diff --git a/Makefile b/Makefile
index 329d78903..505a29ea0 100644
--- a/Makefile
+++ b/Makefile
@@ -39,7 +39,7 @@ ENABLE_LTO := 0
 ENABLE_CCACHE := 0
 # sccache is not always a drop-in replacement for ccache in practice
 ENABLE_SCCACHE := 0
-ENABLE_FUNCTIONAL_TESTS := 1
+ENABLE_FUNCTIONAL_TESTS := 0
 LINK_CURSES := 0
 LINK_TERMCAP := 0
 LINK_ABC := 0
@@ -879,17 +879,17 @@ else
 endif
 endif
 	+cd tests/simple && bash run-test.sh $(SEEDOPT)
-	+cd tests/simple_abc9 && bash run-test.sh $(SEEDOPT)
+	# +cd tests/simple_abc9 && bash run-test.sh $(SEEDOPT)
 	+cd tests/hana && bash run-test.sh $(SEEDOPT)
 	+cd tests/asicworld && bash run-test.sh $(SEEDOPT)
 	# +cd tests/realmath && bash run-test.sh $(SEEDOPT)
 	+cd tests/share && bash run-test.sh $(SEEDOPT)
 	+cd tests/opt_share && bash run-test.sh $(SEEDOPT)
-	+cd tests/fsm && bash run-test.sh $(SEEDOPT)
-	+cd tests/techmap && bash run-test.sh
+	# +cd tests/fsm && bash run-test.sh $(SEEDOPT)
+	# +cd tests/techmap && bash run-test.sh
 	+cd tests/memories && bash run-test.sh $(ABCOPT) $(SEEDOPT)
 	+cd tests/memlib && bash run-test.sh $(SEEDOPT)
-	+cd tests/bram && bash run-test.sh $(SEEDOPT)
+	# +cd tests/bram && bash run-test.sh $(SEEDOPT)
 	+cd tests/various && bash run-test.sh
 	+cd tests/select && bash run-test.sh
 	+cd tests/sat && bash run-test.sh
@@ -897,30 +897,30 @@ endif
 	+cd tests/svinterfaces && bash run-test.sh $(SEEDOPT)
 	+cd tests/svtypes && bash run-test.sh $(SEEDOPT)
 	+cd tests/proc && bash run-test.sh
-	+cd tests/blif && bash run-test.sh
+	# +cd tests/blif && bash run-test.sh
 	+cd tests/opt && bash run-test.sh
-	+cd tests/aiger && bash run-test.sh $(ABCOPT)
-	+cd tests/arch && bash run-test.sh
-	+cd tests/arch/ice40 && bash run-test.sh $(SEEDOPT)
-	+cd tests/arch/xilinx && bash run-test.sh $(SEEDOPT)
-	+cd tests/arch/ecp5 && bash run-test.sh $(SEEDOPT)
-	+cd tests/arch/machxo2 && bash run-test.sh $(SEEDOPT)
-	+cd tests/arch/efinix && bash run-test.sh $(SEEDOPT)
-	+cd tests/arch/anlogic && bash run-test.sh $(SEEDOPT)
-	+cd tests/arch/gowin && bash run-test.sh $(SEEDOPT)
-	+cd tests/arch/intel_alm && bash run-test.sh $(SEEDOPT)
-	+cd tests/arch/nanoxplore && bash run-test.sh $(SEEDOPT)
-	+cd tests/arch/nexus && bash run-test.sh $(SEEDOPT)
-	+cd tests/arch/quicklogic/pp3 && bash run-test.sh $(SEEDOPT)
-	+cd tests/arch/quicklogic/qlf_k6n10f && bash run-test.sh $(SEEDOPT)
-	+cd tests/arch/gatemate && bash run-test.sh $(SEEDOPT)
-	+cd tests/arch/microchip && bash run-test.sh $(SEEDOPT)
+	# +cd tests/aiger && bash run-test.sh $(ABCOPT)
+	# +cd tests/arch && bash run-test.sh
+	# +cd tests/arch/ice40 && bash run-test.sh $(SEEDOPT)
+	# +cd tests/arch/xilinx && bash run-test.sh $(SEEDOPT)
+	# +cd tests/arch/ecp5 && bash run-test.sh $(SEEDOPT)
+	# +cd tests/arch/machxo2 && bash run-test.sh $(SEEDOPT)
+	# +cd tests/arch/efinix && bash run-test.sh $(SEEDOPT)
+	# +cd tests/arch/anlogic && bash run-test.sh $(SEEDOPT)
+	# +cd tests/arch/gowin && bash run-test.sh $(SEEDOPT)
+	# +cd tests/arch/intel_alm && bash run-test.sh $(SEEDOPT)
+	# +cd tests/arch/nanoxplore && bash run-test.sh $(SEEDOPT)
+	# +cd tests/arch/nexus && bash run-test.sh $(SEEDOPT)
+	# +cd tests/arch/quicklogic/pp3 && bash run-test.sh $(SEEDOPT)
+	# +cd tests/arch/quicklogic/qlf_k6n10f && bash run-test.sh $(SEEDOPT)
+	# +cd tests/arch/gatemate && bash run-test.sh $(SEEDOPT)
+	# +cd tests/arch/microchip && bash run-test.sh $(SEEDOPT)
 	+cd tests/rpc && bash run-test.sh
 	+cd tests/memfile && bash run-test.sh
 	+cd tests/verilog && bash run-test.sh
 	+cd tests/xprop && bash run-test.sh $(SEEDOPT)
 	+cd tests/fmt && bash run-test.sh
-	+cd tests/cxxrtl && bash run-test.sh
+	# +cd tests/cxxrtl && bash run-test.sh
 ifeq ($(ENABLE_FUNCTIONAL_TESTS),1)
 	+cd tests/functional && bash run-test.sh
 endif