[Csnd] build of source error

Hello all,

trying to build latest csound on BigSur
displays nearly this message:

ld error: -Llibsystem not found

of course it is not a csound problem but a system config fault!

i was forced to delete and reinstall macports!

xcode is at the last version, and command line tools
are installed too.

any hint would help.

Many thanks in advance

Raoul MEGELAS
rmgls@orange.fr

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