diff --git a/graphics/sharpconstruct/Makefile b/graphics/sharpconstruct/Makefile
index 7235e4ad6044..7c95470d9c36 100644
--- a/graphics/sharpconstruct/Makefile
+++ b/graphics/sharpconstruct/Makefile
@@ -1,37 +1,47 @@
 PORTNAME=	sharpconstruct
 PORTVERSION=	0.11
 PORTREVISION=	17
 CATEGORIES=	graphics
 MASTER_SITES=	SF/sharp3d/SharpConstruct/${PORTVERSION}
 
 MAINTAINER=	amdmi3@FreeBSD.org
 COMMENT=	3D modeller for organic shapes
 
 LICENSE=	GPLv2+
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 LIB_DEPENDS=	libgtkglextmm-x11-1.2.so:x11-toolkits/gtkglextmm \
 		libglademm-2.4.so:devel/libglademm24
 
-ONLY_FOR_ARCHS=	i386 amd64
+ONLY_FOR_ARCHS=	amd64 i386 powerpc64le
 ONLY_FOR_ARCHS_REASON=	uses SSE instructions
 
-USES=		compiler:c++11-lang gl tar:bzip2 gmake pkgconfig
+USES=		gl tar:bzip2 gmake pkgconfig
 USE_CXXSTD=	c++11
 GNU_CONFIGURE=	yes
 USE_GL=		gl glu
 
+CXXFLAGS_i386=	-msse
 PLIST_FILES=	bin/${PORTNAME} \
 		man/man1/${PORTNAME}.1.gz
 PORTDATA=	*
 
+.include <bsd.port.options.mk>
+
+.if ${ARCH} == powerpc64le
+CXXFLAGS+=	-DNO_WARN_X86_INTRINSICS
+USES+=		compiler:gcc-c++11-lib
+.else
+USES+=		compiler:c++11-lang
+.endif
+
 post-patch:
 	@${REINPLACE_CMD} -e 's|malloc.h|stdlib.h|' ${WRKSRC}/include/Align.hh
 	@${REINPLACE_CMD} -e 's|"/sharpconstruct|"|' ${WRKSRC}/src/MainWindow.cc
 	@${REINPLACE_CMD} -e 's|/usr/share/sharpconstruct|${DATADIR}|' ${WRKSRC}/src/MainWindow.cc
 	@${REINPLACE_CMD} -e '/FileDialog/,/}/ d' ${WRKSRC}/src/MainWindow.cc
 	@${REINPLACE_CMD} -e 's|memalign(b,c)|malloc(c)|' ${WRKSRC}/include/Align.hh
 	@${FIND} ${WRKSRC} -name Makefile.in -print0 | ${XARGS} -0 \
 		${REINPLACE_CMD} -e '/^DEFS / s|$$| -DDATADIR=\\"${DATADIR}\\"|'
 
 .include <bsd.port.mk>
diff --git a/graphics/sharpconstruct/files/patch-src_Makefile.in b/graphics/sharpconstruct/files/patch-src_Makefile.in
new file mode 100644
index 000000000000..f89940df2bc5
--- /dev/null
+++ b/graphics/sharpconstruct/files/patch-src_Makefile.in
@@ -0,0 +1,11 @@
+--- src/Makefile.in.orig	2021-12-02 18:50:44 UTC
++++ src/Makefile.in
+@@ -172,7 +172,7 @@ sharedstatedir = ${prefix}/com
+ sysconfdir = ${prefix}/etc
+ target_alias = 
+ INCLUDES = -I../include
+-AM_CXXFLAGS = -Wall -msse $(libglademm_CFLAGS) $(gtkglextmm_CFLAGS) $(X_CFLAGS) $(BINRELOC_CFLAGS)
++AM_CXXFLAGS = -Wall $(libglademm_CFLAGS) $(gtkglextmm_CFLAGS) $(X_CFLAGS) $(BINRELOC_CFLAGS)
+ LDADD = $(libglademm_LIBS) $(gtkglextmm_LIBS) -lGL -lGLU $(X_LIBS)
+ sharpconstruct_SOURCES = \
+ 	ArcBall.cc \