can't build bjam on cygwin

From: Eric Niebler (eric_at_[hidden])
Date: 2005-12-06 13:11:22

I just synced to CVS main, and now I can't build bjam under cygwin. 
Here's the output. Any clue?

$ ./build.sh
###
### Using 'gcc' toolset.
###
rm -rf bootstrap
mkdir bootstrap
gcc -o bootstrap/jam0 command.c compile.c debug.c execunix.c expand.c 
fileunix.c glob.c hash.c hdrmacro.c headers.c jam.c jambase.c jamgram.c 
lists.c make.c make1.c newstr.c option.c parse.c pathunix.c pathvms.c 
regexp.c rules.c scan.c search.c subst.c timestamp.c variable.c 
modules.c strings.c filesys.c builtins.c pwd.c class.c native.c 
w32_getreg.c modules
/set.c modules/path.c modules/regex.c modules/property-set.c 
modules/sequence.c modules/order.c execnt.c filent.c
./bootstrap/jam0 -f build.jam --toolset=gcc --toolset-root= clean
assertion "l != 0" failed: file "expand.c", line 691
./build.sh: line 13: 484 Aborted (core dumped) $@

-- 
Eric Niebler
Boost Consulting
www.boost-consulting.com