cygport compile command fails

[Tatsuro MATSUOKA]

Hello

In order attach patch to QT tried to use the cygport.
Download qt5-base-5.9.4-2.src
and go to directory qt5-base-5.9.4-2.src

$ cygport qt5-base.cygport compile
>>> Compiling qt5-base-5.9.4-2.x86_64
/usr/share/cygport/lib/syntax.cygpart: line 156: /usr/src/qt5-base-5.9.4-2.src/qt5-base-5.9.4-2.x86_64/log/qt5-base-5.9.4-2-compile.log: No such file or directory

What is wrong? 

Tatsuro