diff --git a/tests/impulse-tests/Make.interp b/tests/impulse-tests/Make.interp
index 39f562c30f..4e6b469994 100644
--- a/tests/impulse-tests/Make.interp
+++ b/tests/impulse-tests/Make.interp
@@ -37,7 +37,7 @@ help:
 	@echo " 'interp' (default): check the double output using the interp backend"
 	@echo
 	@echo "Options:"
-	@echo " 'outdir' 	   : define the output directory (default to 'llvm')"
+	@echo " 'outdir'       : define the output directory (default to 'llvm')"
 	@echo " 'FAUSTOPTIONS' : define additional faust options (empty by default)"
 	@echo " 'precision'    : define filesCompare expected precision (empty by default)"
 
@@ -62,7 +62,8 @@ impulseinterp: $(SRCDIR)/impulseinterp.cpp $(LIB)
 #########################################################################
 # rules for interp
 
-# Specific rule to test 'control' primitive that currently uses the -lang ocpp backend (still compiling in scalar mode...)
+# Specific rule to test 'control' primitive that currently uses the -lang ocpp backend 
+# (still compiling in scalar mode...)
 ir/$(outdir)/control.ir: dsp/control.dsp reference/control.ir
 	@echo "Cannot be tested with the Interp backend"
 
diff --git a/tests/impulse-tests/Make.rust b/tests/impulse-tests/Make.rust
index eed72dacc1..5b76dcc826 100644
--- a/tests/impulse-tests/Make.rust
+++ b/tests/impulse-tests/Make.rust
@@ -20,109 +20,49 @@ precision ?=		# filesCompare precision (empty by default)
 .PHONY: test
 .DELETE_ON_ERROR:
 
-alldspfiles := $(wildcard dsp/*.dsp)
-allirfiles = $(alldspfiles:dsp/%.dsp=ir/rust/%.ir)
-
-all: filesCompare
-
-# Currently this lists all dependencies manually to allow for easily enabling/disabling
-# individual test cases. Later this can be replaced by the wildcard dependency:
-# all: $(allirfiles)
-
-all: ir/rust/APF.ir
-all: ir/rust/BPF.ir
-all: ir/rust/HPF.ir
-all: ir/rust/LPF.ir
-all: ir/rust/UITester.ir
-all: ir/rust/bandfilter.ir
-all: ir/rust/bargraph.ir
-# all: ir/rust/bs.ir
-all: ir/rust/capture.ir
-all: ir/rust/carre_volterra.ir
-all: ir/rust/comb_bug_exp.ir
-all: ir/rust/comb_delay1.ir
-all: ir/rust/comb_delay2.ir
-all: ir/rust/constant.ir
-all: ir/rust/cubic_distortion.ir
-all: ir/rust/dbmeter.ir
-all: ir/rust/delays.ir
-all: ir/rust/echo_bug.ir
-all: ir/rust/echo.ir
-all: ir/rust/freeverb.ir
-all: ir/rust/gate_compressor.ir
-all: ir/rust/harpe.ir
-all: ir/rust/highShelf.ir
-all: ir/rust/karplus.ir
-all: ir/rust/karplus32.ir
-all: ir/rust/lfboost.ir
-all: ir/rust/logical.ir
-all: ir/rust/lowboost.ir
-all: ir/rust/lowcut.ir
-all: ir/rust/lowShelf.ir
-all: ir/rust/math.ir
-all: ir/rust/math_simp.ir
-all: ir/rust/matrix.ir
-all: ir/rust/midi_tester.ir
-all: ir/rust/mixer.ir
-all: ir/rust/modulations.ir
-all: ir/rust/multibandfilter.ir
-all: ir/rust/noise.ir
-all: ir/rust/noiseabs.ir
-all: ir/rust/noisemetadata.ir
-all: ir/rust/notch.ir
-all: ir/rust/osc_enable.ir
-all: ir/rust/osc.ir
-all: ir/rust/osci.ir
-all: ir/rust/panpot.ir
-all: ir/rust/parametric_eq.ir
-all: ir/rust/peakingEQ.ir
-all: ir/rust/peakNotch.ir
-all: ir/rust/phaser_flanger.ir
-all: ir/rust/pitch_shifter.ir
-all: ir/rust/pow.ir
-all: ir/rust/precision.ir
-#all: ir/rust/prefix.ir
-all: ir/rust/priority.ir
-all: ir/rust/priority1.ir
-all: ir/rust/quadecho.ir
-all: ir/rust/reverb_designer.ir
-all: ir/rust/reverb_tester.ir
-all: ir/rust/smoothdelay.ir
-#all: ir/rust/sound.ir
-all: ir/rust/spat.ir
-all: ir/rust/spectral_level.ir
-all: ir/rust/spectral_tilt.ir
-all: ir/rust/stereoecho.ir
-all: ir/rust/switcher.ir
-all: ir/rust/table.ir
-all: ir/rust/table1.ir
-all: ir/rust/table2.ir
-all: ir/rust/tapiir.ir
-all: ir/rust/tester.ir
-all: ir/rust/tester2.ir
-all: ir/rust/tf_exp.ir
-all: ir/rust/thru_zero_flanger.ir
-all: ir/rust/UITester.ir
-all: ir/rust/vcf_wah_pedals.ir
-all: ir/rust/virtual_analog_oscillators.ir
-all: ir/rust/volume.ir
-all: ir/rust/vumeter.ir
-all: ir/rust/waveform1.ir
-all: ir/rust/waveform2.ir
-all: ir/rust/waveform3.ir
-all: ir/rust/waveform4.ir
-all: ir/rust/waveform5.ir
-all: ir/rust/waveform6.ir
-all: ir/rust/zita_rev1.ir
-
-filesCompare:
+dspfiles := $(wildcard dsp/*.dsp)
+listfiles = $(dspfiles:dsp/%.dsp=ir/$1/%.ir)
+
+#########################################################################
+all: filesCompare ir/$(outdir) $(call listfiles,$(outdir))
+
+#########################################################################
+# output directories
+ir/$(outdir):
+	mkdir -p ir/$(outdir)
+
+
+#########################################################################
+# tools
+filesCompare: 
 	$(MAKE) filesCompare
 
