diff -aur opensc.pristine/PKGBUILD opensc.new/PKGBUILD
--- opensc.pristine/PKGBUILD	2013-02-07 16:04:13.593135857 +0000
+++ opensc.new/PKGBUILD	2013-02-07 16:04:49.549799335 +0000
@@ -4,7 +4,7 @@
 
 pkgname=opensc
 pkgver=0.13.0
-pkgrel=1
+pkgrel=2
 pkgdesc='Access smart cards that support cryptographic operations'
 arch=('x86_64' 'i686')
 url='http://www.opensc-project.org/opensc/'
@@ -29,6 +29,7 @@
     --enable-openssl \
     --enable-pcsc \
     --enable-zlib \
+    --enable-sm \
     --with-xsl-stylesheetsdir="$_sheetdir"
   make
 }