Using gromacs 2022.4
when using IFNDEF_init.top does not produce constrained files, while simply removing them by deleting all “#ifdef FLEXIBLE”, “#else”, “#endif” working_init.top runs correctly.
May I ask if i’m doing something wrong with IFDEF, or is gromacs does not read IFDEF correctly ?
IFNDEF_init.top (2.1 KB)
working_init.top (2.1 KB)