Fix supruious sccache errors

scripts/env.ps1

@@ -20,8 +20,12 @@ if ($env:VSINSTALLDIR -eq $null) {
   }
   $vsDir = (& $vswhere -prerelease -latest -property installationPath)
   if ($vsDir -eq $null) {
-      throw "Visual Studio directory not found."
-  } 
+      $vsDir = Get-ChildItem -Path "C:\Program Files\Microsoft Visual Studio\2022" -Directory
+      if ($vsDir -eq $null) {
+          throw "Visual Studio directory not found."
+      }
+      $vsDir = $vsDir.FullName;
+  }
   Push-Location $vsDir
   try {
     $launchps = (Join-Path -Path $vsDir -ChildPath "Common7\Tools\Launch-VsDevShell.ps1")
@@ -45,10 +49,10 @@ $CPUS = if ($env:CPUS) { $env:CPUS } else { (Get-CimInstance -Class Win32_Proces
 $CC = "clang-cl"
 $CXX = "clang-cl"
 
-$CFLAGS = '/O2'
-# $CFLAGS = '/O2 /MT'
-$CXXFLAGS = '/O2'
-# $CXXFLAGS = '/O2 /MT'
+$CFLAGS = '/O2 /Zi'
+# $CFLAGS = '/O2 /Zi /MT'
+$CXXFLAGS = '/O2 /Zi'
+# $CXXFLAGS = '/O2 /Zi /MT'
 
 $CPU_NAME = if ($Baseline) { "nehalem" } else { "haswell" };
 
@@ -73,6 +77,18 @@ if ($Baseline) {
   $CMAKE_FLAGS += "-DUSE_BASELINE_BUILD=ON"
 }
 
+if (Get-Command sccache -ErrorAction SilentlyContinue) {
+  Write-Host "Using sccache"
+
+  # Continue with local compiler if sccache has an error
+  $env:SCCACHE_IGNORE_SERVER_IO_ERROR = "1"
+
+  $CMAKE_FLAGS += "-DCMAKE_C_COMPILER_LAUNCHER=sccache"
+  $CMAKE_FLAGS += "-DCMAKE_CXX_COMPILER_LAUNCHER=sccache"
+  $CMAKE_FLAGS += "-DCMAKE_MSVC_DEBUG_INFORMATION_FORMAT=Embedded"
+  $CMAKE_FLAGS += "-DCMAKE_POLICY_CMP0141=NEW"
+}
+
 $null = New-Item -ItemType Directory -Force -Path $BUN_DEPS_OUT_DIR
 
 function Run() {
@@ -96,4 +112,4 @@ function Run() {
   if ($result -ne 0) {
     throw "$command $commandArgs exited with code $result."
   }
-}
+}