Sent this note yesterday but libc-hacker is picky about which version of 
me it accepted mail from... resending with the correct From: spelling.

Ok I ran the command:

  make -s update-abi update-abi-config='powerpc64-.*-linux.*'

and

  make -s update-abi update-abi-config='powerpc64-.*-linux.*/notls'

(as two separate builds -with-tls and -without-tls)

But when I run:

  make -sk check-abi

I see the following error:

--- -    2003-03-20 13:28:53.000000000 -0600
+++ /home/sjmunroe/work/build-23/libc.symlist    2003-03-20 
13:28:53.000000000 -0600
@@ -0,0 +1,12 @@
+in6addr_any GLIBC_2.3 g ? D .bss 0000000000000010
+__daylight GLIBC_2.3 g ? D .bss 0000000000000004
+__malloc_initialize_hook GLIBC_2.3 w ? D .bss 0000000000000008
+daylight GLIBC_2.3 w ? D .bss 0000000000000004
+_environ GLIBC_2.3 w ? D .bss 0000000000000008
+__environ GLIBC_2.3 g ? D .bss 0000000000000008
+__after_morecore_hook GLIBC_2.3 w ? D .bss 0000000000000008
+environ GLIBC_2.3 w ? D .bss 0000000000000008
+__fpu_control GLIBC_2.3 g ? D .bss 0000000000000004
+timezone GLIBC_2.3 w ? D .bss 0000000000000008
+__timezone GLIBC_2.3 g ? D .bss 0000000000000008
+__free_hook GLIBC_2.3 w ? D .bss 0000000000000008
make[2]: *** [check-abi-libc] Error 1
make[2]: Target `subdir_check-abi' not remade because of errors.
make[1]: *** [elf/subdir_check-abi] Error 2
make[1]: Target `check-abi' not remade because of errors.
make: *** [check-abi] Error 2

This all seems to be out of arch indepentant code. For example 
time.tzset.c does declare __daylight and __timezone. Do I (PPC64) need 
to do something about this?