diff --git a/modules/v4d/samples/beauty/Makefile b/modules/v4d/samples/beauty/Makefile
deleted file mode 100644
index 27db9f2f3..000000000
--- a/modules/v4d/samples/beauty/Makefile
+++ /dev/null
@@ -1,58 +0,0 @@
-ifdef EMSDK
-TARGET := beauty-demo.js
-else
-TARGET := beauty-demo
-endif
-
-SRCS    := beauty-demo.cpp
-
-#precompiled headers
-HEADERS := 
-OBJS    := ${SRCS:.cpp=.o}
-DEPS    := ${SRCS:.cpp=.dep} 
-
-CXXFLAGS += -fpic
-ifdef EMSDK
-LDFLAGS += --preload-file assets/
-endif
-LIBS += -lm -lopencv_dnn -lopencv_face -lopencv_objdetect -lopencv_stitching -lopencv_v4d
-ifndef EMSDK
-LIBS += -lOpenCL
-else
-LIBS += -lopencv_video -lopencv_tracking -llibprotobuf
-endif
-
-.PHONY: all release debug clean distclean 
-
-all: release
-release: ${TARGET}
-debug: ${TARGET}
-info: ${TARGET}
-profile: ${TARGET}
-unsafe: ${TARGET}
-asan: ${TARGET}
-
-${TARGET}: ${OBJS}
-	${CXX} ${LDFLAGS} -o $@ $^ ${LIBS}
-
-${OBJS}: %.o: %.cpp %.dep ${GCH}
-	${CXX} ${CXXFLAGS} -o $@ -c $<
-
-${DEPS}: %.dep: %.cpp Makefile 
-	${CXX} ${CXXFLAGS} -MM $< > $@ 
-
-${GCH}: %.gch: ${HEADERS} 
-	${CXX} ${CXXFLAGS} -o $@ -c ${@:.gch=.hpp}
-
-install:
-	mkdir -p ${DESTDIR}/${PREFIX}
-	cp ${TARGET} ${DESTDIR}/${PREFIX}
-
-uninstall:
-	rm ${DESTDIR}/${PREFIX}/${TARGET}
-
-clean:
-	rm -f *~ ${DEPS} ${OBJS} ${CUO} ${GCH} ${TARGET} 
-
-distclean: clean
-
diff --git a/modules/v4d/samples/font/Makefile b/modules/v4d/samples/font/Makefile
deleted file mode 100644
index aaa6ad490..000000000
--- a/modules/v4d/samples/font/Makefile
+++ /dev/null
@@ -1,50 +0,0 @@
-ifdef EMSDK
-TARGET := font-demo.html
-else
-TARGET := font-demo
-endif
-SRCS    := font-demo.cpp
-
-#precompiled headers
-HEADERS := 
-OBJS    := ${SRCS:.cpp=.o}
-DEPS    := ${SRCS:.cpp=.dep} 
-
-CXXFLAGS += -fpic
-LDFLAGS +=  
-LIBS += -lm -lopencv_v4d
-
-.PHONY: all release debug clean distclean 
-
-all: release
-release: ${TARGET}
-debug: ${TARGET}
-info: ${TARGET}
-profile: ${TARGET}
-unsafe: ${TARGET}
-asan: ${TARGET}
-
-${TARGET}: ${OBJS}
-	${CXX} ${LDFLAGS} -o $@ $^ ${LIBS}
-
-${OBJS}: %.o: %.cpp %.dep ${GCH}
-	${CXX} ${CXXFLAGS} -o $@ -c $<
-
-${DEPS}: %.dep: %.cpp Makefile 
-	${CXX} ${CXXFLAGS} -MM $< > $@ 
-
-${GCH}: %.gch: ${HEADERS} 
-	${CXX} ${CXXFLAGS} -o $@ -c ${@:.gch=.hpp}
-
-install:
-	mkdir -p ${DESTDIR}/${PREFIX}
