diff --git a/Makefile b/Makefile
index f475a8f..59a9995 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,13 @@
-all:
-	chmod +x build.sh
-	./build.sh rootfs
+objects = coreutils console-tools networking miscutils
+
+CFLAGS?=-s -Os -flto -pedantic -Wall -Wextra
+CC?=cc
+
+all: $(objects)
+
+$(objects):
+	echo MAKE $@
+	cd $@ && $(MAKE) -B CC="$(CC)" CFLAGS="$(CFLAGS)" && cd ..
 
 clean:
-	./build.sh clean
+	rm bin/*
diff --git a/build.sh b/build.sh
deleted file mode 100755
index 683b4d2..0000000
--- a/build.sh
+++ /dev/null
@@ -1,25 +0,0 @@
-#!/bin/sh
-if [ -z $CC ]; then
-	CC=cc
-fi
-if [ -z $CFLAGS ]; then
-	CFLAGS="-s -Os -pedantic -Wall -Wextra"
-fi
-if [ -z $1 ]; then
-	echo $0 "[rootfs / clean]"
-	exit
-fi
-
-echo "ENV: CC: " $CC "| CFLAGS: " $CFLAGS
-
-if [ $1 = "clean" ]; then
-	rm bin/*
-elif [ $1 = "rootfs" ]; then
-	applets="coreutils/* miscutils/* console-tools/* networking/*"
-	for i in $applets; do
-		echo CC $i
-		$CC $CFLAGS $i -o $(echo bin/$(basename $i .c))
-	done
-else
-	echo $0 "[rootfs / clean]"
-fi
diff --git a/console-tools/Makefile b/console-tools/Makefile
new file mode 100644
index 0000000..76c8c29
--- /dev/null
+++ b/console-tools/Makefile
@@ -0,0 +1,11 @@
+C_SOURCES:=$(wildcard ./*.c)
+C_TARGETS:=$(patsubst ./%.c, ../bin/%, $(C_SOURCES))
+TARGETS:=$(C_TARGETS)
+
+CFLAGS?=-s -Os -flto -pedantic -Wall -Wextra
+CC?=cc
+
+all: ../bin $(TARGETS)
+
+../bin/%: %.c
+	$(CC) $(CFLAGS) -o $@ $<
diff --git a/coreutils/Makefile b/coreutils/Makefile
new file mode 100644
index 0000000..76c8c29
--- /dev/null
+++ b/coreutils/Makefile
@@ -0,0 +1,11 @@
+C_SOURCES:=$(wildcard ./*.c)
+C_TARGETS:=$(patsubst ./%.c, ../bin/%, $(C_SOURCES))
+TARGETS:=$(C_TARGETS)
+
+CFLAGS?=-s -Os -flto -pedantic -Wall -Wextra
+CC?=cc
+
+all: ../bin $(TARGETS)
+
+../bin/%: %.c
+	$(CC) $(CFLAGS) -o $@ $<
diff --git a/miscutils/Makefile b/miscutils/Makefile
new file mode 100644
index 0000000..76c8c29
--- /dev/null
+++ b/miscutils/Makefile
@@ -0,0 +1,11 @@
+C_SOURCES:=$(wildcard ./*.c)
+C_TARGETS:=$(patsubst ./%.c, ../bin/%, $(C_SOURCES))
+TARGETS:=$(C_TARGETS)
+
+CFLAGS?=-s -Os -flto -pedantic -Wall -Wextra
+CC?=cc
+
+all: ../bin $(TARGETS)
+
+../bin/%: %.c
+	$(CC) $(CFLAGS) -o $@ $<
diff --git a/networking/Makefile b/networking/Makefile
new file mode 100644
index 0000000..76c8c29
--- /dev/null
+++ b/networking/Makefile
@@ -0,0 +1,11 @@
+C_SOURCES:=$(wildcard ./*.c)
+C_TARGETS:=$(patsubst ./%.c, ../bin/%, $(C_SOURCES))
+TARGETS:=$(C_TARGETS)
+
+CFLAGS?=-s -Os -flto -pedantic -Wall -Wextra
+CC?=cc
+
+all: ../bin $(TARGETS)
+
+../bin/%: %.c
+	$(CC) $(CFLAGS) -o $@ $<