--- external/upstream/libxc/CMakeLists.txt.orig	2022-12-08 22:28:13 UTC
+++ external/upstream/libxc/CMakeLists.txt
@@ -1,4 +1,4 @@
-find_package(Libxc 6.0.0 CONFIG QUIET COMPONENTS C)
+find_package(Libxc REQUIRED CONFIG QUIET COMPONENTS C)
 if(NOT ${Libxc_FOUND})
     # LibxcConfig.cmake encodes searching only within major version, so need two calls to allow v5 or v6
     find_package(Libxc 5.1.2 CONFIG QUIET COMPONENTS C)
