overlayfs-tools: add new recipe

This package provides maintenance tools for OverlayFS, such as vacuum,
diff, merge, and deref

Signed-off-by: Vyacheslav Yurkov <Vyacheslav.Yurkov@bruker.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-filesystems/recipes-utils/overlayfs/overlayfs-tools/0001-Fixed-includes-so-that-it-compiles-on-Ubuntu-20.04.patch

@@ -0,0 +1,41 @@
+From 81b4fbb5f52044cb348534c23f10b3884972b09b Mon Sep 17 00:00:00 2001
+From: Beat Schaer <beat.schaer@wabtec.com>
+Date: Fri, 19 Mar 2021 08:18:58 +0100
+Subject: [PATCH] Fixed includes so that it compiles on Ubuntu 20.04
+
+---
+ logic.c | 3 +--
+ main.c  | 3 ++-
+ 2 files changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/logic.c b/logic.c
+index 97767f5..47ebfaa 100644
+--- a/logic.c
++++ b/logic.c
+@@ -7,8 +7,7 @@
+ #include <string.h>
+ #include <errno.h>
+ #include <unistd.h>
+-#include <attr/xattr.h>
+-#include <attr/attributes.h>
++#include <sys/xattr.h>
+ #include <fts.h>
+ #include <libgen.h>
+ #include "logic.h"
+diff --git a/main.c b/main.c
+index aa11239..f462b98 100644
+--- a/main.c
++++ b/main.c
+@@ -12,7 +12,8 @@
+ #include <linux/limits.h>
+ #include <stdbool.h>
+ #include <sys/stat.h>
+-#include <attr/xattr.h>
++#include <sys/xattr.h>
++#include <errno.h>
+ #ifndef _SYS_STAT_H
+   #include <linux/stat.h>
+ #endif
+-- 
+2.25.1
+

meta-filesystems/recipes-utils/overlayfs/overlayfs-tools/0002-makefile-fix-linking-flags.patch

@@ -0,0 +1,31 @@
+From b4ff5886797e72d1c21da43261ca7648412f3186 Mon Sep 17 00:00:00 2001
+From: Vyacheslav Yurkov <Vyacheslav.Yurkov@bruker.com>
+Date: Mon, 23 May 2022 19:53:21 +0200
+Subject: [PATCH] makefile: fix linking flags
+
+LDLIBS should be placed at the end according to
+https://www.gnu.org/software/make/manual/html_node/Catalogue-of-Rules.html
+
+Signed-off-by: Vyacheslav Yurkov <Vyacheslav.Yurkov@bruker.com>
+---
+ makefile | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/makefile b/makefile
+index fb1bed4..038c7ce 100644
+--- a/makefile
++++ b/makefile
+@@ -1,11 +1,11 @@
+ CFLAGS = -Wall -std=c99
+-LFLAGS = -lm
++LDLIBS = -lm
+ CC = gcc
+ 
+ all: overlay
+ 
+ overlay: main.o logic.o sh.o
+-	$(CC) $(LFLAGS) main.o logic.o sh.o -o overlay
++	$(CC) main.o logic.o sh.o -o overlay $(LDLIBS) 
+ 
+ main.o: main.c logic.h
+ 	$(CC) $(CFLAGS) -c main.c

meta-filesystems/recipes-utils/overlayfs/overlayfs-tools_git.bb

@@ -0,0 +1,34 @@
+DESCRIPTION = "Maintenance tools for OverlayFS"
+HOMEPAGE = "https://github.com/kmxz/overlayfs-tools"
+LICENSE = "WTFPL"
+LIC_FILES_CHKSUM = "file://LICENSE.txt;md5=f312a7c4d02230e8f2b537295d375c69"
+
+SRC_URI = "\
+    git://github.com/kmxz/overlayfs-tools.git;protocol=https;branch=master \
+    file://0001-Fixed-includes-so-that-it-compiles-on-Ubuntu-20.04.patch \
+    file://0002-makefile-fix-linking-flags.patch \
+"
+
+PV = "1.0+git${SRCPV}"
+SRCREV = "291c7f4a3fb548d06c572700650c2e3bccb0cd27"
+
+S = "${WORKDIR}/git"
+B = "${S}"
+
+DEPENDS += "attr"
+# Required to have the fts.h header for musl
+DEPENDS:append:libc-musl = " fts"
+
+EXTRA_OEMAKE += "'CC=${CC} -O2'"
+# Fix the missing fts libs when using musl
+EXTRA_OEMAKE:append:libc-musl = " LDLIBS=-lfts"
+TARGET_CC_ARCH += "${LDFLAGS}"
+
+do_compile () {
+    oe_runmake
+}
+
+do_install () {
+    install -d ${D}${bindir}
+    install -m 0755 ${B}/overlay ${D}${bindir}
+}