Per https://bodhi.fedoraproject.org/updates/FEDORA-2022-dc47174c36: This update fixes a failure to build with source with bash 5.2. Bash's `patsub_replacement` feature makes ampersand a special character when doing variable substitution, which was not previously the case. This update instructs bash to turn off the new behavior. The patch itself is adapted from https://src.fedoraproject.org/rpms/cvc4/blob/f7c24c6ad72a8812d244313f13032fa23d393315/f/cvc4-bash-patsub-replacement.patch. --- a/src/expr/mkexpr 2020-06-19 10:59:27.000000000 -0600 +++ b/src/expr/mkexpr 2022-10-11 14:28:31.120453409 -0600 @@ -16,6 +16,7 @@ # copyright=2010-2014 +shopt -u patsub_replacement filename=`basename "$1" | sed 's,_template,,'` --- a/src/expr/mkkind 2020-06-19 10:59:27.000000000 -0600 +++ b/src/expr/mkkind 2022-10-11 14:34:17.008996126 -0600 @@ -15,6 +15,7 @@ # copyright=2010-2014 +shopt -u patsub_replacement filename=`basename "$1" | sed 's,_template,,'` --- a/src/expr/mkmetakind 2020-06-19 10:59:27.000000000 -0600 +++ b/src/expr/mkmetakind 2022-10-11 14:34:32.248020036 -0600 @@ -18,6 +18,7 @@ # copyright=2010-2014 +shopt -u patsub_replacement cat <