This patch is based on https://sources.debian.org/src/isc-kea/1.5.0-2/debian/patches/0005-Put-KEA_LOCKFILE_DIR-to-runstatedir.patch/

--- a/src/lib/log/interprocess/Makefile.am
+++ b/src/lib/log/interprocess/Makefile.am
@@ -1,7 +1,7 @@
 SUBDIRS = . tests
 
 AM_CPPFLAGS = -I$(top_srcdir)/src/lib -I$(top_builddir)/src/lib
-AM_CPPFLAGS += -DLOCKFILE_DIR=\"$(localstatedir)/run/$(PACKAGE_NAME)\"
+AM_CPPFLAGS += -DLOCKFILE_DIR=\"$(runstatedir)/$(PACKAGE_NAME)\"
 AM_CPPFLAGS += $(BOOST_INCLUDES)
 
 AM_CXXFLAGS = $(KEA_CXXFLAGS)