diff -u gcc-4.7-4.7.3/debian/rules.conf gcc-4.7-4.7.3/debian/rules.conf
--- gcc-4.7-4.7.3/debian/rules.conf
+++ gcc-4.7-4.7.3/debian/rules.conf
@@ -290,10 +290,10 @@
   LIBC_BIARCH_BUILD_DEP += libc6-dev-x32 [amd64 i386], libx32gcc1 [amd64 i386],
 endif
 ifneq (,$(findstring armel,$(biarchhfarchs)))
-  LIBC_BIARCH_BUILD_DEP += libc6-dev-armhf [armel],
+  LIBC_BIARCH_BUILD_DEP += libc6-dev-armhf [armel], libhfgcc1 [armel],
 endif
 ifneq (,$(findstring armhf,$(biarchsfarchs)))
-  LIBC_BIARCH_BUILD_DEP += libc6-dev-armel [armhf],
+  LIBC_BIARCH_BUILD_DEP += libc6-dev-armel [armhf], libsfgcc1 [armhf],
 endif
 else
   LIBC_BUILD_DEP = $(LIBC_DEV_DEP),
diff -u gcc-4.7-4.7.3/debian/changelog gcc-4.7-4.7.3/debian/changelog
--- gcc-4.7-4.7.3/debian/changelog
+++ gcc-4.7-4.7.3/debian/changelog
@@ -1,3 +1,11 @@
+gcc-4.7 (4.7.3-2ubuntu4) raring; urgency=low
+
+  * Add build dependency on libsfgcc1 [armhf], needed for dependency
+    information of libsfstdc++6-4.7-dbg when libsfgcc1 is built from
+    newer sources.
+
+ -- Matthias Klose <doko@ubuntu.com>  Mon, 22 Apr 2013 11:55:05 +0200
+
 gcc-4.7 (4.7.3-2ubuntu3) raring; urgency=low
 
   * Merge with Debian; remaining changes:
diff -u gcc-4.7-4.7.3/debian/control gcc-4.7-4.7.3/debian/control
--- gcc-4.7-4.7.3/debian/control
+++ gcc-4.7-4.7.3/debian/control
@@ -6,7 +6,7 @@
 Uploaders: Matthias Klose <doko@debian.org>
 Standards-Version: 3.9.4
 Build-Depends: debhelper (>= 5.0.62), 
-  libc6.1-dev (>= 2.13-0ubuntu6) [alpha ia64] | libc0.3-dev (>= 2.13-0ubuntu6) [hurd-i386] | libc0.1-dev (>= 2.13-0ubuntu6) [kfreebsd-i386 kfreebsd-amd64] | libc6-dev (>= 2.13-0ubuntu6) , libc6-dev (>= 2.13-31) [armel armhf], libc6-dev-amd64 [i386 x32], libc6-dev-sparc64 [sparc], libc6-dev-s390 [s390x], libc6-dev-s390x [s390], libc6-dev-i386 [amd64 x32], libc6-dev-powerpc [ppc64], libc6-dev-ppc64 [powerpc], libc0.1-dev-i386 [kfreebsd-amd64], lib32gcc1 [amd64 ppc64 kfreebsd-amd64 s390x x32], lib64gcc1 [i386 powerpc sparc s390 x32], libc6-dev-mips64 [mips mipsel], libc6-dev-mipsn32 [mips mipsel], libc6-dev-x32 [amd64 i386], libx32gcc1 [amd64 i386], libc6-dev-armhf [armel], libc6-dev-armel [armhf],
+  libc6.1-dev (>= 2.13-0ubuntu6) [alpha ia64] | libc0.3-dev (>= 2.13-0ubuntu6) [hurd-i386] | libc0.1-dev (>= 2.13-0ubuntu6) [kfreebsd-i386 kfreebsd-amd64] | libc6-dev (>= 2.13-0ubuntu6) , libc6-dev (>= 2.13-31) [armel armhf], libc6-dev-amd64 [i386 x32], libc6-dev-sparc64 [sparc], libc6-dev-s390 [s390x], libc6-dev-s390x [s390], libc6-dev-i386 [amd64 x32], libc6-dev-powerpc [ppc64], libc6-dev-ppc64 [powerpc], libc0.1-dev-i386 [kfreebsd-amd64], lib32gcc1 [amd64 ppc64 kfreebsd-amd64 s390x x32], lib64gcc1 [i386 powerpc sparc s390 x32], libc6-dev-mips64 [mips mipsel], libc6-dev-mipsn32 [mips mipsel], libc6-dev-x32 [amd64 i386], libx32gcc1 [amd64 i386], libc6-dev-armhf [armel], libhfgcc1 [armel], libc6-dev-armel [armhf], libsfgcc1 [armhf],
   m4, libtool, autoconf2.64, automake (>= 1:1.11), automake (<< 1:1.12), 
   libunwind7-dev (>= 0.98.5-6) [ia64], libatomic-ops-dev [ia64],
   zlib1g-dev, gawk, lzma, xz-utils, patchutils,