Index: head/audio/mixxx21/Makefile
===================================================================
--- head/audio/mixxx21/Makefile
+++ head/audio/mixxx21/Makefile
@@ -4,7 +4,7 @@
 PORTNAME=	mixxx
 DISTVERSIONPREFIX=	release-
 DISTVERSION=	2.1.8
-PORTREVISION=	3
+PORTREVISION=	4
 CATEGORIES=	audio
 PKGNAMESUFFIX=  21
 
@@ -15,7 +15,6 @@
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 BROKEN_aarch64=		fails to compile: Exception("invalid machine type")
-BROKEN_powerpc64=	fails to configure: unmet dependencies: Could not find libprotobuf, libchromaprint, libmp4, and libwavpack
 
 LIB_DEPENDS=	libchromaprint.so:audio/chromaprint \
 		libFLAC.so:audio/flac \
@@ -47,7 +46,7 @@
 CONFLICTS=	mixxx20* mixxx
 
 MAKE_ARGS=	qtdir="${PREFIX}" install_root="${PREFIX}" \
-		build=release optimize=native ${GUI} battery=0 vamp=1 modplug=1
+		build=release optimize=off ${GUI} battery=0 vamp=1 modplug=1
 LATE_INSTALL_ARGS=	--install-sandbox=${STAGEDIR}
 
 GUI=		qt5=1
Index: head/audio/mixxx21/files/patch-plugins_soundsourcem4a_soundsourcem4a.h
===================================================================
--- head/audio/mixxx21/files/patch-plugins_soundsourcem4a_soundsourcem4a.h
+++ head/audio/mixxx21/files/patch-plugins_soundsourcem4a_soundsourcem4a.h
@@ -0,0 +1,11 @@
+--- plugins/soundsourcem4a/soundsourcem4a.h.orig	2019-07-19 22:36:09 UTC
++++ plugins/soundsourcem4a/soundsourcem4a.h
+@@ -5,6 +5,8 @@
+ 
+ #include "util/readaheadsamplebuffer.h"
+ 
++#include <sys/types.h>
++
+ #ifdef __MP4V2__
+ #include <mp4v2/mp4v2.h>
+ #else