[Interest] qmake command usage

[Dale Marchand]

Can someone explain why the following line in a .pro file fails to 
create a softlink:

system(ln -s /home/marchand/test.xml /home/marchand/test2.xml)

but when the output is stored in a variable, the link is created as 
expected:

THROW_AWAY_VAR=$$system(ln -s /home/marchand/test.xml 
/home/marchand/test2.xml)

This is using qmake bundled with Qt 5.4.1.

Dale
Dale Marchand