Missing symbol for zero build on bsd port repo using Fedora

[Gary Benson]

Michael Franz wrote:
> I am trying to build zero using the latest bsd repo and getting the
> following error.  I cannot figure out where it is coming from and
> thus what I am missing.
> 
> /home/mfranz/developer/icedtea/IcedTea7-Tip/openjdk-ecj/build/linux-i586/hotspot/outputdir/linux_zero_core/product/libjvm.so:
> undefined reference to `__sync_val_compare_and_swap_4'
> /home/mfranz/developer/icedtea/IcedTea7-Tip/openjdk-ecj/build/linux-i586/hotspot/outputdir/linux_zero_core/product/libjvm.so:
> undefined reference to `__sync_add_and_fetch_4'
> collect2: ld returned 1 exit status

These come from the gcc atomic intrinsics in
ports/hotspot/src/os_cpu/linux_zero/vm/atomic_linux_zero.inline.hpp
(or its BSD equivalent).  If gcc doesn't know how to generate inline
assembly for your platform it drops in calls to functions like those.
I'm guessing you're on x86 or ppc?  gcc ought to be able to handle
that, so maybe it's just a case of enabling something there, but I'm
no expert.  aph would know more...

Cheers,
Gary

-- 
http://gbenson.net/