Index: head/games/Makefile
===================================================================
--- head/games/Makefile
+++ head/games/Makefile
@@ -530,6 +530,7 @@
     SUBDIR += libretro-vbanext
     SUBDIR += libretro-vecx
     SUBDIR += libretro-virtualjaguar
+    SUBDIR += libretro-yabause
     SUBDIR += libshhcards
     SUBDIR += libtmcg
     SUBDIR += lightsoff
Index: head/games/libretro-yabause/Makefile
===================================================================
--- head/games/libretro-yabause/Makefile
+++ head/games/libretro-yabause/Makefile
@@ -0,0 +1,35 @@
+# $FreeBSD$
+
+PORTNAME=	libretro-yabause
+PORTVERSION=	0.20200504
+CATEGORIES=	games
+
+MAINTAINER=	menelkir@itroll.org
+COMMENT=	Saturn emulator for libretro
+
+LICENSE=	GPLv2
+
+USES=		compiler:c++11-lib gmake
+USE_LDCONFIG=	yes
+
+USE_GITHUB=	yes
+GH_ACCOUNT=	libretro
+GH_PROJECT=	yabause
+GH_TAGNAME=	9be109f
+
+PLIST_FILES=	lib/libretro/yabause_libretro.so
+
+MAKEFILE=	Makefile.freebsd
+
+.include <bsd.port.pre.mk>
+
+post-patch:
+.if ${ARCH} != "amd64"
+	@${REINPLACE_CMD} -e "s/HAVE_SSE = 1/HAVE_SSE = 0/" ${WRKSRC}/yabause/src/libretro/Makefile
+.endif
+
+do-install:
+	${MKDIR} ${STAGEDIR}/${PREFIX}/lib/libretro;
+	${INSTALL_LIB} ${WRKSRC}/yabause/src/libretro/yabause_libretro.so ${STAGEDIR}/${PREFIX}/lib/libretro;
+
+.include <bsd.port.post.mk>
Index: head/games/libretro-yabause/distinfo
===================================================================
--- head/games/libretro-yabause/distinfo
+++ head/games/libretro-yabause/distinfo
@@ -0,0 +1,3 @@
+TIMESTAMP = 1588720664
+SHA256 (libretro-yabause-0.20200504-9be109f_GH0.tar.gz) = 01ced72767c1246d6b4236e7964b26f35d56e373491229bcdbafc6d00cc5ced3
+SIZE (libretro-yabause-0.20200504-9be109f_GH0.tar.gz) = 18097044
Index: head/games/libretro-yabause/files/patch-Makefile.freebsd
===================================================================
--- head/games/libretro-yabause/files/patch-Makefile.freebsd
+++ head/games/libretro-yabause/files/patch-Makefile.freebsd
@@ -0,0 +1,5 @@
+--- Makefile.freebsd.orig	2020-05-02 13:46:15 UTC
++++ Makefile.freebsd
+@@ -0,0 +1,2 @@
++all:
++	cd yabause/src/libretro && ${MAKE} 
Index: head/games/libretro-yabause/files/patch-yabause_src_libretro_libretro-common_rthreads_rthreads.c
===================================================================
--- head/games/libretro-yabause/files/patch-yabause_src_libretro_libretro-common_rthreads_rthreads.c
+++ head/games/libretro-yabause/files/patch-yabause_src_libretro_libretro-common_rthreads_rthreads.c
@@ -0,0 +1,11 @@
+--- yabause/src/libretro/libretro-common/rthreads/rthreads.c.orig	2020-05-02 13:49:27 UTC
++++ yabause/src/libretro/libretro-common/rthreads/rthreads.c
+@@ -67,6 +67,8 @@
+ #include <mach/mach.h>
+ #endif
+ 
++#include <sys/time.h>
++
+ struct thread_data
+ {
+    void (*func)(void*);
Index: head/games/libretro-yabause/pkg-descr
===================================================================
--- head/games/libretro-yabause/pkg-descr
+++ head/games/libretro-yabause/pkg-descr
@@ -0,0 +1,3 @@
+Saturn Emulator for libretro.
+
+WWW: https://github.com/libretro/yabause