On 20081011, Khem RAJ writes:
You have to bar gcc trying to build unwinding at stage 1.

/trunk/patches/gcc/4.2.0/290-sh-without-headers.patch | 26 26 0 0 ++++++++++++++++++++++++++
/trunk/patches/gcc/4.2.1/290-sh-without-headers.patch | 26 26 0 0 ++++++++++++++++++++++++++
/trunk/patches/gcc/4.2.2/290-sh-without-headers.patch | 26 26 0 0 ++++++++++++++++++++++++++
/trunk/patches/gcc/4.3.1/350-sh-without-headers.patch | 26 26 0 0 ++++++++++++++++++++++++++
/trunk/patches/gcc/4.2.3/310-sh-without-headers.patch | 26 26 0 0 ++++++++++++++++++++++++++
/trunk/patches/gcc/4.3.2/350-sh-without-headers.patch | 26 26 0 0 ++++++++++++++++++++++++++
/trunk/patches/gcc/4.2.4/310-sh-without-headers.patch | 26 26 0 0 ++++++++++++++++++++++++++
7 files changed, 182 insertions(+)

Original patch from gentoo: gentoo/src/patchsets/gcc/4.3.0/gentoo/11_all_gcc-netbsd-symbolic.patch

http://bugs.gentoo.org/122698

diff -durN gcc-4.3.0.orig/gcc/config/netbsd-elf.h gcc-4.3.0/gcc/config/netbsd-elf.h

--- gcc-4.3.0.orig/gcc/config/netbsd-elf.h	2007-09-03 18:14:04.000000000 +0200

+++ gcc-4.3.0/gcc/config/netbsd-elf.h	2008-06-10 14:44:21.000000000 +0200

@@ -82,6 +82,7 @@

 #define NETBSD_LINK_SPEC_ELF \

   "%{assert*} %{R*} %{rpath*} \

    %{shared:-shared} \

+   %{symbolic:-Bsymbolic} \

    %{!shared: \

      -dc -dp \

      %{!nostdlib: \