diff --git a/ObsoleteFiles.inc b/ObsoleteFiles.inc
index fc909c488845..236da23f1cc2 100644
--- a/ObsoleteFiles.inc
+++ b/ObsoleteFiles.inc
@@ -38,6 +38,8 @@
 #   xargs -n1 | sort | uniq -d;
 # done
 
+# 20150719: Remove libarchive.pc
+OLD_FILES+=usr/libdata/pkgconfig/libarchive.pc
 # 20150705: Rename DTrace provider man pages.
 OLD_FILES+=usr/share/man/man4/dtrace-io.4.gz
 OLD_FILES+=usr/share/man/man4/dtrace-ip.4.gz
diff --git a/lib/libarchive/Makefile b/lib/libarchive/Makefile
index 9dfad77aaf94..3870de2a40b9 100644
--- a/lib/libarchive/Makefile
+++ b/lib/libarchive/Makefile
@@ -37,12 +37,6 @@ CFLAGS+=	-DPPMD_32BIT
 .endif
 NO_WCAST_ALIGN.clang=
 
-.ifndef COMPAT_32BIT
-beforeinstall:
-	${INSTALL} -C -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
-		${.CURDIR}/libarchive.pc ${DESTDIR}${LIBDATADIR}/pkgconfig
-.endif
-
 .PATH: ${LIBARCHIVEDIR}/libarchive
 
 # Headers to be installed in /usr/include
diff --git a/lib/libarchive/libarchive.pc b/lib/libarchive/libarchive.pc
deleted file mode 100644
index 3aa1d0453cce..000000000000
--- a/lib/libarchive/libarchive.pc
+++ /dev/null
@@ -1,12 +0,0 @@
-# $FreeBSD$
-prefix=/usr
-exec_prefix=${prefix}
-libdir=${exec_prefix}/lib
-includedir=${prefix}/include
-
-Name: libarchive
-Description: library that can create and read several streaming archive formats
-Version: 3.1.2
-Cflags: -I${includedir}
-Libs: -L${libdir} -larchive
-Libs.private: -lz -lbz2 -llzma -lbsdxml -lcrypto