upstream #298

Manually merged

jwinterm merged 14 commits from :upstream into master

wowario commented

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wowario added 14 commits

1b7b438337

performance_tests: some windows fixes

Too many iterations cause std::bad_alloc for the timings vector,
and the micro prefix displays as some other character, so use u.

Reported by iDunk

1b9226ecfb

Made ccache optional (opt out) and tidied up the FindCcache.cmake

bcd71a5af9

Update copyright year to 2020

Update copyright year to 2020

121cdd5012

remove double includes

57e60e87bd

db_lmdb: test for mmap support at init time

It'll make it clearer when a DB init failure is due to being
on a filesystem which does not support mmap

705a21aee1

simplewallet: add missing calls to on_command

It resets the inactivity time

e537161b65

keccak: remove aligned check

Some tools report the alignment check as UB, which seems a bit
dubious, but since the performance difference between the two
versions is minimal, I'll go with the safe version

365a9ecacd

testdb: add override in a couple places where it's missing

ac3c9e9dc7

daemon: complain if data dir resides on FAT32 volume (Windows)

6a829c77e1

cmake: insert CMAKE_CURRENT_SOURCE_DIR in CMAKE_MODULE_PATH

5b83ccbb2d

daemon: guard against rare 'difficulty drift' bug with checkpoints and recalculation

On startup, it checks against the difficulty checkpoints, and if any mismatch is found, recalculates all the blocks with wrong difficulties. Additionally, once a week it recalculates difficulties of blocks after the last difficulty checkpoint.

b532cd8109

update checkpoints

c1e94b21dd

add build status

35429bbb5d

bump up version

wowario requested review from jwinterm