On mingw (the 'w64' flavour, that can be installed with Cygwin 2.9.0) - the compilation succeeds, - there is 1 test failure for 'info', - nearly all of the 'ii-????-test' tests fail, - no test failures in tp/tests/.
The failing 'info' test is: FAIL: t/where-dir-file.sh Find attached the log file. The output of the command $ginfo --where file1 is ./../../info/t/infodir/file1.info<CR><LF> with a line ending of <CR><LF>, which is why grep 't/infodir/file1.info$' fails. A possible fix is to replace grep 't/infodir/file1.info$' with tr -d '\r' | grep 't/infodir/file1.info$' Then the test passes.
mingw-failures.tar.gz
Description: application/compressed-tar