Question on libgcc_eh

[Takis Psarogiannakopoulos <takis at XFree86 dot Org>]

Hi folks,

I am trying to build/port latest GCC-3.2.2 to the (ix86) DG/UX 
OS and probably submit this port to the GCC project.
I have a question: To make the java compiler work correctly
we use the  Sjlj model. Even if it is a bit slower that the 
frame style, a fully funtional compiler is achived
(aka not only C/C++/objc but also java). 
so wee to pass to configure the --enable-sjlj-exceptions.

However the "make bootstrap" fails in the following:

Entering directory
`etc etc libstdc++-v3/testsuite'

g++ -shared-libgcc -B(location) -nostdinc++ etc etc etc

abi_check.o: In function `main':
abi_check.o(.text+0x1bb7): undefined reference to `_Unwind_SjLj_Register'
abi_check.o(.text+0x4a00): undefined reference to `_Unwind_SjLj_Unregister'
abi_check.o(.text+0x4c1d): undefined reference to `_Unwind_SjLj_Resume'


Well these _Unwind_SjLj_* symbols are located in the libgcc_eh.a
For examble,

# nm libgcc_eh.a | grep _Unwind_SjLj_Resume

[37]    |      1680|     256|FUNC |GLOB |0    |1      |_Unwind_SjLj_Resume

Anyone can tell me what is wrong here? Why it doesnt link the libgcc_eh.a
where it is obvious that is needed for a correct linking.
What is the idea of a libgcc_eh.a? I was under the impression that it was
always the libgcc.a that we were using! 
Finally anyone has any idea what is the configuration variable (if
any) that I can define inside config/i386/dgux.h and resolve this issue?

Regards,
Takis