--- spack-src/ants/lib/CMakeLists.txt.orig	2021-11-17 20:09:44.586523746 +0100
+++ spack-src/ants/lib/CMakeLists.txt	2021-11-17 20:10:14.057924013 +0100
@@ -10,6 +10,9 @@
 find_package(ITK REQUIRED)
 include(${ITK_USE_FILE})
 
+# Somehow not passed through from ITK
+find_package(GTest REQUIRED)
+
 
 ## SETUP PYBIND11 ##
 add_subdirectory(pybind11)