diff --git a/regression/apps/Makefile b/regression/apps/Makefile
index ebca80147..54e96f473 100644
--- a/regression/apps/Makefile
+++ b/regression/apps/Makefile
@@ -8,9 +8,15 @@ REGRESSION_BUILD_DIR ?= $(INITRAMFS)/regression
 TEST_APPS := signal_c pthread network hello_world hello_pie hello_c fork_c fork execve pty
 
 .PHONY: all
-all: 
-	@mkdir -p $(REGRESSION_BUILD_DIR)
-	@for test_app in $(TEST_APPS); \
-		do make --no-print-directory -C $${test_app}; \
-	done
+all: $(TEST_APPS) scripts
+
+.PHONY: $(TEST_APPS)
+$(TEST_APPS):
+	@make --no-print-directory -C $@
+
+$(REGRESSION_BUILD_DIR):
+	@mkdir -p $@
+
+.PHONY: scripts
+scripts: | $(REGRESSION_BUILD_DIR)
 	@make --no-print-directory BUILD_DIR=$(REGRESSION_BUILD_DIR) -C scripts
diff --git a/regression/apps/execve/Makefile b/regression/apps/execve/Makefile
index bf39ea0bf..cd19ae20b 100644
--- a/regression/apps/execve/Makefile
+++ b/regression/apps/execve/Makefile
@@ -2,4 +2,4 @@
 
 include ../test_common.mk
 
-EXTRA_C_FLAGS :=-static
+EXTRA_C_FLAGS := -static
diff --git a/regression/apps/fork/Makefile b/regression/apps/fork/Makefile
index 00cb44cdf..14c46e670 100644
--- a/regression/apps/fork/Makefile
+++ b/regression/apps/fork/Makefile
@@ -2,4 +2,4 @@
 
 include ../test_common.mk
 
-EXTRA_C_FLAGS :=-static -nostdlib
+EXTRA_C_FLAGS := -static -nostdlib
diff --git a/regression/apps/fork_c/Makefile b/regression/apps/fork_c/Makefile
index bf39ea0bf..cd19ae20b 100644
--- a/regression/apps/fork_c/Makefile
+++ b/regression/apps/fork_c/Makefile
@@ -2,4 +2,4 @@
 
 include ../test_common.mk
 
-EXTRA_C_FLAGS :=-static
+EXTRA_C_FLAGS := -static
diff --git a/regression/apps/hello_c/Makefile b/regression/apps/hello_c/Makefile
index e299341f1..37e7cb4c0 100644
--- a/regression/apps/hello_c/Makefile
+++ b/regression/apps/hello_c/Makefile
@@ -2,4 +2,4 @@
 
 include ../test_common.mk
 
-EXTRA_C_FLAGS :=-static -mno-sse
+EXTRA_C_FLAGS := -static -mno-sse
diff --git a/regression/apps/hello_world/Makefile b/regression/apps/hello_world/Makefile
index 00cb44cdf..14c46e670 100644
--- a/regression/apps/hello_world/Makefile
+++ b/regression/apps/hello_world/Makefile
@@ -2,4 +2,4 @@
 
 include ../test_common.mk
 
-EXTRA_C_FLAGS :=-static -nostdlib
+EXTRA_C_FLAGS := -static -nostdlib
diff --git a/regression/apps/pthread/Makefile b/regression/apps/pthread/Makefile
index 8f1ee0ae6..039e6e028 100644
--- a/regression/apps/pthread/Makefile
+++ b/regression/apps/pthread/Makefile
@@ -2,4 +2,4 @@
 
 include ../test_common.mk
 
-EXTRA_C_FLAGS :=-static -lpthread
+EXTRA_C_FLAGS := -static -lpthread
diff --git a/regression/apps/scripts/Makefile b/regression/apps/scripts/Makefile
index e41e64e0e..85ccd0834 100644
--- a/regression/apps/scripts/Makefile
+++ b/regression/apps/scripts/Makefile
@@ -1,5 +1,10 @@
 # SPDX-License-Identifier: MPL-2.0
 
