another attempt at setting c++11 in cmake, this time seems to be working
another attempt at setting c++11 in cmake, this time seems to be working

martanoga/yacas,martanoga/yacas,tomaszkrysiuk/yacas,martanoga/yacas,tomaszkrysiuk/yacas,MateuszSnamina/yacas,MateuszSnamina/yacas,grzegorzmazur/yacas,MateuszSnamina/yacas,martanoga/yacas,tomaszkrysiuk/yacas,tomaszkrysiuk/yacas,qwert2003/yacas,grzegorzmazur/yacas,MateuszSnamina/yacas,MateuszSnamina/yacas,qwert2003/yacas,grzegorzmazur/yacas,qwert2003/yacas,grzegorzmazur/yacas,MateuszSnamina/yacas,qwert2003/yacas,MateuszSnamina/yacas,qwert2003/yacas,tomaszkrysiuk/yacas,tomaszkrysiuk/yacas,grzegorzmazur/yacas,martanoga/yacas,tomaszkrysiuk/yacas,martanoga/yacas,qwert2003/yacas,martanoga/yacas,grzegorzmazur/yacas,grzegorzmazur/yacas,qwert2003/yacas