Description: Align udev variable in Makefile with udev.pc,
 and how this is typically done using pkg-config.
 .
 Probably suitable for upstream.
Author: Chris Hofstaedtler <zeha@debian.org>
Last-Update: 2023-12-16
Bug-Debian: https://bugs.debian.org/1058835

--- a/Makefile
+++ b/Makefile
@@ -12,8 +12,8 @@
 
 # PREFIX is used to prefix where the files will be installed under DESTDIR
 PREFIX?=/usr
-# UDEV_PREFIX is specifically a prefix for udev files
-UDEV_PREFIX?=$(PREFIX)
+# UDEVDIR is specifically a prefix for udev files
+UDEVDIR?=$(shell pkg-config --variable=udevdir udev)
 # DESTDIR is used to install into a different root directory
 DESTDIR?=/
 # Specify the kernel directory to use
@@ -108,8 +108,8 @@
 udev_install:
 	@echo -e "\n::\033[34m Installing OpenRazer udev rules\033[0m"
 	@echo "====================================================="
-	install -m 644 -v -D install_files/udev/99-razer.rules $(DESTDIR)$(UDEV_PREFIX)/lib/udev/rules.d/99-razer.rules
-	install -m 755 -v -D install_files/udev/razer_mount $(DESTDIR)$(UDEV_PREFIX)/lib/udev/razer_mount
+	install -m 644 -v -D install_files/udev/99-razer.rules $(DESTDIR)$(UDEVDIR)/rules.d/99-razer.rules
+	install -m 755 -v -D install_files/udev/razer_mount $(DESTDIR)$(UDEVDIR)/razer_mount
 
 appstream_install:
 	@echo -e "\n::\033[34m Installing OpenRazer AppStream metadata\033[0m"