wlroots/xwayland/selection
Simon Ser 842093bb84 Define _POSIX_C_SOURCE globally
Stop trying to maintain a per-file _POSIX_C_SOURCE. Instead,
require POSIX.1-2008 globally. A lot of core source files depend
on that already.

Some care must be taken on a few select files where we need a bit
more than POSIX. Some files need XSI extensions (_XOPEN_SOURCE) and
some files need BSD extensions (_DEFAULT_SOURCE). In both cases,
these feature test macros imply _POSIX_C_SOURCE. Make sure to not
define both these macros and _POSIX_C_SOURCE explicitly to avoid
POSIX requirement conflicts (e.g. _POSIX_C_SOURCE says POSIX.1-2001
but _XOPEN_SOURCE says POSIX.1-2008).

Additionally, there is one special case in render/vulkan/vulkan.c.
That file needs major()/minor(), and these are system-specific.
On FreeBSD, _POSIX_C_SOURCE hides system-specific symbols so we need
to make sure it's not defined for this file. On Linux, we can
explicitly include <sys/sysmacros.h> and ensure that apart from
symbols defined there the file only uses POSIX toys.
2024-02-15 15:41:12 +01:00
..
dnd.c gtk-primary-selection: drop support 2021-04-08 09:50:18 +02:00
incoming.c Define _POSIX_C_SOURCE globally 2024-02-15 15:41:12 +01:00
outgoing.c treewide: Migrate from sizeof(struct) to sizeof(*pointer) where practical 2023-10-03 01:51:07 -04:00
selection.c Define _POSIX_C_SOURCE globally 2024-02-15 15:41:12 +01:00