gcc-multiarch.dpatch not supprot sh4?

[Nobuhiro Iwamatsu <iwamatsu@nigauri.org>]

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Hi,

I am now trying to run Debian on Renesas SH(sh4) CPU.

http://buildd.debian-ports.org/status/architecture.php?suite=unstable&a=sh4&buildd=

SH4 cannot build some packages, because include search path does not
have /usr/include/sh4-linux-gnu.  

gcc-4.3:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=546443

I noticed that these were not added so that gcc source package 
had the following code in debian/rules.patch.

- -----
ifneq ($(DEB_TARGET_ARCH),sh4)
  ifeq ($(PKGSOURCE),gcc-snapshot)
    debian_patches += multiarch-include-trunk
  else
    debian_patches += gcc-multiarch
  endif
endif
- -----

Why does not gcc-multiarch.dpatch support sh4? 
When there is a problem, how should I approach? 

Would you teach it?

Best regards,
  Nobuhiro 
- -- 
Nobuhiro Iwamatsu
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