diff --git a/.gitignore b/.gitignore
index 941b7af..6c03106 100644
--- a/.gitignore
+++ b/.gitignore
@@ -34,6 +34,9 @@
 /tests/test*.log
 /tests/test*.trs
 
+/build/*
+!/build/.keep
+
 /examples/assert_guards
 /examples/assert_simple
 /examples/cmdline
diff --git a/build/.keep b/build/.keep
new file mode 100644
index 0000000..e69de29
diff --git a/config/dev b/config/dev
index a80bf53..aab5181 100755
--- a/config/dev
+++ b/config/dev
@@ -4,4 +4,6 @@ set -e
 
 REPO="$(realpath "$(dirname "$(realpath "$0")")/..")"
 
+if [ -f "$REPO/Makefile" ]; then make -C "$REPO" distclean; fi
+
 "$REPO/configure" --enable-assert --enable-guard
diff --git a/config/i386 b/config/i386
index e9fbb16..fb3ce73 100755
--- a/config/i386
+++ b/config/i386
@@ -8,6 +8,8 @@ REPO="$(realpath "$(dirname "$(realpath "$0")")/..")"
 PREFIX="$REPO/vendor/cross"
 BIN="$PREFIX/bin"
 
+if [ -f "$REPO/Makefile" ]; then make -C "$REPO" distclean; fi
+
 export     AR="$BIN/$HOST-ar"
 export     CC="$BIN/$HOST-gcc"
 export RANLIB="$BIN/$HOST-ranlib"
diff --git a/config/x86_64 b/config/x86_64
index 2d9c211..74172e4 100755
--- a/config/x86_64
+++ b/config/x86_64
@@ -8,6 +8,8 @@ REPO="$(realpath "$(dirname "$(realpath "$0")")/..")"
 PREFIX="$REPO/vendor/cross"
 BIN="$PREFIX/bin"
 
+if [ -f "$REPO/Makefile" ]; then make -C "$REPO" distclean; fi
+
 export     AR="$BIN/$HOST-ar"
 export     CC="$BIN/$HOST-gcc"
 export RANLIB="$BIN/$HOST-ranlib"
diff --git a/config/x86_64-stivale2 b/config/x86_64-stivale2
new file mode 100755
index 0000000..74172e4
--- /dev/null
+++ b/config/x86_64-stivale2
@@ -0,0 +1,19 @@
+#!/bin/sh
+
+set -e
+
+ARCH='x86_64'
+HOST="$ARCH-elf"
+REPO="$(realpath "$(dirname "$(realpath "$0")")/..")"
+PREFIX="$REPO/vendor/cross"
+BIN="$PREFIX/bin"
+
+if [ -f "$REPO/Makefile" ]; then make -C "$REPO" distclean; fi
+
+export     AR="$BIN/$HOST-ar"
+export     CC="$BIN/$HOST-gcc"
+export RANLIB="$BIN/$HOST-ranlib"
+
+export CFLAGS='-ffreestanding -nostdlib -fno-builtin -fno-stack-protector'
+
+"$REPO/configure" --host="$HOST" --enable-assert --enable-guard --with-libc
diff --git a/examples/bootloader-multiboot2-grub/.gitignore b/examples/bootloader-multiboot2-grub/.gitignore
index 6631cd5..30152cb 100644
--- a/examples/bootloader-multiboot2-grub/.gitignore
+++ b/examples/bootloader-multiboot2-grub/.gitignore
@@ -1,3 +1,6 @@
+/build-libkernaux/*
+!/build-libkernaux/.keep
+
 /image.iso
 /output.txt
 /rootfs/boot/kernel
diff --git a/examples/bootloader-multiboot2-grub/Makefile b/examples/bootloader-multiboot2-grub/Makefile
index 3a642ee..9824809 100644
--- a/examples/bootloader-multiboot2-grub/Makefile
+++ b/examples/bootloader-multiboot2-grub/Makefile
@@ -5,11 +5,13 @@ CCPREFIX = ../../vendor/cross/bin/i386-elf-
 AS = $(CCPREFIX)as
 CC = $(CCPREFIX)gcc
 
+CONFIG_LIBKERNAUX = ../../config/i386
 DIFF = diff
 GRUB_FILE = grub-file
 GRUB_MKRESCUE = grub-mkrescue
 QEMU = qemu-system-i386
 
+BUILD_LIBKERNAUX = build-libkernaux
 EXPECTED = expected.txt
 IMAGE = image.iso
 LINKERSCR = linker.ld
@@ -39,15 +41,20 @@ run: $(IMAGE)
 	$(QEMU) -cdrom $< -serial stdio -display none | tee $(OUTPUT)
 
 clean:
+	make -C $(BUILD_LIBKERNAUX) distclean || true
 	rm -f $(OUTPUT) $(IMAGE) $(KERNEL) $(OBJS)
 
