diff --git a/math/labplot/Makefile b/math/labplot/Makefile
index ba899b4f417..c76db49f011 100644
--- a/math/labplot/Makefile
+++ b/math/labplot/Makefile
@@ -1,7 +1,7 @@
 COMMENT =	data visualization and analysis software
 
 DISTNAME =	labplot-2.10.0
-REVISION =	3
+REVISION =	4
 
 CATEGORIES =	math x11
 
@@ -9,6 +9,9 @@ HOMEPAGE =	https://labplot.kde.org/
 
 MAINTAINER =	Rafael Sadowski <rsadowski@openbsd.org>
 
+# luajit (via cantorlibs)
+USE_NOBTCFI =	Yes
+
 # LGPL, GPL and many others
 PERMIT_PACKAGE =	Yes
 
diff --git a/net/snort/Makefile b/net/snort/Makefile
index 5e272757986..0d5e1e4f040 100644
--- a/net/snort/Makefile
+++ b/net/snort/Makefile
@@ -1,7 +1,7 @@
 COMMENT =		highly flexible sniffer/NIDS
 
 DISTNAME =		snort-2.9.20
-REVISION =		1
+REVISION =		2
 RULESV =		29200
 SUBST_VARS =		RULESV APPID_COMMENT
 
@@ -48,6 +48,7 @@ APPID_COMMENT =		"@comment "
 LIB_DEPENDS +=		lang/luajit
 WANTLIB +=		c++abi luajit-5.1
 APPID_COMMENT =
+USE_NOBTCFI =		Yes
 .endif
 
 CONFIGS	=		classification.config gen-msg.map reference.config \
diff --git a/x11/kde-applications/cantor/Makefile b/x11/kde-applications/cantor/Makefile
index 6659167f27b..542ab2a6347 100644
--- a/x11/kde-applications/cantor/Makefile
+++ b/x11/kde-applications/cantor/Makefile
@@ -1,8 +1,12 @@
 USE_WXNEEDED =	Yes
 
+# luajit
+USE_NOBTCFI =	Yes
+
 COMMENT =	KDE mathematical applications
 DISTNAME =	cantor-${VERSION}
 CATEGORIES =	education math
+REVISION =	0
 
 SHARED_LIBS +=  cantorlibs                54.1 # 17.08