Add CARAVEL_PATH for the testbenches
diff --git a/caravel b/caravel
index 3d78839..e68e07d 160000
--- a/caravel
+++ b/caravel
@@ -1 +1 @@
-Subproject commit 3d78839648ae5e228739af3785cc2f378d636114
+Subproject commit e68e07d00a87b1748f0b0d932c7f7810a25e8890
diff --git a/verilog/dv/io_ports/Makefile b/verilog/dv/io_ports/Makefile
index a8d05b4..b606905 100644
--- a/verilog/dv/io_ports/Makefile
+++ b/verilog/dv/io_ports/Makefile
@@ -59,7 +59,7 @@
 	vvp $<
 
 %.elf: %.c $(CARAVEL_FIRMWARE_PATH)/sections.lds $(CARAVEL_FIRMWARE_PATH)/start.s
-	${GCC_PATH}/${GCC_PREFIX}-gcc -march=rv32imc -mabi=ilp32 -Wl,-Bstatic,-T,$(CARAVEL_FIRMWARE_PATH)/sections.lds,--strip-debug -ffreestanding -nostdlib -o $@ $(CARAVEL_FIRMWARE_PATH)/start.s $<
+	${GCC_PATH}/${GCC_PREFIX}-gcc -I $(CARAVEL_PATH) -march=rv32imc -mabi=ilp32 -Wl,-Bstatic,-T,$(CARAVEL_FIRMWARE_PATH)/sections.lds,--strip-debug -ffreestanding -nostdlib -o $@ $(CARAVEL_FIRMWARE_PATH)/start.s $<
 
 %.hex: %.elf
 	${GCC_PATH}/${GCC_PREFIX}-objcopy -O verilog $< $@ 
diff --git a/verilog/dv/io_ports/io_ports.c b/verilog/dv/io_ports/io_ports.c
index 3574cd7..eb46b84 100644
--- a/verilog/dv/io_ports/io_ports.c
+++ b/verilog/dv/io_ports/io_ports.c
@@ -15,7 +15,9 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
-#include "../../../caravel/verilog/dv/caravel/defs.h"
+// This include is relative to $CARAVEL_PATH (see Makefile)
+#include "verilog/dv/caravel/defs.h"
+#include "verilog/dv/caravel/stub.c"
 
 /*
 	IO Test:
diff --git a/verilog/dv/la_test1/Makefile b/verilog/dv/la_test1/Makefile
index 33cf8ac..39f3dce 100644
--- a/verilog/dv/la_test1/Makefile
+++ b/verilog/dv/la_test1/Makefile
@@ -59,7 +59,7 @@
 	vvp $<
 
 %.elf: %.c $(CARAVEL_FIRMWARE_PATH)/sections.lds $(CARAVEL_FIRMWARE_PATH)/start.s
-	${GCC_PATH}/${GCC_PREFIX}-gcc -march=rv32imc -mabi=ilp32 -Wl,-Bstatic,-T,$(CARAVEL_FIRMWARE_PATH)/sections.lds,--strip-debug -ffreestanding -nostdlib -o $@ $(CARAVEL_FIRMWARE_PATH)/start.s $<
+	${GCC_PATH}/${GCC_PREFIX}-gcc -I $(CARAVEL_PATH) -march=rv32imc -mabi=ilp32 -Wl,-Bstatic,-T,$(CARAVEL_FIRMWARE_PATH)/sections.lds,--strip-debug -ffreestanding -nostdlib -o $@ $(CARAVEL_FIRMWARE_PATH)/start.s $<
 
 %.hex: %.elf
 	${GCC_PATH}/${GCC_PREFIX}-objcopy -O verilog $< $@ 
diff --git a/verilog/dv/la_test1/la_test1.c b/verilog/dv/la_test1/la_test1.c
index 257301c..b77c8d5 100644
--- a/verilog/dv/la_test1/la_test1.c
+++ b/verilog/dv/la_test1/la_test1.c
@@ -15,8 +15,9 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
-#include "../../../caravel/verilog/dv/caravel/defs.h"
-#include "../../../caravel/verilog/dv/caravel/stub.c"
+// This include is relative to $CARAVEL_PATH (see Makefile)
+#include "verilog/dv/caravel/defs.h"
+#include "verilog/dv/caravel/stub.c"
 
