Passing the -lm flag to qt compiler to get rid of "cannot open file “m.lib”

Question

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.

Answer 1

http://doc.qt.io/qt-5/qmake-project-files.html#declaring-other-libraries

You probably need to tell it where the library is, too.

LIBS += -L/path/to/my/lib -lm

Hope that helps.