diff --git a/math/matrix/Makefile b/math/matrix/Makefile
index 85f2ae3495c8..5b6b0a8c41a8 100644
--- a/math/matrix/Makefile
+++ b/math/matrix/Makefile
@@ -20,4 +20,10 @@ USE_ZIP=	yes
 INSTALLS_SHLIB=	yes
 PLIST_SUB=	LIBVERSION=1
 
-.include <bsd.port.mk>
+.include <bsd.port.pre.mk>
+
+.if ${ARCH} == "amd64"
+BROKEN=		"Does not build on amd64 (shared libraries must be compiled with -fPIC)"
+.endif
+
+.include <bsd.port.post.mk>
diff --git a/math/octave-devel/Makefile b/math/octave-devel/Makefile
index 26add37ebe1f..d801559c0391 100644
--- a/math/octave-devel/Makefile
+++ b/math/octave-devel/Makefile
@@ -23,6 +23,10 @@ USE_BZIP2=	yes
 
 .include <bsd.port.pre.mk>
 
+.if ${ARCH} == "amd64"
+BROKEN=		"Does not build on amd64 (Shared libraries must be compiled with -fPIC)"
+.endif
+
 .if ${PORTOBJFORMAT} == "elf"
 GNU_HOST=	${ARCH}-portbld-freebsd${OSREL}
 .else
diff --git a/math/octave/Makefile b/math/octave/Makefile
index 26add37ebe1f..d801559c0391 100644
--- a/math/octave/Makefile
+++ b/math/octave/Makefile
@@ -23,6 +23,10 @@ USE_BZIP2=	yes
 
 .include <bsd.port.pre.mk>
 
+.if ${ARCH} == "amd64"
+BROKEN=		"Does not build on amd64 (Shared libraries must be compiled with -fPIC)"
+.endif
+
 .if ${PORTOBJFORMAT} == "elf"
 GNU_HOST=	${ARCH}-portbld-freebsd${OSREL}
 .else
diff --git a/multimedia/mpeg4ip/Makefile b/multimedia/mpeg4ip/Makefile
index 839bb7bc88c9..133e1a6aa251 100644
--- a/multimedia/mpeg4ip/Makefile
+++ b/multimedia/mpeg4ip/Makefile
@@ -91,6 +91,10 @@ post-extract:
 
 .include <bsd.port.pre.mk>
 
+.if ${ARCH} == "amd64"
+BROKEN=		"Does not build on amd64 (shared libraries must be compiled with -fPIC)"
+.endif
+
 post-patch:
 	@${FIND} ${WRKSRC} -type f -name "*.[ch]" -or -name "*.cpp" | ${XARGS} -n 10 \
 		${REINPLACE_CMD} -e \