fix: use absolute PWD include paths for mac and linux cross-compatibility

Author: Raghavan-04

Makefile

@@ -1,27 +1,29 @@
 # Verification tool configuration
 VERILATOR = verilator
 CXX = g++
-FLAGS = -Wall -Wno-fatal --trace --cc -CFLAGS "-I../../tb -I../../src"
+FLAGS = -Wall -Wno-fatal --trace --cc
 
 # Project directories
 SRC_DIR = src
 TB_DIR = tb
 SIM_DIR = sim
 
-# Default target
 .PHONY: all compile run view clean
 
 all: run
 
 compile:
 	@mkdir -p $(SIM_DIR)
 	$(VERILATOR) $(FLAGS) \
+		-I$(SRC_DIR) \
+		-I$(TB_DIR) \
+		-CFLAGS "-I$(PWD)/$(TB_DIR) -I$(PWD)/$(SRC_DIR)" \
 		$(SRC_DIR)/top_accelerator.sv \
 		$(SRC_DIR)/mac_unit.sv \
 		$(SRC_DIR)/sync_fifo.sv \
 		--exe $(TB_DIR)/tb_top.cpp \
 		--Mdir $(SIM_DIR)/obj_dir
-	$(MAKE) -C $(SIM_DIR)/obj_dir -f Vtop_accelerator.mk
+	$(MAKE) -C $(SIM_DIR)/obj_dir -f Vtop_accelerator.mk Vtop_accelerator
 
 run: compile
 	@echo "--- Running Simulation ---"