sdl2: enable wayland support

Hi,

Proposing this diff which adds wayland support to sdl2. It adds a
couple of dependencies as expected. I can so far only test that it
still works in X11 as before. Using wayland for this stumbles over
libinput limitations with muxing multiple device which my current
machine sadly depends on...

Is someone in a better position to test sdl2 applications in
wayland/sway etc? Does it make sense to enable it now in sdl2?

Index: Makefile
===================================================================
RCS file: /cvs/ports/devel/sdl2/Makefile,v
diff -u -p -r1.61 Makefile
--- Makefile 3 Nov 2024 13:20:10 -0000 1.61
+++ Makefile 3 Nov 2024 18:34:03 -0000
@@ -3,6 +3,8 @@ COMMENT= cross-platform multimedia libra
V= 2.30.9
DISTNAME= SDL2-${V}
PKGNAME= sdl2-${V}
+REVISION= 0
+
CATEGORIES= devel
SITES= https://www.libsdl.org/release/

@@ -17,13 +19,18 @@ DEBUG_PACKAGES= ${BUILD_PACKAGES}
# zlib
PERMIT_PACKAGE= Yes

-WANTLIB+= X11 Xcursor Xext Xfixes Xi Xrandr Xrender Xss iconv m pthread
-WANTLIB+= samplerate sndio usbhid xcb
+WANTLIB+= X11 Xcursor Xext Xfixes Xi Xrandr Xrender Xss epoll-shim ffi
+WANTLIB+= wayland-client wayland-cursor wayland-egl iconv m pthread
+WANTLIB+= samplerate sndio usbhid xcb xkbcommon
# GL library is dlopen'd
WANTLIB+= GL

LIB_DEPENDS= audio/libsamplerate \
- converters/libiconv
+ converters/libiconv \
+ devel/epoll-shim \
+ devel/libffi \
+ wayland/wayland \
+ x11/xkbcommon

USE_GMAKE= Yes
SEPARATE_BUILD= Yes
@@ -42,7 +49,6 @@ CONFIGURE_ARGS+= --disable-alsa \
--disable-pipewire \
--disable-pulseaudio \
--disable-sndio-shared \
- --disable-video-wayland \
--disable-video-wayland-qt-touch \
--disable-wayland-shared \
--disable-x11-shared