The gcc bootstrap finally finished. The failure I reported does not
occur with gcc 3.4.6 (+ GNU as) built from source on the same target
machine. Whether this indicates a problem with the binary gcc build I
was using (specifically, its generated header files), or a problem in
m4's ./configure, I'
GNU m4 1.4.13 fails to build on HP-UX 11.11:
make[4]: Entering directory `/usr/local/src/m4-1.4.13/lib'
CC gl_avltree_oset.o
In file included from sys/wait.h:91,
from sys/wait.h:28,
from stdlib.h:307,
from stdlib.h:34,
from gl_a
