games/libretro-beetle_saturn: New port

Standalone port of Mednafen Saturn to libretro.

PR:		256776

games/Makefile

@@ -486,6 +486,7 @@
     SUBDIR += libretro-beetle_pce_fast
     SUBDIR += libretro-beetle_pcfx
     SUBDIR += libretro-beetle_psx
+    SUBDIR += libretro-beetle_saturn
     SUBDIR += libretro-beetle_supergrafx
     SUBDIR += libretro-beetle_vb
     SUBDIR += libretro-beetle_wswan

games/libretro-beetle_saturn/Makefile

@@ -0,0 +1,26 @@
+PORTNAME=	libretro-beetle_saturn
+PORTVERSION=	0.20210622
+CATEGORIES=	games
+
+MAINTAINER=	menelkir@itroll.org
+COMMENT=	Standalone port of Mednafen Saturn to libretro
+
+LICENSE=	GPLv2
+
+USES=		compiler:c++11-lib gmake
+USE_LDCONFIG=	yes
+
+USE_GITHUB=	yes
+GH_ACCOUNT=	libretro
+GH_PROJECT=	beetle-saturn-libretro
+GH_TAGNAME=	ee5b214
+
+CFLAGS+=	-fcommon
+
+PLIST_FILES=	lib/libretro/mednafen_saturn_libretro.so
+
+do-install:
+	${MKDIR} ${STAGEDIR}/${PREFIX}/lib/libretro;
+	${INSTALL_LIB} ${WRKSRC}/mednafen_saturn_libretro.so ${STAGEDIR}/${PREFIX}/lib/libretro;
+
+.include <bsd.port.mk>

games/libretro-beetle_saturn/distinfo

@@ -0,0 +1,3 @@
+TIMESTAMP = 1624369815
+SHA256 (libretro-beetle-saturn-libretro-0.20210622-ee5b214_GH0.tar.gz) = b4a2797fa0141db37f46df824cc1090f045a51fb9a78e6d03ce4efdea59207bf
+SIZE (libretro-beetle-saturn-libretro-0.20210622-ee5b214_GH0.tar.gz) = 1114744

games/libretro-beetle_saturn/files/patch-libretro-common_rthreads_rthreads.c

@@ -0,0 +1,11 @@
+--- libretro-common/rthreads/rthreads.c.orig	2021-06-22 13:57:12 UTC
++++ libretro-common/rthreads/rthreads.c
+@@ -64,6 +64,8 @@
+ #include <mach/mach.h>
+ #endif
+ 
++#include <sys/time.h>
++
+ struct thread_data
+ {
+    void (*func)(void*);

games/libretro-beetle_saturn/pkg-descr

@@ -0,0 +1,3 @@
+Standalone port of Mednafen Sega Saturn to libretro.
+
+WWW: https://github.com/libretro/beetle-saturn-libretro