diff --git a/lib/liblzma/Makefile b/lib/liblzma/Makefile
--- a/lib/liblzma/Makefile
+++ b/lib/liblzma/Makefile
@@ -154,8 +154,7 @@
 
 CLEANFILES+=	liblzma.pc
 
-FILES=		liblzma.pc
-FILESDIR=	${LIBDATADIR}/pkgconfig
+PCFILES=	liblzma.pc
 
 liblzma.pc: liblzma.pc.in
 	sed -e 's,@prefix@,/usr,g ; \
diff --git a/lib/libmagic/Makefile b/lib/libmagic/Makefile
--- a/lib/libmagic/Makefile
+++ b/lib/libmagic/Makefile
@@ -86,7 +86,6 @@
 	sed -e 's,X.YY,${FILEVER:S,",,g:S,.,,g},g' ${.ALLSRC} > ${.TARGET}
 .endfor
 
-FILES+=			libmagic.pc
-FILESDIR_libmagic.pc=	${LIBDATADIR}/pkgconfig
+PCFILES=	libmagic.pc
 
 .include <bsd.lib.mk>
diff --git a/lib/libusb/Makefile b/lib/libusb/Makefile
--- a/lib/libusb/Makefile
+++ b/lib/libusb/Makefile
@@ -38,8 +38,7 @@
 CFLAGS+=	-DCOMPAT_32BIT
 .endif
 
-FILES=		libusb-0.1.pc libusb-1.0.pc libusb-2.0.pc
-FILESDIR=	${LIBDATADIR}/pkgconfig
+PCFILES=	libusb-0.1.pc libusb-1.0.pc libusb-2.0.pc
 
 #
 # Cross platform support
diff --git a/lib/libz/Makefile b/lib/libz/Makefile
--- a/lib/libz/Makefile
+++ b/lib/libz/Makefile
@@ -75,7 +75,6 @@
 	(export LD_LIBRARY_PATH=. ; \
 		echo hello world | ./minigzip | ./minigzip -d )
 
-FILES=		zlib.pc
-FILESDIR=	${LIBDATADIR}/pkgconfig
+PCFILES=	zlib.pc
 
 .include <bsd.lib.mk>