraries/System.Runtime.Intrinsics.Experimental/ref/System.Runtime.Intrinsics.Experimental.csproj b/src/libraries/System.Runtime.Intrinsics.Experimental/ref/System.Runtime.Intrinsics.Experimental.csproj
index 05fc73bef6a56b..0c898eef06f018 100644
--- a/src/libraries/System.Runtime.Intrinsics.Experimental/ref/System.Runtime.Intrinsics.Experimental.csproj
+++ b/src/libraries/System.Runtime.Intrinsics.Experimental/ref/System.Runtime.Intrinsics.Experimental.csproj
@@ -2,6 +2,7 @@
true
$(NetCoreAppCurrent)
+ enable
@@ -10,4 +11,4 @@
-
\ No newline at end of file
+
diff --git a/src/libraries/System.Runtime.Intrinsics.Experimental/src/System.Runtime.Intrinsics.Experimental.csproj b/src/libraries/System.Runtime.Intrinsics.Experimental/src/System.Runtime.Intrinsics.Experimental.csproj
index 23bd8185f2ff9d..e27126d22124cf 100644
--- a/src/libraries/System.Runtime.Intrinsics.Experimental/src/System.Runtime.Intrinsics.Experimental.csproj
+++ b/src/libraries/System.Runtime.Intrinsics.Experimental/src/System.Runtime.Intrinsics.Experimental.csproj
@@ -3,8 +3,9 @@
System.Runtime.Intrinsics.Experimental
true
$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix
+ enable
-
\ No newline at end of file
+
diff --git a/src/libraries/System.Runtime.Intrinsics/src/System.Runtime.Intrinsics.csproj b/src/libraries/System.Runtime.Intrinsics/src/System.Runtime.Intrinsics.csproj
index 9a5056e2c916ba..a30e0b70847069 100644
--- a/src/libraries/System.Runtime.Intrinsics/src/System.Runtime.Intrinsics.csproj
+++ b/src/libraries/System.Runtime.Intrinsics/src/System.Runtime.Intrinsics.csproj
@@ -2,6 +2,7 @@
true
$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix
+ enable
diff --git a/src/libraries/System.Runtime.Loader/src/System.Runtime.Loader.csproj b/src/libraries/System.Runtime.Loader/src/System.Runtime.Loader.csproj
index ea7b260c246038..8c452d501ada0b 100644
--- a/src/libraries/System.Runtime.Loader/src/System.Runtime.Loader.csproj
+++ b/src/libraries/System.Runtime.Loader/src/System.Runtime.Loader.csproj
@@ -3,6 +3,7 @@
System.Runtime.Loader
true
$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix
+ enable
diff --git a/src/libraries/System.Runtime/src/System.Runtime.csproj b/src/libraries/System.Runtime/src/System.Runtime.csproj
index cd2e1e337406af..4d0b20902d6e6d 100644
--- a/src/libraries/System.Runtime/src/System.Runtime.csproj
+++ b/src/libraries/System.Runtime/src/System.Runtime.csproj
@@ -3,6 +3,7 @@
System.Runtime
true
$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix
+ enable
diff --git a/src/libraries/System.Security.Principal/ref/System.Security.Principal.csproj b/src/libraries/System.Security.Principal/ref/System.Security.Principal.csproj
index 144a72da87e257..06941c80cb7793 100644
--- a/src/libraries/System.Security.Principal/ref/System.Security.Principal.csproj
+++ b/src/libraries/System.Security.Principal/ref/System.Security.Principal.csproj
@@ -1,6 +1,7 @@
$(NetCoreAppCurrent)
+ enable
diff --git a/src/libraries/System.Security.Principal/src/System.Security.Principal.csproj b/src/libraries/System.Security.Principal/src/System.Security.Principal.csproj
index 4ad2a1e873fa15..4b092c7bcb7bbd 100644
--- a/src/libraries/System.Security.Principal/src/System.Security.Principal.csproj
+++ b/src/libraries/System.Security.Principal/src/System.Security.Principal.csproj
@@ -3,6 +3,7 @@
System.Security.Principal
true
$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix
+ enable
diff --git a/src/libraries/System.Security.SecureString/ref/System.Security.SecureString.csproj b/src/libraries/System.Security.SecureString/ref/System.Security.SecureString.csproj
index 42940c51329f28..38d76bbb6123dc 100644
--- a/src/libraries/System.Security.SecureString/ref/System.Security.SecureString.csproj
