eMake was invoked with an invalid value for the --emake-cygwin
option.
Description
The --emake-cygwin command-line option is a multistate option. When
specified, the value must begin with Y, N, or A; or y, n, or a. Any
other value produces this error.
--emake-cygwin option value
Meaning
Y
require cygwin1.dll
N
ignore cygwin1.dll
A
load cygwin1.dll if available
Reasons
An invalid value was specified for the --emake-cygwin command-line
option.
Fixes
Correct the value used for the --emake-cygwin command-line option,
or remove --emake-cygwin from the command-line.