generalize conditional compile for update_pmtu#9

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dirkcgrunwald wants to merge 2 commits intoPrinzOwO:masterfrom dirkcgrunwald:generic_update_pmtu

+18-2

Commits on Jul 1, 2020

generalize conditional compile for update_pmtu
dirkcgrunwald
committed

Commits on Jul 29, 2020

improve ubuntu kernel detection
dirkcgrunwald
committed