 #########################################################################
 # rules
-ir/$(outdir)/%.ir: reference/%.ir
-	mkdir -p ir/$(outdir)
-	$(FAUST) -lang rust $(FAUSTOPTIONS) -i -A ../../architecture dsp/$*.dsp -o archs/rust/src/bin/$*.rs
-	#cd archs/rust/ && cargo run --bin $* ../../$@
+
+ir/$(outdir)/sound.ir: dsp/sound.dsp 
+	$(FAUST) -lang rust $(FAUSTOPTIONS) dsp/sound.dsp -o archs/rust/src/bin/sound.rs > $@ 2>&1 || (echo "expected failure")
+	grep "ERROR : 'soundfile' primitive not yet supported for Rust" $@
+
+ir/rust/ec/bs.ir: dsp/bs.dsp 
+	$(FAUST) -lang rust $(FAUSTOPTIONS) dsp/bs.dsp -o archs/rust/src/bin/bs.rs > $@ 2>&1 || (echo "expected failure")
+	grep "ERROR : accessing foreign variable 'count' is not allowed in this compilation mode" $@
+
+ir/rust/vec4/osc_enable.ir: dsp/osc_enable.dsp 
+	$(FAUST) -lang rust $(FAUSTOPTIONS) dsp/osc_enable.dsp -o archs/rust/src/bin/osc_enable.rs > $@ 2>&1 || (echo "expected failure")
+	grep "ERROR : 'control/enable' can only be used in scalar mode" $@
+
+ir/rust/vec32/osc_enable.ir: dsp/osc_enable.dsp 
+	$(FAUST) -lang rust $(FAUSTOPTIONS) dsp/osc_enable.dsp -o archs/rust/src/bin/osc_enable.rs > $@ 2>&1 || (echo "expected failure")
+	grep "ERROR : 'control/enable' can only be used in scalar mode" $@
+
+ir/rust/vec4/prefix.ir: 
+	echo "todo fix bug #1071 to test dsp/prefix.dsp"
+
+ir/rust/vec32/prefix.ir: 
+	echo "todo fix bug #1071 to test dsp/prefix.dsp"
+
+ir/$(outdir)/%.ir: dsp/%.dsp reference/%.ir
+	$(FAUST) -lang rust $(FAUSTOPTIONS) dsp/$*.dsp -o archs/rust/src/bin/$*.rs
 	cd archs/rust/ && cargo run --release --bin $* ../../$@
-	$(COMPARE) $@ reference/$(notdir $@) $(precision)
+	$(COMPARE) $@ reference/$(notdir $@) $(precision) || (rm -f $@; false)
diff --git a/tests/impulse-tests/Makefile b/tests/impulse-tests/Makefile
index 37686d001f..1b360ee6f2 100644
--- a/tests/impulse-tests/Makefile
+++ b/tests/impulse-tests/Makefile
@@ -362,17 +362,12 @@ interp1:
 #########################################################################
 # Rust backend
 rust:
-	$(MAKE) -f Make.rust FAUSTOPTIONS="-I dsp -double -cm -a archs/rust/architecture_cm.rs"
-	rm -rf ir/rust
-	$(MAKE) -f Make.rust FAUSTOPTIONS="-I dsp -double -ec -a archs/rust/architecture.rs"
-	rm -rf ir/rust
-	$(MAKE) -f Make.rust FAUSTOPTIONS="-I dsp -double -a archs/rust/architecture_normal.rs"
-	rm -rf ir/rust
-	$(MAKE) -f Make.rust FAUSTOPTIONS="-I dsp -double -fp -a archs/rust/architecture_normal.rs"
-	rm -rf ir/rust
-	$(MAKE) -f Make.rust FAUSTOPTIONS="-I dsp -double -vec -vs 4 -a archs/rust/architecture_normal.rs"
-	rm -rf ir/rust
-	$(MAKE) -f Make.rust FAUSTOPTIONS="-I dsp -double -vec -vs 32 -a archs/rust/architecture_normal.rs"
+	$(MAKE) -f Make.rust outdir=rust/ec FAUSTOPTIONS="-I ../../libraries/ -double -ec -a archs/rust/architecture.rs"
+	$(MAKE) -f Make.rust outdir=rust/cm FAUSTOPTIONS="-I ../../libraries/ -double -cm -a archs/rust/architecture_cm.rs"
+	$(MAKE) -f Make.rust outdir=rust/no FAUSTOPTIONS="-I ../../libraries/ -double -a archs/rust/architecture_normal.rs"
+	$(MAKE) -f Make.rust outdir=rust/fp FAUSTOPTIONS="-I ../../libraries/ -double -fp -a archs/rust/architecture_normal.rs"
+	$(MAKE) -f Make.rust outdir=rust/vec4 FAUSTOPTIONS="-I ../../libraries/ -double -vec -vs 4 -a archs/rust/architecture_normal.rs"
+	$(MAKE) -f Make.rust outdir=rust/vec32 FAUSTOPTIONS="-I ../../libraries/ -double -vec -vs 32 -a archs/rust/architecture_normal.rs"
 
 #########################################################################
 # Cmajor backend