Index: Makefile
===================================================================
--- Makefile	(revision 537148)
+++ Makefile	(working copy)
@@ -30,7 +30,7 @@
 
 LICENSE=	MIT
 
-ONLY_FOR_ARCHS=	amd64 i386
+ONLY_FOR_ARCHS=	amd64 i386 powerpc64
 ONLY_FOR_ARCHS_REASON=	Limited scope: no old drivers and no software rendering. \
 			See also https://mesamatrix.net/
 BROKEN_DragonFly=	requires making Vulkan support conditional
@@ -48,9 +48,7 @@
 BINARY_ALIAS=	llvm-config=llvm-config${LLVM_DEFAULT} python=${PYTHON_CMD}
 SHEBANG_FILES=	src/vulkan/overlay-layer/${PORTNAME}-overlay-control.py
 PLATFORMS=	${PORT_OPTIONS:MX11:tl} ${PORT_OPTIONS:MWAYLAND:tl} drm surfaceless
-MESON_ARGS=	-Ddri-drivers=i965 \
-		-Dgallium-drivers=iris,r600,radeonsi \
-		-Dgallium-omx=disabled \
+MESON_ARGS=	-Dgallium-omx=disabled \
 		-Dgallium-opencl=disabled \
 		-Dgallium-va=false \
 		-Dgallium-vdpau=false \
@@ -72,6 +70,7 @@
 
 OPTIONS_DEFINE=		LIBUNWIND VAAPI VDPAU WAYLAND X11 ZSTD
 OPTIONS_DEFAULT=	LIBUNWIND VAAPI VDPAU WAYLAND X11 ZSTD
+OPTIONS_EXCLUDE_powerpc64=	LIBUNWIND
 OPTIONS_SUB=		yes
 
 LIBUNWIND_DESC=		Use libunwind for stacktraces
@@ -95,6 +94,19 @@
 ZSTD_LIB_DEPENDS=	libzstd.so:archivers/zstd
 ZSTD_MESON_TRUE=	zstd
 
+.include <bsd.port.options.mk>
+
+.if ${ARCH} == powerpc64
+MESON_ARGS+=	-Ddri-drivers= \
+		-Dgallium-drivers=r600,radeonsi \
+		-Dvulkan-drivers=amd
+PLIST_SUB+=	PPC64="@comment "
+.else
+MESON_ARGS+=	-Ddri-drivers=i965 \
+		-Dgallium-drivers=iris,r600,radeonsi
+PLIST_SUB+=	PPC64=""
+.endif
+
 post-patch:
 # Extract (snapshot) version from the port instead of empty string
 	@${REINPLACE_CMD} '/MESA_GIT_SHA1/s/""/" (git-${DISTVERSIONSUFFIX:C/.*-g//})"/' \
Index: pkg-plist
===================================================================
--- pkg-plist	(revision 537148)
+++ pkg-plist	(working copy)
@@ -26,8 +26,8 @@
 @comment include/KHR/khrplatform.h
 @comment include/gbm.h
 @comment include/vulkan/vulkan_intel.h
-lib/dri%%PKGNAMESUFFIX%%/i965_dri.so
-lib/dri%%PKGNAMESUFFIX%%/iris_dri.so
+%%PPC64%%lib/dri%%PKGNAMESUFFIX%%/i965_dri.so
+%%PPC64%%lib/dri%%PKGNAMESUFFIX%%/iris_dri.so
 lib/dri%%PKGNAMESUFFIX%%/r600_dri.so
 lib/dri%%PKGNAMESUFFIX%%/radeonsi_dri.so
 %%VAAPI%%lib/dri%%PKGNAMESUFFIX%%/r600_drv_video.so
@@ -52,7 +52,7 @@
 @comment lib/libglapi%%PKGNAMESUFFIX%%.so
 lib/libglapi%%PKGNAMESUFFIX%%.so.0
 lib/libglapi%%PKGNAMESUFFIX%%.so.0.0.0
-lib/libvulkan_intel%%PKGNAMESUFFIX%%.so
+%%PPC64%%lib/libvulkan_intel%%PKGNAMESUFFIX%%.so
 lib/libvulkan_radeon%%PKGNAMESUFFIX%%.so
 %%VDPAU%%lib/vdpau%%PKGNAMESUFFIX%%/libvdpau_r600.so
 %%VDPAU%%lib/vdpau%%PKGNAMESUFFIX%%/libvdpau_r600.so.1