-	cp ${TARGET} ${DESTDIR}/${PREFIX}
-
-uninstall:
-	rm ${DESTDIR}/${PREFIX}/${TARGET}
-
-clean:
-	rm -f *~ ${DEPS} ${OBJS} ${CUO} ${GCH} ${TARGET} 
-
-distclean: clean
-
diff --git a/modules/v4d/samples/nanovg/Makefile b/modules/v4d/samples/nanovg/Makefile
deleted file mode 100644
index add8507e8..000000000
--- a/modules/v4d/samples/nanovg/Makefile
+++ /dev/null
@@ -1,46 +0,0 @@
-TARGET := nanovg-demo
-
-SRCS    := nanovg-demo.cpp
-
-#precompiled headers
-HEADERS := ../common/subsystems.hpp 
-OBJS    := ${SRCS:.cpp=.o}
-DEPS    := ${SRCS:.cpp=.dep} 
-
-CXXFLAGS += -fpic
-LDFLAGS +=  
-LIBS += -lm -lopencv_v4d
-.PHONY: all release debug clean distclean 
-
-all: release
-release: ${TARGET}
-debug: ${TARGET}
-info: ${TARGET}
-profile: ${TARGET}
-unsafe: ${TARGET}
-asan: ${TARGET}
-
-${TARGET}: ${OBJS}
-	${CXX} ${LDFLAGS} -o $@ $^ ${LIBS}
-
-${OBJS}: %.o: %.cpp %.dep ${GCH}
-	${CXX} ${CXXFLAGS} -o $@ -c $<
-
-${DEPS}: %.dep: %.cpp Makefile 
-	${CXX} ${CXXFLAGS} -MM $< > $@ 
-
-${GCH}: %.gch: ${HEADERS} 
-	${CXX} ${CXXFLAGS} -o $@ -c ${@:.gch=.hpp}
-
-install:
-	mkdir -p ${DESTDIR}/${PREFIX}
-	cp ${TARGET} ${DESTDIR}/${PREFIX}
-
-uninstall:
-	rm ${DESTDIR}/${PREFIX}/${TARGET}
-
-clean:
-	rm -f *~ ${DEPS} ${OBJS} ${CUO} ${GCH} ${TARGET} 
-
-distclean: clean
-
diff --git a/modules/v4d/samples/optflow/Makefile b/modules/v4d/samples/optflow/Makefile
deleted file mode 100644
index 5c0a9bdf0..000000000
--- a/modules/v4d/samples/optflow/Makefile
+++ /dev/null
@@ -1,53 +0,0 @@
-ifdef EMSDK
-TARGET := optflow-demo.js
-else
-TARGET := optflow-demo
-endif
-
-SRCS := optflow-demo.cpp
-
-#precompiled headers
-HEADERS := 
-OBJS := ${SRCS:.cpp=.o}
-DEPS := ${SRCS:.cpp=.dep} 
-
-CXXFLAGS += -fpic
-LIBS += -lm -lopencv_optflow -lopencv_video -lopencv_features2d -lopencv_v4d -lz
-ifndef EMSDK
-LIBS += -lOpenCL
-endif
-
-.PHONY: all release debug clean distclean 
-
-all: release
-release: ${TARGET}
-debug: ${TARGET}
-info: ${TARGET}
-profile: ${TARGET}
-unsafe: ${TARGET}
-asan: ${TARGET}
-
-${TARGET}: ${OBJS}
-	${CXX} ${LDFLAGS} -o $@ $^ ${LIBS}
-
-${OBJS}: %.o: %.cpp %.dep ${GCH}
-	${CXX} ${CXXFLAGS} -o $@ -c $<
-
-${DEPS}: %.dep: %.cpp Makefile 
-	${CXX} ${CXXFLAGS} -MM $< > $@ 
-
-${GCH}: %.gch: ${HEADERS} 
-	${CXX} ${CXXFLAGS} -o $@ -c ${@:.gch=.hpp}
-
-install:
-	mkdir -p ${DESTDIR}/${PREFIX}
