Cannot build bash-2.05a

[Ansel Freniere]

Here's what I have:

# uname -a
HP-UX crusty B.10.20 A 9000/777 2016615644 two-user license

and

# gcc -v
/usr/local/bin/gcc -v
Reading specs from /opt/gcc/lib/gcc-lib/hppa1.1-hp-hpux10.20/3.0.1/specs
Configured with: ./configure  : (reconfigured) ./configure  : 
(reconfigured) ./configure  : (reconfigured) ./configure
Thread model: single
gcc version 3.0.1

configure found gcc and all that and reports the system as 
"hppa1.1-hp-hpux10.20".  But:

# make

          ***********************************************************
          *                                                         *
          * GNU bash, version 2.05a.0(2)-release (hppa1.1-hp-hpux10.20)
          *                                                         *
          ***********************************************************

        rm -f execute_cmd.o
        gcc  -DPROGRAM='"bash"' -DCONF_HOSTTYPE='"hppa1.1"' 
-DCONF_OSTYPE='"hpux10.20"' -DCONF_MACHTYPE='"hppa1.1-hp-hpux10.20"' 
-DCONF_VENDOR='"hp"' -DSHELL  -DHAVE_CONFIG_H -DHPUX   -I.  -I. -I./include 
-I./lib -g -O2 -c execute_cmd.c
execute_cmd.c: In function `execute_builtin':
execute_cmd.c:2782: `eval_builtin' undeclared (first use in this function)
execute_cmd.c:2782: (Each undeclared identifier is reported only once
execute_cmd.c:2782: for each function it appears in.)
execute_cmd.c:2795: `source_builtin' undeclared (first use in this function)
execute_cmd.c:2814: `return_builtin' undeclared (first use in this function)
execute_cmd.c: In function `execute_subshell_builtin_or_function':
execute_cmd.c:3010: `jobs_builtin' undeclared (first use in this function)
execute_cmd.c: In function `execute_builtin_or_function':
execute_cmd.c:3101: `exec_builtin' undeclared (first use in this function)
execute_cmd.c:3129: `command_builtin' undeclared (first use in this function)
*** Error exit code 1

Stop.

TIA for any help.

-Ansel.