D6631: Fix compilation with strict libc (such as musl)

[Michael Pyne]

mpyne added a comment.


  In https://phabricator.kde.org/D6631#126937, @bcooksley wrote:
  
  > Sorry, looks like it's still unhappy (another different error). This time it's complaining about gettimeofday()
  >  According to https://github.com/kinetiknz/cubeb/issues/6 defining XOPEN_SOURCE will sort this, but i'm not sure if musl is okay with that?
  
  
  musl is fine with `XOPEN_SOURCE` as long as it's defined properly.  It implies `_POSIX_C_SOURCE` in the FreeBSD headers anyways, though musl amusingly doesn't care at all for `gettimeofday`.  musl *did* care for signals-related functions, but it defines those under `_XOPEN_SOURCE` as well (see https://anonscm.debian.org/cgit/collab-maint/musl.git/tree/include/signal.h).  I'll take a look.

REPOSITORY
  R106 KSysguard

REVISION DETAIL
  https://phabricator.kde.org/D6631

To: mpyne, #plasma, mart
Cc: bcooksley, plasma-devel, ZrenBot, progwolff, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, mart, lukas
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