problem building 0.15.7

[Dave Lovelace]

OK, having been dealing with other things, I thought I'd finally get around to
updating bogofilter.  We're still running 0.11.1.8.  I downloaded the stable
release, which appears to be 0.15.7.  I ran configure, which produced lots
of output but no errors.  Now I run make, & here is what I get:

----snip----snip----snip----snip----snip----snip----snip----snip----snip----
$ make
No suffix list.
Making all in trio
No suffix list.
Making all in src
        make  all-recursive
Making all in .
        source='globals.c' object='globals.o' libtool=no \
        depfile='.deps/globals.Po' tmpdepfile='.deps/globals.TPo' \
        depmode=gcc /bin/ksh ../depcomp \
        gcc -DHAVE_CONFIG_H -I. -I. -I.  -I../trio -I..   -I/usr/local/BerkeleyDB.4.1/include  -DBOGOFILTER -g -O2  -Wall -W -Wstrict-prototypes -Wmissing-prototypes -Wshadow -Wbad-function-cast -Wcast-qual -Wcast-align -Wwrite-strings -Waggregate-return -Wmissing-declarations -Wnested-externs -ggdb -fno-common -Wchar-subscripts -Wcomment -Wimplicit -Wreturn-type -c `test -f 'globals.c' || echo './'`globals.c
In file included from globals.h:10,
                 from globals.c:14:
common.h:92: parse error before `020'
*** Error code 1

Stop.
*** Error code 1

Stop.
*** Error code 1

Stop.
*** Error code 1

Stop.
----snip----snip----snip----snip----snip----snip----snip----snip----snip----

This is under DG/UX for 88k (an old, basically SYSV system).
Output of uname -a:
dgux fci4100 R4.11MU06 generic AViiON mc88100

For what it's worth, I didn't have any problem building bogofilter in the
past (except for the need to build BerkeleyDB first).

Line 92 of common.h ... hmm.  Here it is with some context (& prepended line
numbers):

----snip----snip----snip----snip----snip----snip----snip----snip----snip----
88:
89:typedef enum ex_e { EX_SPAM	= RC_SPAM,
90:		    EX_HAM	= RC_HAM,
91:		    EX_UNSURE	= RC_UNSURE,
92:		    EX_OK	= 0,
93:		    EX_ERROR	= 3 } ex_t;
94:
----snip----snip----snip----snip----snip----snip----snip----snip----snip----

I don't know what in all this is getting #define'd as 020.

Any help would be much appreciated.

-- 
- Dave Lovelace
  dave at firstcomp.biz
  davel at cyberspace.org