Jam source state broken?

From: David Abrahams (david.abrahams_at_[hidden])
Date: 2002-03-07 09:21:33

Trying to build the latests Perforce public jam source state is
currently yielding errors:

C:\boost\tools\build\perforce_jam_2_4>jam -sYACC=byacc -sYACCFILES=y.tab
-sYACCFLAGS=-vd
Compiler is Microsoft Visual C++
...found 211 targets...
...using 21 temp targets...
...updating 8 targets...
...using builtins.obj...
...using command.obj...
...using compile.obj...
...using execunix.obj...
...using filent.obj...
...using pathunix.obj...
Yacc1 jamgram.c jamgram.h
YaccMv jamgram.c jamgram.h
Cc bin.ntx86\jamgram.obj
jamgram.c
jamgram.y(311) : error C2065: 'EXEC_UPDATED' : undeclared identifier
jamgram.y(313) : error C2065: 'EXEC_TOGETHER' : undeclared identifier
jamgram.y(315) : error C2065: 'EXEC_IGNORE' : undeclared identifier
jamgram.y(317) : error C2065: 'EXEC_QUIETLY' : undeclared identifier
jamgram.y(319) : error C2065: 'EXEC_PIECEMEAL' : undeclared identifier
jamgram.y(321) : error C2065: 'EXEC_EXISTING' : undeclared identifier

cl /nologo /c /DNT /Fobin.ntx86\jamgram.obj
/Ic:\tools\msvc6\vc98\include jamgram.c

...failed Cc bin.ntx86\jamgram.obj ...
...using expand.obj...
...using glob.obj...
...using hash.obj...
...using headers.obj...
...using lists.obj...
...using make.obj...
...using make1.obj...
...using newstr.obj...
...using option.obj...
...using parse.obj...
...using regexp.obj...
...using rules.obj...
Cc bin.ntx86\scan.obj
scan.c
...using search.obj...
...using timestamp.obj...
...using variable.obj...
...skipped libjam.lib for lack of libjam.lib(jamgram.obj)...
GenFile1 jambase.c

+---------------------------------------------------------------+
David Abrahams
C++ Booster (http://www.boost.org) O__ ==
Pythonista (http://www.python.org) c/ /'_ ==
resume: http://users.rcn.com/abrahams/resume.html (*) \(*) ==
email: david.abrahams_at_[hidden]
+---------------------------------------------------------------+