-	cp ${TARGET} ${DESTDIR}/${PREFIX}
-
-uninstall:
-	rm ${DESTDIR}/${PREFIX}/${TARGET}
-
-clean:
-	rm -f *~ ${DEPS} ${OBJS} ${CUO} ${GCH} ${TARGET} 
-
-distclean: clean
-
diff --git a/modules/v4d/samples/pedestrian/Makefile b/modules/v4d/samples/pedestrian/Makefile
deleted file mode 100644
index 324f8a75e..000000000
--- a/modules/v4d/samples/pedestrian/Makefile
+++ /dev/null
@@ -1,46 +0,0 @@
-TARGET := pedestrian-demo
-
-SRCS    := pedestrian-demo.cpp
-
-#precompiled headers
-HEADERS := 
-OBJS    := ${SRCS:.cpp=.o}
-DEPS    := ${SRCS:.cpp=.dep} 
-
-CXXFLAGS += -fpic
-LDFLAGS +=  
-LIBS += -lm -lOpenCL -lopencv_v4d
-.PHONY: all release debug clean distclean 
-
-all: release
-release: ${TARGET}
-debug: ${TARGET}
-info: ${TARGET}
-profile: ${TARGET}
-unsafe: ${TARGET}
-asan: ${TARGET}
-
-${TARGET}: ${OBJS}
-	${CXX} ${LDFLAGS} -o $@ $^ ${LIBS}
-
-${OBJS}: %.o: %.cpp %.dep ${GCH}
-	${CXX} ${CXXFLAGS} -o $@ -c $<
-
-${DEPS}: %.dep: %.cpp Makefile 
-	${CXX} ${CXXFLAGS} -MM $< > $@ 
-
-${GCH}: %.gch: ${HEADERS} 
-	${CXX} ${CXXFLAGS} -o $@ -c ${@:.gch=.hpp}
-
-install:
-	mkdir -p ${DESTDIR}/${PREFIX}
-	cp ${TARGET} ${DESTDIR}/${PREFIX}
-
-uninstall:
-	rm ${DESTDIR}/${PREFIX}/${TARGET}
-
-clean:
-	rm -f *~ ${DEPS} ${OBJS} ${CUO} ${GCH} ${TARGET} 
-
-distclean: clean
-
diff --git a/modules/v4d/samples/shader/Makefile b/modules/v4d/samples/shader/Makefile
deleted file mode 100644
index 8f3154a43..000000000
--- a/modules/v4d/samples/shader/Makefile
+++ /dev/null
@@ -1,49 +0,0 @@
-ifndef EMSDK
-TARGET := shader-demo
-else
-TARGET := shader-demo.js
-endif
-SRCS    := shader-demo.cpp
-
-#precompiled headers
-HEADERS := 
-OBJS    := ${SRCS:.cpp=.o} 
-DEPS    := ${SRCS:.cpp=.dep} 
-
-CXXFLAGS += -fpic
-LDFLAGS +=  
-LIBS += -lm -lopencv_v4d
-.PHONY: all release debug clean distclean 
-
-all: release
-release: ${TARGET}
-debug: ${TARGET}
-info: ${TARGET}
-profile: ${TARGET}
-unsafe: ${TARGET}
-asan: ${TARGET}
-
-${TARGET}: ${OBJS}
-	${CXX} ${LDFLAGS} -o $@ $^ ${LIBS}
-
-${OBJS}: %.o: %.cpp %.dep ${GCH}
-	${CXX} ${CXXFLAGS} -o $@ -c $<
-
-${DEPS}: %.dep: %.cpp Makefile 
-	${CXX} ${CXXFLAGS} -MM $< > $@ 
-
-${GCH}: %.gch: ${HEADERS} 
-	${CXX} ${CXXFLAGS} -o $@ -c ${@:.gch=.hpp}
-
-install:
-	mkdir -p ${DESTDIR}/${PREFIX}
-	cp ${TARGET} ${DESTDIR}/${PREFIX}
-
