multimedia/arcan0.7.1_1

multimedia/arcan: track Xwayland dependency

src/wayland/xwlwm/xwlwm.c:
		char* argv[] = {
			"Xwayland", "-rootless",
			"-displayfd", NULL,
			"-wm", NULL,
			NULL, NULL};

multimedia/arcan: fix a warning on FreeBSD < 12

src/frameserver/util/anet_keystore_naive.c:231:10: warning: implicit declaration of function 'getline' is invalid in C99 [-Wimplicit-function-declaration]
                while (getline(&inbuf, &len, fpek) != -1){
                       ^
src/frameserver/util/anet_keystore_naive.c:427:15: warning: implicit declaration of function 'getline' is invalid in C99 [-Wimplicit-function-declaration]
        while ((nr = getline(&inbuf, &len, fpek)) != -1){
                     ^

multimedia/arcan: respect PREFIX != /usr/local

multimedia/arcan: unbreak on FreeBSD >= 12.1 i386 (LLD by default)

ld: error: cannot preempt symbol: alcOpenDevice
>>> defined in /usr/local/lib/libopenal.so
>>> referenced by arcan_audio.c
>>>               CMakeFiles/arcan.dir/engine/arcan_audio.c.o:(arcan_audio_setup)

Reported by:	pkg-fallout

multimedia/arcan: unbreak on GCC architectures

cc1: error: unrecognized command line option "-Wno-atomic-alignment"
cc1: error: unrecognized command line option "-std=gnu11"

multimedia/arcan: add new port

Arcan is a powerful development framework for creating virtually anything from
user interfaces for specialized embedded applications all the way to full-blown
standalone desktop environments.

At its heart lies a robust and portable multimedia engine, with a well-tested
and well-documented Lua scripting interface. The development emphasizes
security, debuggability and performance -- guided by a principle of least
surprise in terms of API design.

WWW: https://arcan-fe.com/