diff -u gmp-5.0.5+dfsg/debian/changelog gmp-5.0.5+dfsg/debian/changelog
--- gmp-5.0.5+dfsg/debian/changelog
+++ gmp-5.0.5+dfsg/debian/changelog
@@ -1,3 +1,9 @@
+gmp (2:5.0.5+dfsg-2+x32) unreleased; urgency=low
+
+  * Add patch from H.J. Lu for X32 support.
+
+ -- Daniel Schepler <schepler@debian.org>  Sat, 12 Jan 2013 09:13:28 -0800
+
 gmp (2:5.0.5+dfsg-2) unstable; urgency=low
 
   * Revert to FAT binary situation of 5.0.4: disabled for amd64,
diff -u gmp-5.0.5+dfsg/debian/patches/series gmp-5.0.5+dfsg/debian/patches/series
--- gmp-5.0.5+dfsg/debian/patches/series
+++ gmp-5.0.5+dfsg/debian/patches/series
@@ -1 +1 @@
-# None at present
+x32_support.diff
only in patch2:
unchanged:
--- gmp-5.0.5+dfsg.orig/debian/patches/x32_support.diff
+++ gmp-5.0.5+dfsg/debian/patches/x32_support.diff
@@ -0,0 +1,60 @@
+Index: gmp-5.0.5+dfsg/configure
+===================================================================
+--- gmp-5.0.5+dfsg.orig/configure	2013-01-12 09:22:10.000000000 -0800
++++ gmp-5.0.5+dfsg/configure	2013-01-12 09:22:26.000000000 -0800
+@@ -5215,7 +5215,15 @@
+ 	CALLING_CONVENTIONS_OBJS_64='amd64call.lo amd64check$U.lo'
+ 	SPEED_CYCLECOUNTER_OBJ_64=x86_64.lo
+ 	cyclecounter_size_64=2
+-	abilist="64 32"
++	path_x32="$path_64"
++	limb_x32=longlong
++	cclist_x32="gcc"
++	gcc_x32_cflags="-O2 -mx32"
++	any_x32_testlist="sizeof-long-4"
++	CALLING_CONVENTIONS_OBJS_x32='amd64call.lo amd64check$U.lo'
++	SPEED_CYCLECOUNTER_OBJ_x32=x86_64.lo
++	cyclecounter_size_x32=2
++	abilist="x32 64 32"
+ 
+ 	case $host in
+ 	  *-*-solaris*)
+@@ -28532,7 +28540,7 @@
+  ;;
+ 	  esac
+           ;;
+-        64)
++        64|x32)
+ 
+ echo "include_mpn(\`x86_64/x86_64-defs.m4')" >> $gmp_tmpconfigm4i
+ 
+Index: gmp-5.0.5+dfsg/configure.in
+===================================================================
+--- gmp-5.0.5+dfsg.orig/configure.in	2013-01-12 09:22:10.000000000 -0800
++++ gmp-5.0.5+dfsg/configure.in	2013-01-12 09:22:22.000000000 -0800
+@@ -1599,7 +1599,15 @@
+ 	CALLING_CONVENTIONS_OBJS_64='amd64call.lo amd64check$U.lo'
+ 	SPEED_CYCLECOUNTER_OBJ_64=x86_64.lo
+ 	cyclecounter_size_64=2
+-	abilist="64 32"
++	path_x32="$path_64"
++	limb_x32=longlong
++	cclist_x32="gcc"
++	gcc_x32_cflags="-O2 -mx32"
++	any_x32_testlist="sizeof-long-4"
++	CALLING_CONVENTIONS_OBJS_x32='amd64call.lo amd64check$U.lo'
++	SPEED_CYCLECOUNTER_OBJ_x32=x86_64.lo
++	cyclecounter_size_x32=2
++	abilist="x32 64 32"
+ 
+ 	case $host in
+ 	  *-*-solaris*)
+@@ -3244,7 +3252,7 @@
+ 	      GMP_INCLUDE_MPN(x86/darwin.m4) ;;
+ 	  esac
+           ;;
+-        64)
++        64|x32)
+           GMP_INCLUDE_MPN(x86_64/x86_64-defs.m4)
+           AC_DEFINE(HAVE_HOST_CPU_FAMILY_x86_64)
+ 	  case $host in