diff --git a/code-size-benchmark/Makefile b/code-size-benchmark/Makefile
index 02dc461..79841af 100644
--- a/code-size-benchmark/Makefile
+++ b/code-size-benchmark/Makefile
@@ -6,32 +6,35 @@ all: $(TARGETS)
 lib/libmorph_%.so: src/%.c
 	$(CC) -O3 -shared -o $@ -fPIC -Iinclude $<
 
-posint-dec-to-hex-generated.c:
-	cargo run -- \
+ldmc:
+	cargo install --path ..
+
+posint-dec-to-hex-generated.c: ldmc
+	ldmc \
 	   "ℕ~<PosInt 10 BigEndian>~<Seq~<ValueTerminated '\\0'> <Digit 10>~Char~Ascii~x86.UInt8>" \
 	   "ℕ~<PosInt 16 BigEndian>~<Seq~<ValueTerminated '\\0'> <Digit 16>~Char~Ascii~x86.UInt8>" \
-	   ../morphisms/*.morphism-base >| $@
+	   ../morphisms/*.morphism-base >| target/$@
 
 posint-dec-to-hex-generated-gcc: posint-dec-to-hex-generated.c
-	gcc -g -Os -flto -o $@ -I../morphisms/include $< ../morphisms/src/length-prefix.c
+	gcc -g -Os -flto -o target/$@ -I../morphisms/runtime/include target/$< ../morphisms/runtime/src/*.c
 
 posint-dec-to-hex-generated-clang: posint-dec-to-hex-generated.c
-	clang -g -Os -flto -o $@ -I../morphisms/include $< ../morphisms/src/length-prefix.c
+	clang -g -Os -flto -o target/$@ -I../morphisms/runtime/include target/$< ../morphisms/runtime/src/*.c
 
 posint-dec-to-hex-optimal-gcc: posint-dec-to-hex-optimal.c
-	gcc -g -Os -flto -o $@ $<
+	gcc -g -Os -flto -o target/$@ target/$<
 
 posint-dec-to-hex-optimal-clang: posint-dec-to-hex-optimal.c
-	clang -g -Os -flto -o $@ $<
+	clang -g -Os -flto -o target/$@ target/$<
 
 code-size-benchmark: posint-dec-to-hex-generated-gcc \
 					posint-dec-to-hex-generated-clang \
 				 	posint-dec-to-hex-optimal-gcc \
 					posint-dec-to-hex-optimal-clang
-	INST_COUNT_GEN_GCC=$(shell gdb --batch -ex "file posint-dec-to-hex-generated-gcc" -ex "disassemble main" | wc -l)
-	INST_COUNT_GEN_CLANG=$(shell gdb --batch -ex "file posint-dec-to-hex-generated-clang" -ex "disassemble main" | wc -l)
-	INST_COUNT_OPT_GCC=$(shell gdb --batch -ex "file posint-dec-to-hex-optimal-gcc" -ex "disassemble main" | wc -l)
-	INST_COUNT_OPT_CLANG=$(shell gdb --batch -ex "file posint-dec-to-hex-optimal-clang" -ex "disassemble main" | wc -l)
+	INST_COUNT_GEN_GCC=$(shell gdb --batch -ex "file target/posint-dec-to-hex-generated-gcc" -ex "disassemble main" | wc -l)
+	INST_COUNT_GEN_CLANG=$(shell gdb --batch -ex "file target/posint-dec-to-hex-generated-clang" -ex "disassemble main" | wc -l)
+	INST_COUNT_OPT_GCC=$(shell gdb --batch -ex "file target/posint-dec-to-hex-optimal-gcc" -ex "disassemble main" | wc -l)
+	INST_COUNT_OPT_CLANG=$(shell gdb --batch -ex "file target/posint-dec-to-hex-optimal-clang" -ex "disassemble main" | wc -l)
 
 clean:
 	rm $(TARGETS)
diff --git a/morphisms/include/array/length-prefix.h b/morphisms/runtime/include/array/length-prefix.h
similarity index 100%
rename from morphisms/include/array/length-prefix.h
rename to morphisms/runtime/include/array/length-prefix.h
diff --git a/morphisms/src/length-prefix.c b/morphisms/runtime/src/length-prefix.c
similarity index 100%
rename from morphisms/src/length-prefix.c
rename to morphisms/runtime/src/length-prefix.c