fix wmake to use warning messages TRYING_UNDEF_UNDEF and MACRO_UNDEFINED in debug mode only
do formatting changes
do more changes in wmake reggression test for better portability
do posix project more portable
add bootstrap build of tools necessary for wmake regression tests
revert back cat utility use
add definition of STDIN_FILENO, STDOUT_FILENO and STDERR_FILENO if it is not defined by standard headers
update clibext.h header after wio.h change
update regression tests main make file after fixing wmake
it is not good idea to disable build dlgprs utility
fix incorrect change in make file