+SOURCES := $(wildcard *.sh)
+TARGETS := $(addprefix $(BUILD_DIR)/, $(SOURCES))
+
 .PHONY: all
-all: ./*.sh
-	@cp ./*.sh $(BUILD_DIR)
+all: $(TARGETS)
+
+$(BUILD_DIR)/%.sh: %.sh
+	@cp $< $@
diff --git a/regression/apps/signal_c/Makefile b/regression/apps/signal_c/Makefile
index bf39ea0bf..cd19ae20b 100644
--- a/regression/apps/signal_c/Makefile
+++ b/regression/apps/signal_c/Makefile
@@ -2,4 +2,4 @@
 
 include ../test_common.mk
 
-EXTRA_C_FLAGS :=-static
+EXTRA_C_FLAGS := -static
diff --git a/regression/apps/test_common.mk b/regression/apps/test_common.mk
index 8799e4f7d..373f7fc79 100644
--- a/regression/apps/test_common.mk
+++ b/regression/apps/test_common.mk
@@ -4,25 +4,30 @@ MAIN_MAKEFILE := $(firstword $(MAKEFILE_LIST))
 INCLUDE_MAKEFILE := $(lastword $(MAKEFILE_LIST))
 CUR_DIR := $(shell dirname $(realpath $(MAIN_MAKEFILE)))
 CUR_DIR_NAME := $(shell basename $(realpath $(CUR_DIR)))
-REGRESSION_BUILD_DIR := $(CUR_DIR)/../../build/initramfs/regression
-OBJ_OUTPUT_DIR := $(REGRESSION_BUILD_DIR)/$(CUR_DIR_NAME)
+BUILD_DIR := $(CUR_DIR)/../../build
+OBJ_OUTPUT_DIR := $(BUILD_DIR)/initramfs/regression/$(CUR_DIR_NAME)
+DEP_OUTPUT_DIR := $(BUILD_DIR)/dep/$(CUR_DIR_NAME)
 C_SRCS := $(wildcard *.c)
 C_OBJS := $(addprefix $(OBJ_OUTPUT_DIR)/,$(C_SRCS:%.c=%))
+C_DEPS := $(addprefix $(DEP_OUTPUT_DIR)/,$(C_SRCS:%.c=%.d))
 ASM_SRCS := $(wildcard *.s)
 ASM_OBJS := $(addprefix $(OBJ_OUTPUT_DIR)/,$(ASM_SRCS:%.s=%))
 CC := gcc
 C_FLAGS :=
 
 .PHONY: all
-all: $(OBJ_OUTPUT_DIR) $(C_OBJS) $(ASM_OBJS)
+all: $(C_OBJS) $(ASM_OBJS)
 
-$(OBJ_OUTPUT_DIR):
-	@mkdir -p $(OBJ_OUTPUT_DIR)
+$(OBJ_OUTPUT_DIR) $(DEP_OUTPUT_DIR):
+	@mkdir -p $@
 
-$(CUR_DIR)/../../build/initramfs/regression/$(CUR_DIR_NAME)/%: %.c
-	@$(CC) $(C_FLAGS) $(EXTRA_C_FLAGS) $< -o $@
+$(OBJ_OUTPUT_DIR)/%: %.c | $(OBJ_OUTPUT_DIR) $(DEP_OUTPUT_DIR)
+	@$(CC) $(C_FLAGS) $(EXTRA_C_FLAGS) $< -o $@ \
+		-MMD -MF $(DEP_OUTPUT_DIR)/$*.d
 	@echo "CC <= $@"
 
-$(CUR_DIR)/../../build/initramfs/regression/$(CUR_DIR_NAME)/%: %.s
+-include $(C_DEPS)
+
+$(OBJ_OUTPUT_DIR)/%: %.s | $(OBJ_OUTPUT_DIR)
 	@$(CC) $(C_FLAGS) $(EXTRA_C_FLAGS) $< -o $@
 	@echo "CC <= $@"