-uninstall:
-	rm ${DESTDIR}/${PREFIX}/${TARGET}
-
-clean:
-	rm -f *~ ${DEPS} ${OBJS} ${CUO} ${GCH} ${TARGET} 
-
-distclean: clean
-
diff --git a/modules/v4d/samples/tetra/Makefile b/modules/v4d/samples/tetra/Makefile
deleted file mode 100644
index d03b20c25..000000000
--- a/modules/v4d/samples/tetra/Makefile
+++ /dev/null
@@ -1,46 +0,0 @@
-TARGET := tetra-demo
-
-SRCS    := tetra-demo.cpp
-
-#precompiled headers
-HEADERS := 
-OBJS    := ${SRCS:.cpp=.o} 
-DEPS    := ${SRCS:.cpp=.dep} 
-
-CXXFLAGS += -fpic
-LDFLAGS +=  
-LIBS += -lm -lopencv_v4d -lEGL
-.PHONY: all release debug clean distclean 
-
-all: release
-release: ${TARGET}
-debug: ${TARGET}
-info: ${TARGET}
-profile: ${TARGET}
-unsafe: ${TARGET}
-asan: ${TARGET}
-
-${TARGET}: ${OBJS}
-	${CXX} ${LDFLAGS} -o $@ $^ ${LIBS}
-
-${OBJS}: %.o: %.cpp %.dep ${GCH}
-	${CXX} ${CXXFLAGS} -o $@ -c $<
-
-${DEPS}: %.dep: %.cpp Makefile 
-	${CXX} ${CXXFLAGS} -MM $< > $@ 
-
-${GCH}: %.gch: ${HEADERS} 
-	${CXX} ${CXXFLAGS} -o $@ -c ${@:.gch=.hpp}
-
-install:
-	mkdir -p ${DESTDIR}/${PREFIX}
-	cp ${TARGET} ${DESTDIR}/${PREFIX}
-
-uninstall:
-	rm ${DESTDIR}/${PREFIX}/${TARGET}
-
-clean:
-	rm -f *~ ${DEPS} ${OBJS} ${CUO} ${GCH} ${TARGET} 
-
-distclean: clean
-
diff --git a/modules/v4d/samples/video/Makefile b/modules/v4d/samples/video/Makefile
deleted file mode 100644
index 03c858f85..000000000
--- a/modules/v4d/samples/video/Makefile
+++ /dev/null
@@ -1,46 +0,0 @@
-TARGET := video-demo
-
-SRCS    := video-demo.cpp
-
-#precompiled headers
-HEADERS := 
-OBJS    := ${SRCS:.cpp=.o} 
-DEPS    := ${SRCS:.cpp=.dep} 
-
-CXXFLAGS += -fpic
-LDFLAGS +=  
-LIBS += -lm -lopencv_v4d -lopencv_v4d
-.PHONY: all release debug clean distclean 
-
-all: release
-release: ${TARGET}
-debug: ${TARGET}
-info: ${TARGET}
-profile: ${TARGET}
-unsafe: ${TARGET}
-asan: ${TARGET}
-
-${TARGET}: ${OBJS}
-	${CXX} ${LDFLAGS} -o $@ $^ ${LIBS}
-
-${OBJS}: %.o: %.cpp %.dep ${GCH}
-	${CXX} ${CXXFLAGS} -o $@ -c $<
-
-${DEPS}: %.dep: %.cpp Makefile 
-	${CXX} ${CXXFLAGS} -MM $< > $@ 
-
-${GCH}: %.gch: ${HEADERS} 
-	${CXX} ${CXXFLAGS} -o $@ -c ${@:.gch=.hpp}
-
-install:
-	mkdir -p ${DESTDIR}/${PREFIX}
-	cp ${TARGET} ${DESTDIR}/${PREFIX}
-
-uninstall:
-	rm ${DESTDIR}/${PREFIX}/${TARGET}
-
-clean:
-	rm -f *~ ${DEPS} ${OBJS} ${CUO} ${GCH} ${TARGET} 
-
-distclean: clean
-