More compiler warnings and use "external".

Put all external code under "external".
We can't use too many warnings though since there's a lot of code we
don't control.
This commit is contained in:
Erik Ogenvik 2019-09-22 01:23:55 +02:00
parent 3cca2e3396
commit 271cf8024f
252 changed files with 243 additions and 692 deletions

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