+++ b/src/libraries/System.Security.SecureString/ref/System.Security.SecureString.csproj
@@ -2,6 +2,7 @@
true
$(NetCoreAppCurrent)
+ enable
@@ -11,4 +12,4 @@
-
\ No newline at end of file
+
diff --git a/src/libraries/System.Security.SecureString/src/System.Security.SecureString.csproj b/src/libraries/System.Security.SecureString/src/System.Security.SecureString.csproj
index d3f6cd0f8712e7..7d220aa8a520ad 100644
--- a/src/libraries/System.Security.SecureString/src/System.Security.SecureString.csproj
+++ b/src/libraries/System.Security.SecureString/src/System.Security.SecureString.csproj
@@ -4,9 +4,10 @@
System.Security.SecureString
true
$(NetCoreAppCurrent)
+ enable
-
\ No newline at end of file
+
diff --git a/src/libraries/System.Text.Encoding.Extensions/src/System.Text.Encoding.Extensions.csproj b/src/libraries/System.Text.Encoding.Extensions/src/System.Text.Encoding.Extensions.csproj
index 537d6ade393f03..4b523d4fd29ca2 100644
--- a/src/libraries/System.Text.Encoding.Extensions/src/System.Text.Encoding.Extensions.csproj
+++ b/src/libraries/System.Text.Encoding.Extensions/src/System.Text.Encoding.Extensions.csproj
@@ -3,6 +3,7 @@
System.Text.Encoding.Extensions
true
$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix
+ enable
diff --git a/src/libraries/System.Text.Encoding/ref/System.Text.Encoding.csproj b/src/libraries/System.Text.Encoding/ref/System.Text.Encoding.csproj
index e768e08fff12b3..7cfd7365e0d1aa 100644
--- a/src/libraries/System.Text.Encoding/ref/System.Text.Encoding.csproj
+++ b/src/libraries/System.Text.Encoding/ref/System.Text.Encoding.csproj
@@ -2,6 +2,7 @@
true
$(NetCoreAppCurrent)
+ enable
@@ -9,4 +10,4 @@
-
\ No newline at end of file
+
diff --git a/src/libraries/System.Text.Encoding/src/System.Text.Encoding.csproj b/src/libraries/System.Text.Encoding/src/System.Text.Encoding.csproj
index af1f5c7fc1674c..6c5202c11a5b60 100644
--- a/src/libraries/System.Text.Encoding/src/System.Text.Encoding.csproj
+++ b/src/libraries/System.Text.Encoding/src/System.Text.Encoding.csproj
@@ -3,8 +3,9 @@
System.Text.Encoding
true
$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix
+ enable
-
\ No newline at end of file
+
diff --git a/src/libraries/System.Threading.Overlapped/src/System.Threading.Overlapped.csproj b/src/libraries/System.Threading.Overlapped/src/System.Threading.Overlapped.csproj
index c92b0a03c056d9..185178662d8989 100644
--- a/src/libraries/System.Threading.Overlapped/src/System.Threading.Overlapped.csproj
+++ b/src/libraries/System.Threading.Overlapped/src/System.Threading.Overlapped.csproj
@@ -4,6 +4,7 @@
true
true
$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix
+ enable
diff --git a/src/libraries/System.Threading.Tasks.Extensions/ref/System.Threading.Tasks.Extensions.csproj b/src/libraries/System.Threading.Tasks.Extensions/ref/System.Threading.Tasks.Extensions.csproj
index 0f4d47c4cf4b9c..76e0ee495e8fd5 100644
--- a/src/libraries/System.Threading.Tasks.Extensions/ref/System.Threading.Tasks.Extensions.csproj
+++ b/src/libraries/System.Threading.Tasks.Extensions/ref/System.Threading.Tasks.Extensions.csproj
@@ -1,6 +1,7 @@
$(NetCoreAppCurrent)
+ enable
diff --git a/src/libraries/System.Threading.Tasks.Extensions/src/System.Threading.Tasks.Extensions.csproj b/src/libraries/System.Threading.Tasks.Extensions/src/System.Threading.Tasks.Extensions.csproj
index 9a5056e2c916ba..443c7c07f2f145 100644
--- a/src/libraries/System.Threading.Tasks.Extensions/src/System.Threading.Tasks.Extensions.csproj
+++ b/src/libraries/System.Threading.Tasks.Extensions/src/System.Threading.Tasks.Extensions.csproj
@@ -2,8 +2,9 @@
true
$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix
+ enable
-
\ No newline at end of file
+
