Ruby19 crash in cygwin

Not sure if this is the appropriate forum for this:

I compiled ruby 1.9 from trunk on cygwin (gcc 3.4.4), default configure
options save for ‘19’ suffix. The interpreter crashes when it tries to
read a program:

gdb ruby19
run
puts “yo”

Program received signal SIGSEGV, Segmentation fault.
0x6b419bc6 in rb_sourceline () from /usr/local/bin/cygruby1919.dll

backtrace
(gdb) backtrace
#0 0x6b419bc6 in rb_sourceline () from /usr/local/bin/cygruby1919.dll
#1 0x6b41a01f in rb_eval_string () from /usr/local/bin/cygruby1919.dll
#2 0x6b5a1dd5 in cygruby1919!Init_tcltklib () from
/usr/local/bin/cygruby1919.dll
#3 0x6b4affef in cygruby1919!Init_ext () from
/usr/local/bin/cygruby1919.dll
#4 0x6b47765b in ruby_init_loadpath () from
/usr/local/bin/cygruby1919.dll
#5 0x00000000 in ?? ()