(CC jtt@ as maintainer)
graphics/vtk should not expect parallel HDF5.
Fix for the upcoming hdf5-2.2.0 update:
Index: Makefile
===================================================================
RCS file: /cvs/ports/graphics/vtk/Makefile,v
diff -u -p -r1.16 Makefile
--- Makefile 26 Aug 2026 16:20:51 -0000 1.16
+++ Makefile 12 Sep 2026 19:55:00 -0000
@@ -7,6 +7,7 @@ COMMENT = visualization toolkit
V = 9.7.0
DISTNAME = VTK-${V}
PKGNAME = ${DISTNAME:L}
+REVISION = 0
.for LIB in vtkChartsCore vtkCommonCache vtkCommonColor \
vtkCommonComputationalGeometry vtkCommonCore vtkCommonDataModel \
@@ -97,6 +98,7 @@ LIB_DEPENDS = archivers/lz4 \
# ioss: part of seacas suite and difficult to package
# token: a vtk utility
CONFIGURE_ARGS += -DBUILD_SHARED_LIBS=ON \
+ -DHDF5_IS_PARALLEL=OFF \
-DVTK_FORBID_DOWNLOADS=ON \
-DVTK_VERSIONED_INSTALL=OFF \
-DVTK_BUILD_DOCUMENTATION=OFF \
