diff -urN primus_vk.orig/Makefile primus_vk/Makefile
--- primus_vk.orig/Makefile	2021-08-12 15:11:48.640111325 +0200
+++ primus_vk/Makefile	2021-08-12 15:24:48.860047388 +0200
@@ -1,12 +1,12 @@
 DESTDIR      ?=
-PREFIX        = /usr/local
+PREFIX        = /usr
 INSTALL       = /usr/bin/install
 override INSTALL += -D
 MSGFMT        = /usr/bin/msgfmt
 SED           = /bin/sed
 LN            = /bin/ln
 bindir        = $(PREFIX)/bin
-libdir        = $(PREFIX)/lib
+libdir        = $(PREFIX)/${LIBDIR}
 sysconfdir    = $(PREFIX)/etc
 datarootdir   = ${PREFIX}/share
 datadir       = ${datarootdir}
@@ -41,3 +41,4 @@
 	$(INSTALL) -m644 "primus_vk.json" -t "$(DESTDIR)$(datadir)/vulkan/implicit_layer.d/"
 	$(INSTALL) -m644 "nv_vulkan_wrapper.json" -t "$(DESTDIR)$(datadir)/vulkan/icd.d/"
 	$(INSTALL) -m755 "pvkrun.in.sh" "$(DESTDIR)$(bindir)/pvkrun"
+