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-rw-r--r--gnu/packages/patches/vtk-7-gcc-11-compat.patch11
1 files changed, 11 insertions, 0 deletions
diff --git a/gnu/packages/patches/vtk-7-gcc-11-compat.patch b/gnu/packages/patches/vtk-7-gcc-11-compat.patch
new file mode 100644
index 0000000000..c7ab3af36e
--- /dev/null
+++ b/gnu/packages/patches/vtk-7-gcc-11-compat.patch
@@ -0,0 +1,11 @@
+Description: GCC 11 now enforces that comparison objects be invocable as const.
+--- a/Rendering/Label/vtkLabelHierarchy.cxx
++++ b/Rendering/Label/vtkLabelHierarchy.cxx
+@@ -525,1 +525,1 @@
+- const vtkHierarchyNode & b)
++ const vtkHierarchyNode & b) const
+--- a/Rendering/Label/vtkLabelHierarchyPrivate.h
++++ b/Rendering/Label/vtkLabelHierarchyPrivate.h
+@@ -66,1 +66,1 @@
+- bool operator () ( const vtkIdType& a, const vtkIdType& b )
++ bool operator () ( const vtkIdType& a, const vtkIdType& b ) const