configure errors in latest snapshots on HPUX 11.00

[Markus Werle]

> configuring with --disable-nls yields other symbols missing:

on hpux-11.0 it is even worse: same error as before:
# ./configure --prefix=/work/markus/opt/binutils-000922-disable-nls
--disable-nls
[...]
# gmake
[...]
cc -g -o size size.o bucomm.o version.o filemode.o
../bfd/.libs/libbfd.a ../libiberty/libiberty.a -lm
/usr/ccs/bin/ld: Unsatisfied symbols:
   alloca (code)