about pro file

[yop]

i have pro file with text:

CONFIG += qt debug_and_release
TARGET = myProg
DESTDIR += ./bin

so if i compile in Windows (make -f Makefile.Release) i get my exe file in folder "./release"
but if i compile (make -f Makefile.Release) under Linux my exe file in folder "./bin"

why?

Change it to:
DESTDIR = bin