 // --------------------------------------------------------
 
diff --git a/verilog/dv/la_test2/Makefile b/verilog/dv/la_test2/Makefile
index 44da758..597ace9 100644
--- a/verilog/dv/la_test2/Makefile
+++ b/verilog/dv/la_test2/Makefile
@@ -59,7 +59,7 @@
 	vvp $<
 
 %.elf: %.c $(CARAVEL_FIRMWARE_PATH)/sections.lds $(CARAVEL_FIRMWARE_PATH)/start.s
-	${GCC_PATH}/${GCC_PREFIX}-gcc -march=rv32imc -mabi=ilp32 -Wl,-Bstatic,-T,$(CARAVEL_FIRMWARE_PATH)/sections.lds,--strip-debug -ffreestanding -nostdlib -o $@ $(CARAVEL_FIRMWARE_PATH)/start.s $<
+	${GCC_PATH}/${GCC_PREFIX}-gcc -I $(CARAVEL_PATH) march=rv32imc -mabi=ilp32 -Wl,-Bstatic,-T,$(CARAVEL_FIRMWARE_PATH)/sections.lds,--strip-debug -ffreestanding -nostdlib -o $@ $(CARAVEL_FIRMWARE_PATH)/start.s $<
 
 %.hex: %.elf
 	${GCC_PATH}/${GCC_PREFIX}-objcopy -O verilog $< $@ 
diff --git a/verilog/dv/la_test2/la_test2.c b/verilog/dv/la_test2/la_test2.c
index 7c0556f..1b8a383 100644
--- a/verilog/dv/la_test2/la_test2.c
+++ b/verilog/dv/la_test2/la_test2.c
@@ -15,8 +15,9 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
-#include "../../../caravel/verilog/dv/caravel/defs.h"
-#include "../../../caravel/verilog/dv/caravel/stub.c"
+// This include is relative to $CARAVEL_PATH (see Makefile)
+#include "verilog/dv/caravel/defs.h"
+#include "verilog/dv/caravel/stub.c"
 
 /*
 	MPRJ LA Test:
diff --git a/verilog/dv/wb_port/Makefile b/verilog/dv/wb_port/Makefile
index 7b31a5b..d7f6e7b 100644
--- a/verilog/dv/wb_port/Makefile
+++ b/verilog/dv/wb_port/Makefile
@@ -59,7 +59,7 @@
 	vvp $<
 
 %.elf: %.c $(CARAVEL_FIRMWARE_PATH)/sections.lds $(CARAVEL_FIRMWARE_PATH)/start.s
-	${GCC_PATH}/${GCC_PREFIX}-gcc -march=rv32imc -mabi=ilp32 -Wl,-Bstatic,-T,$(CARAVEL_FIRMWARE_PATH)/sections.lds,--strip-debug -ffreestanding -nostdlib -o $@ $(CARAVEL_FIRMWARE_PATH)/start.s $<
+	${GCC_PATH}/${GCC_PREFIX}-gcc -I $(CARAVEL_PATH) -march=rv32imc -mabi=ilp32 -Wl,-Bstatic,-T,$(CARAVEL_FIRMWARE_PATH)/sections.lds,--strip-debug -ffreestanding -nostdlib -o $@ $(CARAVEL_FIRMWARE_PATH)/start.s $<
 
 %.hex: %.elf
 	${GCC_PATH}/${GCC_PREFIX}-objcopy -O verilog $< $@ 
diff --git a/verilog/dv/wb_port/wb_port.c b/verilog/dv/wb_port/wb_port.c
index a742477..46d7783 100644
--- a/verilog/dv/wb_port/wb_port.c
+++ b/verilog/dv/wb_port/wb_port.c
@@ -15,8 +15,9 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
-#include "../../../caravel/verilog/dv/caravel/defs.h"
-#include "../../../caravel/verilog/dv/caravel/stub.c"
+// This include is relative to $CARAVEL_PATH (see Makefile)
+#include "verilog/dv/caravel/defs.h"
+#include "verilog/dv/caravel/stub.c"
 
 /*
 	Wishbone Test: