diff --git a/devel/py-qt4-script/Makefile b/devel/py-qt4-script/Makefile
index 80d1ffdc5a7f..c35e87d00593 100644
--- a/devel/py-qt4-script/Makefile
+++ b/devel/py-qt4-script/Makefile
@@ -65,6 +65,10 @@ PLIST_SUB+=	SIP=""
 ARGS+=		--trace
 .endif
 
+.if ${OSVERSION} < 700000
+BROKEN=		does not compile on 6.X
+.endif
+
 do-configure:
 	cd ${WRKSRC} && ${SETENV} ${CONFIGURE_ENV}\
 		${PYTHON_CMD} configure.py ${ARGS}
diff --git a/devel/py-qt4-scripttools/Makefile b/devel/py-qt4-scripttools/Makefile
index c57d75e70f98..94001d4edfdb 100644
--- a/devel/py-qt4-scripttools/Makefile
+++ b/devel/py-qt4-scripttools/Makefile
@@ -66,6 +66,10 @@ PLIST_SUB+=	SIP=""
 ARGS+=		--trace
 .endif
 
+.if ${OSVERSION} < 700000
+BROKEN=		does not compile on 6.X
+.endif
+
 do-configure:
 	cd ${WRKSRC} && ${SETENV} ${CONFIGURE_ENV}\
 		${PYTHON_CMD} configure.py ${ARGS}
diff --git a/multimedia/py-qt4-phonon/Makefile b/multimedia/py-qt4-phonon/Makefile
index e02e657e26c9..da196fe4fbde 100644
--- a/multimedia/py-qt4-phonon/Makefile
+++ b/multimedia/py-qt4-phonon/Makefile
@@ -65,6 +65,10 @@ PLIST_SUB+=	SIP=""
 ARGS+=		--trace
 .endif
 
+.if ${OSVERSION} < 700000
+BROKEN=		does not compile on 6.X
+.endif
+
 do-configure:
 	cd ${WRKSRC} && ${SETENV} ${CONFIGURE_ENV}\
 		${PYTHON_CMD} configure.py ${ARGS}
diff --git a/net/py-qt4-network/Makefile b/net/py-qt4-network/Makefile
index 822abf5f0cf3..f8dfce0d0989 100644
--- a/net/py-qt4-network/Makefile
+++ b/net/py-qt4-network/Makefile
@@ -65,6 +65,10 @@ PLIST_SUB+=	SIP=""
 ARGS+=		--trace
 .endif
 
+.if ${OSVERSION} < 700000
+BROKEN=		does not compile on 6.X
+.endif
+
 do-configure:
 	cd ${WRKSRC} && ${SETENV} ${CONFIGURE_ENV}\
 		${PYTHON_CMD} configure.py ${ARGS}
diff --git a/textproc/py-qt4-xml/Makefile b/textproc/py-qt4-xml/Makefile
index e2dbcc83458b..780ff96527a5 100644
--- a/textproc/py-qt4-xml/Makefile
+++ b/textproc/py-qt4-xml/Makefile
@@ -65,6 +65,10 @@ PLIST_SUB+=	SIP=""
 ARGS+=		--trace
 .endif
 
+.if ${OSVERSION} < 700000
+BROKEN=		does not compile on 6.X
+.endif
+
 do-configure:
 	cd ${WRKSRC} && ${SETENV} ${CONFIGURE_ENV}\
 		${PYTHON_CMD} configure.py ${ARGS}
diff --git a/x11-toolkits/py-qt4-gui/Makefile b/x11-toolkits/py-qt4-gui/Makefile
index 9724caeb8be7..3a3c4bf2df34 100644
--- a/x11-toolkits/py-qt4-gui/Makefile
+++ b/x11-toolkits/py-qt4-gui/Makefile
@@ -70,6 +70,10 @@ ARGS+=		--trace
 BROKEN=		Does not compile on sparc64
 .endif
 
+.if ${OSVERSION} < 700000
+BROKEN=		does not compile on 6.X
+.endif
+
 do-configure:
 	cd ${WRKSRC} && ${SETENV} ${CONFIGURE_ENV}\
 		${PYTHON_CMD} configure.py ${ARGS}