diff -Nru o3dgc-0~20131011/debian/changelog o3dgc-0~20131011/debian/changelog
--- o3dgc-0~20131011/debian/changelog	2015-05-02 13:51:57.000000000 +0000
+++ o3dgc-0~20131011/debian/changelog	2016-09-06 17:42:44.000000000 +0000
@@ -1,3 +1,9 @@
+o3dgc (0~20131011-3) unstable; urgency=medium
+
+  * [fc533f9] multiarchify
+
+ -- Rene Engelhard <rene@debian.org>  Tue, 06 Sep 2016 19:42:44 +0200
+
 o3dgc (0~20131011-2) unstable; urgency=medium
 
   * build also dec_lib and enc_lib with -fPIC
diff -Nru o3dgc-0~20131011/debian/control o3dgc-0~20131011/debian/control
--- o3dgc-0~20131011/debian/control	2014-09-30 20:43:58.000000000 +0000
+++ o3dgc-0~20131011/debian/control	2016-09-06 17:41:54.000000000 +0000
@@ -2,7 +2,7 @@
 Priority: optional
 Maintainer: Debian Multimedia Maintainers <pkg-multimedia-maintainers@lists.alioth.debian.org>
 Uploaders: Rene Engelhard <rene@debian.org>
-Build-Depends: debhelper (>= 9), cmake
+Build-Depends: debhelper (>= 9), cmake, dh-exec (>= 0.3)
 Standards-Version: 3.9.5
 Section: libs
 #Homepage: <insert the upstream URL, if relevant>
@@ -12,6 +12,7 @@
 Package: libo3dgc-dev
 Section: libdevel
 Architecture: any
+Multi-Arch: same
 Depends: ${misc:Depends}
 Description: Open 3D Graphics Compression library (development)
  Open3DGC provides an efficient implementation of patent free MPEG tools for
diff -Nru o3dgc-0~20131011/debian/libo3dgc-dev.install o3dgc-0~20131011/debian/libo3dgc-dev.install
--- o3dgc-0~20131011/debian/libo3dgc-dev.install	2014-09-30 19:21:44.000000000 +0000
+++ o3dgc-0~20131011/debian/libo3dgc-dev.install	2016-09-06 17:42:44.000000000 +0000
@@ -1,6 +1,7 @@
-./src/o3dgc_common_lib/libo3dgc_common_lib.a usr/lib
-./src/o3dgc_decode_lib/libo3dgc_dec_lib.a usr/lib
-./src/o3dgc_encode_lib/libo3dgc_enc_lib.a usr/lib
+#! /usr/bin/dh-exec
+./src/o3dgc_common_lib/libo3dgc_common_lib.a usr/lib/${DEB_HOST_MULTIARCH}
+./src/o3dgc_decode_lib/libo3dgc_dec_lib.a usr/lib/${DEB_HOST_MULTIARCH}
+./src/o3dgc_encode_lib/libo3dgc_enc_lib.a usr/lib/${DEB_HOST_MULTIARCH}
 ./src/o3dgc_common_lib/inc/* usr/include/o3dgc
 ./src/o3dgc_decode_lib/inc/* usr/include/o3dgc
 ./src/o3dgc_encode_lib/inc/* usr/include/o3dgc