 $(IMAGE): $(GRUBCFG) $(KERNEL)
 	$(GRUB_MKRESCUE) $(ROOTFS) -o $@
 
-$(KERNEL): $(LINKERSCR) $(OBJS)
-	$(CC) -T $(LINKERSCR) -o $@ $(OBJS) -ffreestanding -nostdlib -lgcc -lkernaux -Wl,-L../..
+$(KERNEL): $(LINKERSCR) $(OBJS) build-libkernaux.a
+	$(CC) -T $(LINKERSCR) -o $@ $(OBJS) -ffreestanding -nostdlib -lgcc -lkernaux -Wl,-L$(BUILD_LIBKERNAUX)
 	$(GRUB_FILE) --is-x86-multiboot2 $@
 
+build-libkernaux.a:
+	cd $(BUILD_LIBKERNAUX) && ../$(CONFIG_LIBKERNAUX)
+	cd $(BUILD_LIBKERNAUX) && make libkernaux.a
+
 %.c.o: %.c
 	$(CC) -c $< -o $@ $(CFLAGS)
 
diff --git a/examples/bootloader-multiboot2-grub/build-libkernaux/.keep b/examples/bootloader-multiboot2-grub/build-libkernaux/.keep
new file mode 100644
index 0000000..e69de29
diff --git a/examples/bootloader-multiboot2-limine/.gitignore b/examples/bootloader-multiboot2-limine/.gitignore
index e59723f..9c867b4 100644
--- a/examples/bootloader-multiboot2-limine/.gitignore
+++ b/examples/bootloader-multiboot2-limine/.gitignore
@@ -1,3 +1,6 @@
+/build-libkernaux/*
+!/build-libkernaux/.keep
+
 /image.iso
 /output.txt
 /rootfs/boot/kernel
diff --git a/examples/bootloader-multiboot2-limine/Makefile b/examples/bootloader-multiboot2-limine/Makefile
index 4e296b1..8a2e536 100644
--- a/examples/bootloader-multiboot2-limine/Makefile
+++ b/examples/bootloader-multiboot2-limine/Makefile
@@ -5,12 +5,14 @@ CCPREFIX = ../../vendor/cross/bin/i386-elf-
 AS = $(CCPREFIX)as
 CC = $(CCPREFIX)gcc
 
+CONFIG_LIBKERNAUX = ../../config/i386
 DIFF = diff
 GRUB_FILE = grub-file
 LIMINE = ../../vendor/limine/build/bin
 QEMU = qemu-system-x86_64
 XORRISO = xorriso
 
+BUILD_LIBKERNAUX = build-libkernaux
 EXPECTED = expected.txt
 IMAGE = image.iso
 LINKERSCR = linker.ld
@@ -54,14 +56,15 @@ run: $(IMAGE)
 	$(QEMU) -cdrom $< -serial stdio -display none | tee $(OUTPUT)
 
 clean:
+	make -C $(BUILD_LIBKERNAUX) distclean || true
 	rm -f $(OUTPUT) $(IMAGE) $(FULL_KERNEL) $(FULL_LIMINE_CD) $(FULL_LIMINE_ELTORITO) $(FULL_LIMINE_SYS) $(OBJS)
 
 $(IMAGE): $(FULL_KERNEL) $(FULL_LIMINE_CD) $(FULL_LIMINE_ELTORITO) $(FULL_LIMINE_SYS)
 	$(XORRISO) -as mkisofs -b $(REL_LIMINE_CD) -no-emul-boot -boot-load-size 4 -boot-info-table --efi-boot $(REL_LIMINE_ELTORITO) -efi-boot-part --efi-boot-image --protective-msdos-label $(ROOTFS) -o $@
 	$(LIMINE_INSTALL) $@
 
-$(FULL_KERNEL): $(LINKERSCR) $(OBJS)
-	$(CC) -T $(LINKERSCR) -o $@ $(OBJS) -ffreestanding -nostdlib -lgcc -lkernaux -Wl,-L../..
+$(FULL_KERNEL): $(LINKERSCR) $(OBJS) build-libkernaux.a
+	$(CC) -T $(LINKERSCR) -o $@ $(OBJS) -ffreestanding -nostdlib -lgcc -lkernaux -Wl,-L$(BUILD_LIBKERNAUX)
 	$(GRUB_FILE) --is-x86-multiboot2 $@
 
