DragonFly users List (threaded) for 2013-06
a full buildworld may be required to compile the latest world
I just updated libm. That's the second time in a couple of weeks this
library has been updated (this time it was to add 8 new sorely-needed
long double functions).
Rather than bump the shared lib major version again, I introduced symbol
versioning for libm. This means that libm will permanently be called
libm.so.4 as it is now, but we'll update the versions of the symbols
internally as needed in the future.
The drawback is that another full world build may be needed in order to
build HEAD. It's possible rtld can still match the symbols but I didn't
test this as I had to do a full build anyway because I was behind the
previous libm/libc bump.
I suspect we will add symbol versioning to more libraries -- libc is a
good candidate for the next one because the bump to libc.so.8 was more
painful than it should have been, but this was partially due to
insufficient TLS storage space which has also been addressed. It also
resulted in binaries linking to both libc.so.7 and libc.so.8 which
symbol versioning would have avoided.