ENH: Warn if build dir is too long for filesystem

When an object file directory is too deep to place an object file
without exceeding CMAKE_OBJECT_PATH_MAX, this issues a warning.
Previously we silently ignored the problem.  See issue #7860.

1 files changed, 1 insertions, 0 deletions

diff --git a/Source/cmLocalGenerator.h b/Source/cmLocalGenerator.h
index 0f4c1e9..5f962ad 100644
--- a/Source/cmLocalGenerator.h
+++ b/Source/cmLocalGenerator.h
@@ -370,6 +370,7 @@ protected:
   std::map<cmStdString, cmStdString> LanguageToIncludeFlags;
   std::map<cmStdString, cmStdString> UniqueObjectNamesMap;
   std::string::size_type ObjectPathMax;
+  std::set<cmStdString> ObjectMaxPathViolations;
   bool WindowsShell;
   bool WindowsVSIDE;
   bool WatcomWMake;