colvars
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sh: 15: hash: Illegal option -t
when i Patch Gromacs with Colvars (sh ./colvars-master/update-colvars-code.sh ./gromacs-2020.6),there is an error:./colvars-master/update-colvars-code.sh: 15: hash: Illegal option -t. May I ask what the reason is. How to solve this problem?