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The cmake command will be printed near the top of the e3sm build log (located in $EXEROOT/e3sm.bldlog.*). If you copy this command (you do don't need (and probably don't want) to copy the output redirection stuff at the end), you can 'cd $EXEROOT/cmake-bld; paste cmake cmd' and you'll then be configuring E3SM just like case.build would. Be sure not to forget to source $case/.env_mach_specific.sh first so that your environment matches the CIME build environment.
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