diff -u gcc-4.6-4.6.1/debian/rules2 gcc-4.6-4.6.1/debian/rules2
--- gcc-4.6-4.6.1/debian/rules2
+++ gcc-4.6-4.6.1/debian/rules2
@@ -413,7 +413,7 @@
 ifneq (,$(filter $(DEB_TARGET_ARCH), amd64 i386 kfreebsd-i386 kfreebsd-amd64))
   ifneq (,$(filter $(distrelease),etch lenny dapper hardy))
     CONFARGS += --with-arch-32=i486
-  else ifneq (,$(filter $(distrelease),squeeze wheezy sid jaunty karmic lucid))
+  else ifneq (,$(filter $(distrelease),squeeze wheezy sid jaunty karmic))
     CONFARGS += --with-arch-32=i586
   else
     CONFARGS += --with-arch-32=i686
diff -u gcc-4.6-4.6.1/debian/rules.defs gcc-4.6-4.6.1/debian/rules.defs
--- gcc-4.6-4.6.1/debian/rules.defs
+++ gcc-4.6-4.6.1/debian/rules.defs
@@ -980,7 +980,7 @@
 export debian_extra_langs
 
 # multilib
-ifeq (,$(filter $(distrelease),lenny etch squeeze sid dapper hardy jaunty karmic lucid))
+ifeq (,$(filter $(distrelease),lenny etch squeeze sid dapper hardy jaunty karmic))
   biarch_map := i686=x86_64 powerpc=powerpc64 sparc=sparc64 s390=s390x \
 		x86_64=i686 powerpc64=powerpc mips=mips64 mipsel=mips64el
 else
diff -u gcc-4.6-4.6.1/debian/changelog gcc-4.6-4.6.1/debian/changelog
--- gcc-4.6-4.6.1/debian/changelog
+++ gcc-4.6-4.6.1/debian/changelog
@@ -1,3 +1,10 @@
+gcc-4.6 (4.6.1-4ubuntu1~lucid0) lucid; urgency=low
+
+  * Backport to lucid.
+    - i686 optimized.
+
+ -- An Yang <an.euroford@gmail.com>  Mon, 18 Jul 2011 21:14:02 +0800
+
 gcc-4.6 (4.6.1-4ubuntu1) oneiric; urgency=low
 
   * Merge with Debian.