Not sure about the details of this issue, but r17772 seems to build fine
on Cygwin.
Here's the output of "make test" on my box.
Failed Test Stat Wstat Total Fail Failed List of Failed
-------------------------------------------------------------------------------
t/codingstd/c_code_coda.t 1 256 2 1 50.00% 1
t/codingstd/c_indent.t 2 512 2 2 100.00% 1-2
t/codingstd/cppcomments.t ?? ?? % ??
t/codingstd/tabs.t 1 256 1 1 100.00% 1
t/codingstd/trailing_space.t 1 256 1 1 100.00% 1
t/op/trans.t 1 256 21 1 4.76% 13
t/pmc/iterator.t 2 512 43 2 4.65% 42-43
t/pmc/os.t 2 512 15 2 13.33% 6 9
t/src/compiler.t 1 256 6 1 16.67% 1
t/src/extend.t 12 3072 16 12 75.00% 1-12
t/src/intlist.t 4 1024 4 4 100.00% 1-4
t/src/io.t 9 2304 20 9 45.00% 2-4 6-7 16-19
t/stm/runtime.t 2 512 5 2 40.00% 2 4
8 tests and 577 subtests skipped.
Failed 13/270 test scripts, 95.19% okay. 39/6675 subtests failed, 99.42%
okay.
Ron