--- examples/plplot_configure.cmake_installed_examples.in.orig	2019-06-01 23:24:33 UTC
+++ examples/plplot_configure.cmake_installed_examples.in
@@ -1,6 +1,7 @@
 # -*- mode: cmake -*-
 # This file used to configure CMake variables that are used to build the
 # installed examples.
+# Patch borrowed from https://sourceforge.net/p/plplot/plplot/ci/52479b8830ee02900b41fe3ec947aed6b1841a48/
 # Identify that this is the build system for the installed examples.
 set(BUILD_TEST ON)
 set(CORE_BUILD OFF)
@@ -172,6 +173,8 @@ if(ENABLE_qt)
   endif(PLPLOT_USE_QT5)
   set(PLPLOT_AUTOMOC_MOC_OPTIONS @PLPLOT_AUTOMOC_MOC_OPTIONS@)
 endif(ENABLE_qt)
+
+set(PL_HAVE_QHULL @PL_HAVE_QHULL@)
 
 set(ENABLE_DYNDRIVERS @ENABLE_DYNDRIVERS@)
 
