cross compiling issues

[Allan McRae]

Hi,

I can cross-compile a minimum booting Hurd system but am running into 
issues taking the system from there to something useful...


Using gcc-4.4, I do not get a working C++ cross compiler. It gives 
errors such as:

<path>/lib/gcc/i586-pc-gnu/4.4.0/../../../../i586-pc-gnu/lib/libgcc_s.so: undefined 
reference to `__multf3'
<path>/lib/gcc/i586-pc-gnu/4.4.0/../../../../i586-pc-gnu/lib/libgcc_s.so: undefined 
reference to `__fixunstfsi'
<path>/lib/gcc/i586-pc-gnu/4.4.0/../../../../i586-pc-gnu/lib/libgcc_s.so: undefined 
reference to `__subtf3'

This seems to be a known issue 
(http://www.gnu.org/software/hurd/open_issues/gcc/c++.html), and I did 
see some mention of it being fixed in Debian, but I can not find a 
relevant patch.


If I downgrade to gcc-4.3, I do not build a booting hurd.  The error 
message is:

Hurd server bootstrap: ext2fs.static[device:hd0s1] exec 
initext2fs.static: boot-start.c:278: diskfs_start_bootstrap: Unexpected 
error: No such file or directory.

This is not the error from a missing /servers/exec (although similar).  
Apart from gcc headers, there is no file difference between the gcc-4.4 
and gcc-4.3 builds so that error message may be misleading...


Any hints on how to fix either issue would be much appreciated.

Thanks,
Allan