Hello. Where might one find the 'm', 'rt', and 'dl' C libraries?

the stuff in librt I think is in libc now and librt just 'forwards' (not sure that's the actual term) the symbols for things still linked against librt

libm should be usr/src/lib/libm

libdl is for reasons in usr/src/cmd/sgs/libld and not under usr/src/lib like you might first expect

docs.oracle.com/cd/E88353_01/html/E37842/librt-3lib.html Here is something that turned up (and I would imagine is relevant) about the legacy libraries being filters on libc.so. A dependency on a build is failing over those three libraries. Although, I grepped over /usr and there are plenty of occurrences of '-lm' and '-lrt' being passed as

arguments in multiple libraries, ditto with 'ldl'

The build recognizes the legacy libraries / filters but lists them as missing dependencies

I'll note that down. Thanks for the paths