Allow cross compiling windows (#19119)

* Allow cross compiling windows

* fix exp feature generation

* make sure all platforms have OSArchitecture

build.psm1

@@ -159,6 +159,7 @@ function Get-EnvironmentInformation
     }
 
     if ($environment.IsLinux) {
+        $environment += @{ 'OSArchitecture' = [System.Runtime.InteropServices.RuntimeInformation]::ProcessArchitecture }
         $LinuxInfo = Get-Content /etc/os-release -Raw | ConvertFrom-StringData
         $lsb_release = Get-Command lsb_release -Type Application -ErrorAction Ignore | Select-Object -First 1
         if ($lsb_release) {
@@ -455,6 +456,9 @@ Fix steps:
 
     if ($Options.Runtime -like 'win*' -or ($Options.Runtime -like 'fxdependent*' -and $environment.IsWindows)) {
         $Arguments += "/property:IsWindows=true"
+        if(!$environment.IsWindows) {
+            $Arguments += "/property:EnableWindowsTargeting=true"
+        }
     }
     else {
         $Arguments += "/property:IsWindows=false"
@@ -648,7 +652,7 @@ Fix steps:
         (Test-IsPreview $psVersion) -and
         -not (Test-IsReleaseCandidate $psVersion)
     ) {
-        if (-not $env:PS_RELEASE_BUILD -and -not $Runtime.Contains("arm") -and -not ($Runtime -like 'fxdependent*')) {
+        if ((Test-ShouldGenerateExperimentalFeatures -Runtime $Options.Runtime)) {
             Write-Verbose "Build experimental feature list by running 'Get-ExperimentalFeature'" -Verbose
             $json = & $publishPath\pwsh -noprofile -command {
                 $expFeatures = Get-ExperimentalFeature | ForEach-Object -MemberName Name
@@ -697,6 +701,45 @@ Fix steps:
     }
 }
 
+function Test-ShouldGenerateExperimentalFeatures
+{
+    param(
+        [Parameter(Mandatory)]
+        $Runtime
+    )
+
+    if ($env:PS_RELEASE_BUILD) {
+        return $false
+    }
+
+    if ($Runtime -like 'fxdependent*') {
+        return $false
+    }
+
+    $runtimePattern = 'unknown-'
+    if ($environment.IsWindows) {
+        $runtimePattern = '^win.*-'
+    }
+
+    if ($environment.IsMacOS) {
+        $runtimePattern = '^osx.*-'
+    }
+
+    if ($environment.IsLinux) {
+        $runtimePattern = '^linux.*-'
+    }
+
+    $runtimePattern += $environment.OSArchitecture.ToString()
+    Write-Verbose "runtime pattern check: $Runtime -match $runtimePattern" -Verbose
+    if ($Runtime -match $runtimePattern) {
+        Write-Verbose "Generating experimental feature list" -Verbose
+        return $true
+    }
+
+    Write-Verbose "Skipping generating experimental feature list" -Verbose
+    return $false
+}
+
 function Restore-PSPackage
 {
     [CmdletBinding()]