WITH_META_MODE vs. delete-old and delete-old-libs

I've been using the following script to run my make commands for amd64 builds (as an example):

> # more ~/sys_build_scripts.amd64-host/make_amd64_nodebug_clang_bootstrap-amd64-host.sh 
> kldload -n filemon && \
> script ~/sys_typescripts/typescript_make_amd64_nodebug_clang_bootstrap-amd64-host-$(date +%Y-%m-%d:%H:%M:%S) \
> env __MAKE_CONF="/root/src.configs/make.conf" SRC_ENV_CONF="/root/src.configs/src.conf.amd64-clang-bootstrap.amd64-host" \
> WITH_META_MODE=yes \
> MAKEOBJDIRPREFIX="/usr/obj/clang/amd64.amd64" \
> make $*

When the WITH_META_MODE=yes is present (as shown) delete-old and delete-old-libs command line arguments to the script do not display the prompts but the process does wait for the y/n answers. I've actually used top in another window to see what it is waiting for an answer to. After I've answered all the questions then the list of prompts finally is shown all at once.

Without WITH_META_MODE= each prompt text is displayed before it waits for the answer to that prompt.


This sort of fits in with my earlier questions about make usage that is in the likes of, say, mergemaster and if/where care about WITH_META_MODE=yes use vs. disuse might be important for such. For example: Should "env WITH_META_MODE=yes" be used with mergemaster if it was used with buildworld, buildkernel, installkernel, and installworld?

===
Mark Millard
markmi at dsl-only.net