Inconsist makefile content for alternative makefile filename

In my current project, I plan to have different makefile filenames for Windows and Mac system. So, one of my choice is to use

Makefile.win32 as Windows makefile filename

Makefile.mac as Mac makefile finename

In my root .pro file, I set

win32{

QMAKE_MAKEFILE = Makefile.win32

}

By this method, I can

qmake

mingw32-make -f Makefile.win32

to build all debug tree without problems.


However, it doesn't work for

mingw32-make debug -f Makefile.win32

or

mingw32-make release -f Makefile.win32

After I checked the content of the generated Makefile.win32, The command for default target is correct, but the commands for debug or release (and check) target lost the -f $(MAKEFILE) option

sub-averPen: averPen\$(MAKEFILE) FORCE

cd averPen\ && $(MAKE) -f $(MAKEFILE)

sub-averPen-sub_Debug: averPen\$(MAKEFILE)

cd averPen\ && $(MAKE) debug

That's why I cannot use debug or release target to build my system.


Is there any method to modify some mkspecs\XXX\YYY.prf to patch it?