Index: head/audio/Makefile
===================================================================
--- head/audio/Makefile
+++ head/audio/Makefile
@@ -698,6 +698,7 @@
     SUBDIR += rosegarden
     SUBDIR += rplay
     SUBDIR += rsynth
+    SUBDIR += rtaudio
     SUBDIR += rtmidi
     SUBDIR += rubberband
     SUBDIR += ruby-smf
Index: head/audio/rtaudio/Makefile
===================================================================
--- head/audio/rtaudio/Makefile
+++ head/audio/rtaudio/Makefile
@@ -0,0 +1,20 @@
+# $FreeBSD$
+
+PORTNAME=	rtaudio
+DISTVERSIONPREFIX=	v
+DISTVERSION=	5.0.0
+CATEGORIES=	audio
+
+MAINTAINER=	yuri@FreeBSD.org
+COMMENT=	C++ classes that provide a common API for realtime audio input/output
+
+LICENSE=	MIT
+
+USES=		autoreconf libtool pkgconfig
+USE_GITHUB=	yes
+GH_ACCOUNT=	thestk
+GNU_CONFIGURE=	yes
+USE_LDCONFIG=	yes
+INSTALL_TARGET=	install-strip
+
+.include <bsd.port.mk>
Index: head/audio/rtaudio/distinfo
===================================================================
--- head/audio/rtaudio/distinfo
+++ head/audio/rtaudio/distinfo
@@ -0,0 +1,3 @@
+TIMESTAMP = 1509775215
+SHA256 (thestk-rtaudio-v5.0.0_GH0.tar.gz) = 14d1936c88585cacf081a896438f04f158c115c0fc9eec9364214040c4328376
+SIZE (thestk-rtaudio-v5.0.0_GH0.tar.gz) = 211279
Index: head/audio/rtaudio/files/patch-configure.ac
===================================================================
--- head/audio/rtaudio/files/patch-configure.ac
+++ head/audio/rtaudio/files/patch-configure.ac
@@ -0,0 +1,11 @@
+--- configure.ac.orig	2017-11-04 06:06:02 UTC
++++ configure.ac
+@@ -142,7 +142,7 @@ case $host in
+   AS_IF([test "$api" == ""], [
+     AC_MSG_RESULT(using OSS)
+     api="$api -D__LINUX_OSS__"
+-    LIBS="$LIBS -lossaudio"
++    LIBS="$LIBS"
+     AC_CHECK_LIB(pthread, pthread_create, , AC_MSG_ERROR(RtAudio requires the pthread library!))])
+   ;;
+ 
Index: head/audio/rtaudio/pkg-descr
===================================================================
--- head/audio/rtaudio/pkg-descr
+++ head/audio/rtaudio/pkg-descr
@@ -0,0 +1,6 @@
+A set of C++ classes that provide a common API for realtime audio input/output
+across Linux (native ALSA, JACK, PulseAudio and OSS), Macintosh OS X
+(CoreAudio and JACK), and Windows (DirectSound, ASIO and WASAPI) operating
+systems.
+
+WWW: https://github.com/thestk/rtaudio
Index: head/audio/rtaudio/pkg-plist
===================================================================
--- head/audio/rtaudio/pkg-plist
+++ head/audio/rtaudio/pkg-plist
@@ -0,0 +1,6 @@
+include/rtaudio/RtAudio.h
+lib/librtaudio.a
+lib/librtaudio.so
+lib/librtaudio.so.6
+lib/librtaudio.so.6.0.0
+libdata/pkgconfig/rtaudio.pc