 $(FULL_LIMINE_CD):
@@ -73,6 +76,10 @@ $(FULL_LIMINE_ELTORITO):
 $(FULL_LIMINE_SYS):
 	cp -f $(LIMINE_SYS) $(FULL_LIMINE_SYS)
 
+build-libkernaux.a:
+	cd $(BUILD_LIBKERNAUX) && ../$(CONFIG_LIBKERNAUX)
+	cd $(BUILD_LIBKERNAUX) && make libkernaux.a
+
 %.c.o: %.c
 	$(CC) -c $< -o $@ $(CFLAGS)
 
diff --git a/examples/bootloader-multiboot2-limine/build-libkernaux/.keep b/examples/bootloader-multiboot2-limine/build-libkernaux/.keep
new file mode 100644
index 0000000..e69de29
diff --git a/examples/bootloader-stivale2-limine/.gitignore b/examples/bootloader-stivale2-limine/.gitignore
index d9e790b..f4d8c1d 100644
--- a/examples/bootloader-stivale2-limine/.gitignore
+++ b/examples/bootloader-stivale2-limine/.gitignore
@@ -1,3 +1,6 @@
+/build-libkernaux/*
+!/build-libkernaux/.keep
+
 /image.iso
 /main.c.d
 /output.txt
diff --git a/examples/bootloader-stivale2-limine/Makefile b/examples/bootloader-stivale2-limine/Makefile
index b27f3fc..df57b3c 100644
--- a/examples/bootloader-stivale2-limine/Makefile
+++ b/examples/bootloader-stivale2-limine/Makefile
@@ -5,11 +5,13 @@ CCPREFIX = ../../vendor/cross/bin/x86_64-elf-
 AS = $(CCPREFIX)as
 CC = $(CCPREFIX)gcc
 
+CONFIG_LIBKERNAUX = ../../config/x86_64-stivale2
 DIFF = diff
 LIMINE = ../../vendor/limine/build/bin
 QEMU = qemu-system-x86_64
 XORRISO = xorriso
 
+BUILD_LIBKERNAUX = build-libkernaux
 EXPECTED = expected.txt
 IMAGE = image.iso
 LINKERSCR = linker.ld
@@ -63,14 +65,15 @@ run: $(IMAGE)
 	$(QEMU) -cdrom $< -serial stdio -display none | tee $(OUTPUT)
 
 clean:
+	make -C $(BUILD_LIBKERNAUX) distclean || true
 	rm -f $(OUTPUT) $(IMAGE) $(FULL_KERNEL) $(FULL_LIMINE_CD) $(FULL_LIMINE_ELTORITO) $(FULL_LIMINE_SYS) $(OBJS)
 
 $(IMAGE): $(FULL_KERNEL) $(FULL_LIMINE_CD) $(FULL_LIMINE_ELTORITO) $(FULL_LIMINE_SYS)
 	$(XORRISO) -as mkisofs -b $(REL_LIMINE_CD) -no-emul-boot -boot-load-size 4 -boot-info-table --efi-boot $(REL_LIMINE_ELTORITO) -efi-boot-part --efi-boot-image --protective-msdos-label $(ROOTFS) -o $@
 	$(LIMINE_INSTALL) $@
 
-$(FULL_KERNEL): $(LINKERSCR) $(OBJS)
-	$(CC) -T $(LINKERSCR) -o $@ $(OBJS) -ffreestanding -nostdlib -zmax-page-size=0x1000 -static -lgcc # -lkernaux -Wl,-L../..
+$(FULL_KERNEL): $(LINKERSCR) $(OBJS) build-libkernaux.a
+	$(CC) -T $(LINKERSCR) -o $@ $(OBJS) -ffreestanding -nostdlib -zmax-page-size=0x1000 -static -lgcc -lkernaux -Wl,-L$(BUILD_LIBKERNAUX)
 
 $(FULL_LIMINE_CD):
 	cp -f $(LIMINE_CD) $(FULL_LIMINE_CD)
@@ -81,6 +84,10 @@ $(FULL_LIMINE_ELTORITO):
 $(FULL_LIMINE_SYS):
 	cp -f $(LIMINE_SYS) $(FULL_LIMINE_SYS)
 
+build-libkernaux.a:
+	cd $(BUILD_LIBKERNAUX) && ../$(CONFIG_LIBKERNAUX)
+	cd $(BUILD_LIBKERNAUX) && make libkernaux.a
+
 %.c.o: %.c
 	$(CC) -c $< -o $@ $(CFLAGS)
 
diff --git a/examples/bootloader-stivale2-limine/build-libkernaux/.keep b/examples/bootloader-stivale2-limine/build-libkernaux/.keep
new file mode 100644
index 0000000..e69de29