Disable the unlisted dcmtk library. The build fails if it happens to be
installed.
Index: Makefile
===================================================================
RCS file: /home/cvs/ports/graphics/openscenegraph/Makefile,v
retrieving revision 1.31
diff -u -p -u -p -r1.31 Makefile
--- Makefile 16 Feb 2023 11:01:52 -0000 1.31
+++ Makefile 8 May 2023 00:41:13 -0000
@@ -65,7 +65,8 @@ LIB_DEPENDS = devel/sdl \
NO_TEST = Yes
-CONFIGURE_ARGS += -DCMAKE_DISABLE_FIND_PACKAGE_OpenCascade:Bool=Yes
+CONFIGURE_ARGS += -DCMAKE_DISABLE_FIND_PACKAGE_OpenCascade:Bool=Yes \
+ -DCMAKE_DISABLE_FIND_PACKAGE_DCMTK:Bool=Yes
# Fix build with OpenEXR>=3 (Imath split)
CXXFLAGS += -I${LOCALBASE}/include/Imath