games/retroarch: fix build on all versions and enable on non-x86

Do not depend on svgalib where svgalib is not supported.
Do not enable code using memfd_create() where that is not supported.

PR:		274647

games/retroarch/Makefile

@@ -35,8 +35,13 @@ LDFLAGS_i386=	-Wl,-znotext
 DOCSDIR=	${PREFIX}/share/doc/${PORTNAME:tl}
 SUB_FILES=	pkg-message
 
-OPTIONS_DEFINE=	CACA FFMPEG OSS JACK PULSEAUDIO ALSA SDL OPENGL OPENAL V4L FREETYPE WAYLAND UDEV QT X11 DOCS
-OPTIONS_DEFAULT=FFMPEG OSS SDL OPENGL OPENAL V4L FREETYPE WAYLAND UDEV QT X11
+OPTIONS_DEFINE=	CACA FFMPEG OSS JACK PULSEAUDIO ALSA SDL OPENGL OPENAL V4L FREETYPE UDEV QT X11 DOCS
+OPTIONS_DEFINE_amd64=	WAYLAND	# svgalib is x86 only
+OPTIONS_DEFINE_i386=	WAYLAND
+OPTIONS_DEFAULT=FFMPEG OSS SDL OPENGL OPENAL V4L FREETYPE UDEV QT X11
+OPTIONS_DEFAULT_amd64=	WAYLAND
+OPTIONS_DEFAULT_i386=	WAYLAND
+OPTIONS_EXCLUDE_FreeBSD_12=	WAYLAND	# requires memfd_create()
 FFMPEG_DESC=	On-the-fly recording of gameplay with libavcodec
 WAYLAND_DESC=	Wayland display support
 UDEV_DESC=	udev device hotplug support

games/retroarch/files/patch-gfx_common_wayland__common.c

@@ -0,0 +1,11 @@
+--- gfx/common/wayland_common.c.orig	2023-11-06 19:16:56 UTC
++++ gfx/common/wayland_common.c
+@@ -419,7 +419,7 @@ bool gfx_ctx_wl_get_metrics_common(void *data,
+ static int create_shm_file(off_t size)
+ {
+    int fd, ret;
+-   if ((fd = syscall(SYS_memfd_create, SPLASH_SHM_NAME,
++   if ((fd = memfd_create(SPLASH_SHM_NAME,
+                MFD_CLOEXEC | MFD_ALLOW_SEALING)) >= 0)
+    {
+       fcntl(fd, F_ADD_SEALS, F_SEAL_SHRINK);

games/retroarch/files/patch-input_input__keymaps.c

@@ -0,0 +1,20 @@
+--- input/input_keymaps.c.orig	2023-11-06 19:58:13 UTC
++++ input/input_keymaps.c
+@@ -54,7 +54,7 @@
+ #include "SDL.h"
+ #endif
+
+-#if defined(__linux__) || defined(HAVE_WAYLAND)
++#if defined(__linux__) || defined(HAVE_WAYLAND) || defined(__FreeBSD__)
+ #if defined(__linux__)
+ #include <linux/input.h>
+ #include <linux/kd.h>
+@@ -1130,7 +1130,7 @@ const struct rarch_key_map rarch_key_map_x11[] = {
+ };
+ #endif
+
+-#if defined(__linux__) || defined(HAVE_WAYLAND)
++#if defined(__linux__) || defined(HAVE_WAYLAND) || defined(__FreeBSD__)
+ /* Note: Only one input can be mapped to each
+  * RETROK_* key. If several physical inputs
+  * correspond to the same key, these inputs