libarchive: build without OpenSSL.

OpenSSL is only used for hash support in the mtree archive format code,
which I believe we can live without.

libarchive/Pkgfile

@@ -5,7 +5,7 @@
 
 name=libarchive
 version=2.8.3
-release=1
+release=2
 source=(http://$name.googlecode.com/files/$name-$version.tar.gz)
 
 build() {
@@ -19,7 +19,7 @@ build() {
 	# needed for the xar format which we can live without.
 	./configure --prefix=/usr --mandir=/usr/man \
 	            --disable-xattr --without-lzmadec \
-	            --without-xml2 --without-expat
+	            --without-xml2 --without-expat --without-openssl
 
 	make
 	make DESTDIR=$PKG install