Can't 'make' because libio.h or _G_config.h

[Jon Fram]

I can't get ddd to complete 'make' successfully on a DEC alpha machine.
Most of the installation problems posted to this mailing list seem to come
down to using gcc-2.95 or higher, which I am.  Here is the 'make' output:

# make
No suffix list.
Making all in readline
Making all in vsllib
No suffix list.
Making all in themes
No suffix list.
Making all in ddd
c++ -DHAVE_CONFIG_H -I. -I. -I. -I./..     -DNDEBUG -O2 -g -W -Wall
-trigraphs  -c ddd.C
In file included from
/usr/local/lib/gcc-lib/alpha-dec-osf4.0d/2.95/../../../../include/g++-3/stre
ambuf.h:36,
                 from
/usr/local/lib/gcc-lib/alpha-dec-osf4.0d/2.95/../../../../include/g++-3/iost
ream.h:31,
                 from strclass.h:412,
                 from ddd.h:36,
                 from ddd.C:138:
/usr/local/lib/gcc-lib/alpha-dec-osf4.0d/2.95/../../../../include/g++-3/libi
o.h:30:
_G_config.h: No such file or directory
*** Exit 1
Stop.
*** Exit 1
Stop.

How can I make this work?  Thanks for your help.

Jon
U.C. Berkeley