message( $${QMAKE_FILE_IN} ) did not print the current processing input file

I want to print the current processing file using QMAKE_FILE_开发者_Python百科IN variable how to do it.

Try below message format

message($$QMAKE_FILE_IN)

you can add other text with variable as follow

message(qmake file in value = $$QMAKE_FILE_IN)

"Messages are written out for each Makefile generated by qmake for a given project." (from the documentation), and not during make.