Look at line 1972 of System.nsh:
!undef "${NAME}"If ${NAME} wasn't defined before calling the function, then compilation fails. Please change the code to the following:!ifdef "${NAME}"
!undef "${NAME}"
!endif4 posts
!undef "${NAME}"If ${NAME} wasn't defined before calling the function, then compilation fails. Please change the code to the following:!ifdef "${NAME}"
!undef "${NAME}"
!endif