diff -ruN a/auxiliary_files/CMakeLists.txt b/auxiliary_files/CMakeLists.txt
--- a/auxiliary_files/CMakeLists.txt	2023-01-18 07:54:18.355957000 +0100
+++ b/auxiliary_files/CMakeLists.txt	2023-01-22 00:35:54.387905181 +0100
@@ -64,22 +64,12 @@
 	file(COPY "config_files/mumble-server.conf" DESTINATION ${CMAKE_CURRENT_BINARY_DIR})
 
 	if(UNIX AND NOT APPLE)
-		get_pkgconf_variable(
-			OUTPUT_VARIABLE SYSUSERS_DIR
-			MODULE systemd
-			VARIABLE_NAME sysusersdir
-			QUIET
-		)
+		pkg_get_variable(SYSUSERS_DIR systemd sysusersdir)
 		if(NOT SYSUSERS_DIR)
 			# Fallback value, in case it could not be fetched via pkg-config
 			set(SYSUSERS_DIR "${CMAKE_INSTALL_SYSCONFDIR}/sysconfig.d")
 		endif()
-		get_pkgconf_variable(
-			OUTPUT_VARIABLE SYSTEMD_SERVICE_DIR
-			MODULE systemd
-			VARIABLE_NAME systemd_system_unit_dir
-			QUIET
-		)
+		pkg_get_variable(SYSTEMD_SERVICE_DIR systemd systemd_system_unit_dir)
 		if(NOT SYSTEMD_SERVICE_DIR)
 			# Default to /etc/systemd/system - This is not where packages ought to install their service files (rather
 			# it's where an admin is supposed to add their system files), but this seems to be the most consistent