Ninja: Clean metadata after regen during build on Windows with 1.10.2+

Ninja 1.10.2 fixes support for `generator = 1` rules that run metadata
update commands during regeneration while a build is running.  Update
the condition added by commit ccaa0bccc4 (Ninja: Do not clean metadata
when re-generating inside a running build, 2020-01-27,
v3.17.0-rc1~73^2) to remove our workaround when Ninja is new enough.

Fixes: #20274

1 files changed, 5 insertions, 0 deletions

diff --git a/Source/cmGlobalNinjaGenerator.h b/Source/cmGlobalNinjaGenerator.h
index a0724ac..3d92ec9 100644
--- a/Source/cmGlobalNinjaGenerator.h
+++ b/Source/cmGlobalNinjaGenerator.h
@@ -373,6 +373,10 @@ public:
   {
     return "1.10";
   }
+  static std::string RequiredNinjaVersionForMetadataOnRegeneration()
+  {
+    return "1.10.2";
+  }
   bool SupportsConsolePool() const;
   bool SupportsImplicitOuts() const;
   bool SupportsManifestRestat() const;
@@ -538,6 +542,7 @@ private:
   bool NinjaSupportsUnconditionalRecompactTool = false;
   bool NinjaSupportsCleanDeadTool = false;
   bool NinjaSupportsMultipleOutputs = false;
+  bool NinjaSupportsMetadataOnRegeneration = false;
 
 private:
   void InitOutputPathPrefix();