diff --git a/src/libraries/System.Threading.Tasks/ref/System.Threading.Tasks.csproj b/src/libraries/System.Threading.Tasks/ref/System.Threading.Tasks.csproj
index 9f022f7600a328..fd998b62bb8038 100644
--- a/src/libraries/System.Threading.Tasks/ref/System.Threading.Tasks.csproj
+++ b/src/libraries/System.Threading.Tasks/ref/System.Threading.Tasks.csproj
@@ -1,6 +1,7 @@
$(NetCoreAppCurrent)
+ enable
@@ -8,4 +9,4 @@
-
\ No newline at end of file
+
diff --git a/src/libraries/System.Threading.Tasks/src/System.Threading.Tasks.csproj b/src/libraries/System.Threading.Tasks/src/System.Threading.Tasks.csproj
index ff45b1389ee6ac..b8bbdc8975558a 100644
--- a/src/libraries/System.Threading.Tasks/src/System.Threading.Tasks.csproj
+++ b/src/libraries/System.Threading.Tasks/src/System.Threading.Tasks.csproj
@@ -3,8 +3,9 @@
System.Threading.Tasks
true
$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix
+ enable
-
\ No newline at end of file
+
diff --git a/src/libraries/System.Threading.Thread/src/System.Threading.Thread.csproj b/src/libraries/System.Threading.Thread/src/System.Threading.Thread.csproj
index 3653c290559580..52c2c5003180f1 100644
--- a/src/libraries/System.Threading.Thread/src/System.Threading.Thread.csproj
+++ b/src/libraries/System.Threading.Thread/src/System.Threading.Thread.csproj
@@ -4,6 +4,7 @@
Library
true
$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix
+ enable
diff --git a/src/libraries/System.Threading.ThreadPool/src/System.Threading.ThreadPool.csproj b/src/libraries/System.Threading.ThreadPool/src/System.Threading.ThreadPool.csproj
index 1eae5c01952401..27a7e8b643b784 100644
--- a/src/libraries/System.Threading.ThreadPool/src/System.Threading.ThreadPool.csproj
+++ b/src/libraries/System.Threading.ThreadPool/src/System.Threading.ThreadPool.csproj
@@ -3,6 +3,7 @@
System.Threading.ThreadPool
true
$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix
+ enable
diff --git a/src/libraries/System.Threading.Timer/ref/System.Threading.Timer.csproj b/src/libraries/System.Threading.Timer/ref/System.Threading.Timer.csproj
index b1d463a412eaa6..398e3eafe32ac3 100644
--- a/src/libraries/System.Threading.Timer/ref/System.Threading.Timer.csproj
+++ b/src/libraries/System.Threading.Timer/ref/System.Threading.Timer.csproj
@@ -1,6 +1,7 @@
$(NetCoreAppCurrent)
+ enable
@@ -8,4 +9,4 @@
-
\ No newline at end of file
+
diff --git a/src/libraries/System.Threading.Timer/src/System.Threading.Timer.csproj b/src/libraries/System.Threading.Timer/src/System.Threading.Timer.csproj
index f7e20874418500..1714e65856f04b 100644
--- a/src/libraries/System.Threading.Timer/src/System.Threading.Timer.csproj
+++ b/src/libraries/System.Threading.Timer/src/System.Threading.Timer.csproj
@@ -3,8 +3,9 @@
System.Threading.Timer
true
$(NetCoreAppCurrent)-Windows_NT;$(NetCoreAppCurrent)-Unix
+ enable
-
\ No newline at end of file
+
diff --git a/src/libraries/System.ValueTuple/ref/System.ValueTuple.csproj b/src/libraries/System.ValueTuple/ref/System.ValueTuple.csproj
index 103035e30a6e06..7de77702d2778f 100644
--- a/src/libraries/System.ValueTuple/ref/System.ValueTuple.csproj
+++ b/src/libraries/System.ValueTuple/ref/System.ValueTuple.csproj
@@ -4,6 +4,7 @@
Can be removed when API is added and this assembly is versioned to 4.1.* -->
4.0.3.0
$(NetCoreAppCurrent);_$(NetFrameworkCurrent)
+ enable
@@ -11,4 +12,4 @@
-
\ No newline at end of file
+
diff --git a/src/libraries/System.ValueTuple/src/System.ValueTuple.csproj b/src/libraries/System.ValueTuple/src/System.ValueTuple.csproj
index 8df6d68de64b1a..37b43aecf36ce6 100644
--- a/src/libraries/System.ValueTuple/src/System.ValueTuple.csproj
+++ b/src/libraries/System.ValueTuple/src/System.ValueTuple.csproj
@@ -3,6 +3,7 @@
true
$(NetCoreAppCurrent);_$(NetFrameworkCurrent)
+ enable