I'm compiling a library in qt and during compiling it I've faced with this error(on windows 7 x64 with qt designer) :
cannot open file “m.lib”
when I searched around I've found in here and here that I must pass the -lm flag to compiler, but I don't know how to pass it?!
I've left it in qmake flags but it says that it's unknown!
I'm using qt-designer with qt5.2 and msv2012 compiler.