if(${IOS}) set(headers ${headers} ios_src/Helpers/UIAnimation/Easing ) set(currsources ios_src/Helpers/UIAnimation/Easing/BackCurve.h ios_src/Helpers/UIAnimation/Easing/CircleCurve.h ios_src/Helpers/UIAnimation/Easing/IEasingCurve.h ) set(sources ${sources} ${currsources}) source_group(\\ios_src\\Helpers\\UIAnimation\\Easing FILES ${currsources}) endif(${IOS})