libxml2: Disable silent rules

Also add size to checksums.

textproc/libxml2/Portfile

@@ -28,7 +28,8 @@ master_sites        ftp://gd.tuwien.ac.at/pub/libxml/ \
                     ${homepage}sources/ \
                     ftp://xmlsoft.org/${name}/
 checksums           rmd160  f596599cbcac6d3175482177c3320a56e68b49a2 \
-                    sha256  f63c5e7d30362ed28b38bfa1ac6313f9a80230720b7fb6c80575eeab3ff5900c
+                    sha256  f63c5e7d30362ed28b38bfa1ac6313f9a80230720b7fb6c80575eeab3ff5900c \
+                    size    5467389
 
 post-extract {
     reinplace -locale C "s|/etc|${prefix}/etc|g" \
@@ -40,7 +41,8 @@ post-extract {
         ${worksrcpath}/doc/xmllint.1
 }
 
-configure.args      --enable-static \
+configure.args      --disable-silent-rules \
+                    --enable-static \
                     --without-python
 
 destroot.keepdirs   ${destroot}${prefix}/etc/xml