build failure

[Clint Adams]

> My error.  Debug macros (due to building from my tst hierarchy).  Delete 
> "lexer_*.c" or edit them and change "EXIT( )" to "exit( )".

That still failed, though I've lost the error messages.  HEAD built
fine, but all tests are failing; here is an excerpt.

/bin/sh is bash in this case:

FAIL: t.env
./t.nullstatsprefix: line 9:  1512 Done                    ( echo; echo 'blah' )
      1513 Aborted                 | $VAL ../bogofilter -p -v -e -C >$TMPDIR/out
./t.nullstatsprefix: line 1:  1514 Aborted                 rm -r -f core ./checks.1507.20030116T182052
FAIL: t.nullstatsprefix
./t.lexer: line 14:  1524 Aborted                 cat ${srcdir}/inputs/t.lexer.inp
      1525                       | ../bogolexer -p
      1526                       | sort -u >${TMPDIR}/t.lexer.out
./t.lexer: line 1:  1527 Aborted                 rm -r -f core ./checks.1519.20030116T182054
FAIL: t.lexer

I'll look into it a bit more shortly.