Don't expect footprint viewer frame to have a DRC engine.

5 years ago · 43ab963650
1 changed files with 5 additions and 2 deletions
--- a/pcbnew/board_design_settings.cpp
+++ b/pcbnew/board_design_settings.cpp
@ -934,8 +934,11 @@ int BOARD_DESIGN_SETTINGS::GetBiggestClearanceValue()
 {
    DRC_CONSTRAINT constraint;

-    m_DRCEngine->QueryWorstConstraint( DRC_CONSTRAINT_TYPE_CLEARANCE, constraint,
-                                       DRCCQ_LARGEST_MINIMUM );
+    if( m_DRCEngine )
+    {
+        m_DRCEngine->QueryWorstConstraint( DRC_CONSTRAINT_TYPE_CLEARANCE, constraint,
+                                           DRCCQ_LARGEST_MINIMUM );
+    }

    return constraint.Value().HasMin() ? constraint.Value().Min() : 0;
 }