!49 VFS_CAP_U32 can not ensure that XATTR_NAME_CAPS is defined, and failed to build

From: @yunjia_w 
Reviewed-by: @HuaxinLuGitee 
Signed-off-by: @HuaxinLuGitee

backport-libcap-Ensure-the-XATTR_NAME_CAPS-is-define.patch

@@ -0,0 +1,38 @@
+From 41997af6891658ab511c014e20f7846945c11742 Mon Sep 17 00:00:00 2001
+From: Roy Li <rongqing.li@windriver.com>
+Date: Mon, 9 Aug 2021 17:32:20 +0800
+Subject: [PATCH] [Backport] libcap: Ensure the XATTR_NAME_CAPS is defined when
+ it is used
+ 
+VFS_CAP_U32 can not ensure that XATTR_NAME_CAPS is defined, and failed to build
+libcap-native in old release, like CentOS release 6.7 (Final), with the blow
+error:
+     cap_file.c: In function ‘cap_get_fd’:
+     cap_file.c:199: error: ‘XATTR_NAME_CAPS’ undeclared (first use in this function)
+     cap_file.c:199: error: (Each undeclared identifier is reported only once
+Reference: http://cgit.openembedded.org/openembedded-core/tree/meta/recipes-support/libcap/files/0001-ensure-the-XATTR_NAME_CAPS-is-defined-when-it-is-use.patch
+ 
+Signed-off-by: Roy Li <rongqing.li@windriver.com>
+Signed-off-by: lichi <lichi7@huawei.com>
+Signed-off-by: luchangkun <luchangkun@h-partners.com>
+Signed-off-by: huangyaojun <huangyaojun@huawei.com>
+---
+ libcap/cap_file.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+ 
+diff --git a/libcap/cap_file.c b/libcap/cap_file.c
+index 4178705..1e6a28e 100644
+--- a/libcap/cap_file.c
++++ b/libcap/cap_file.c
+@@ -45,7 +45,7 @@ extern int fremovexattr(int, const char *);
+ 
+ #include "libcap.h"
+ 
+-#ifdef VFS_CAP_U32
++#if defined (VFS_CAP_U32) && defined (XATTR_NAME_CAPS)
+ 
+ #if VFS_CAP_U32 != __CAP_BLKS
+ # error VFS representation of capabilities is not the same size as kernel
+-- 
+2.27.0
+ 

libcap.spec

@@ -1,6 +1,6 @@
 Name:     libcap
 Version:  2.66
-Release:  2
+Release:  3
 Summary:  A library for getting and setting POSIX.1e draft 15 capabilities        
 License:  GPLv2
 URL:      https://sites.google.com/site/fullycapable
@@ -10,6 +10,7 @@ Patch0:   libcap-buildflags.patch
 Patch1:   backport-Correct-the-check-of-pthread_create-s-return-value.patch
 Patch2:   backport-Large-strings-can-confuse-libcap-s-internal-strdup-c.patch
 Patch3:   backport-There-was-a-small-memory-leak-in-pam_cap.so-when-lib.patch 
+Patch4:   backport-libcap-Ensure-the-XATTR_NAME_CAPS-is-define.patch 
 
 BuildRequires: libattr-devel pam-devel perl-interpreter gcc
 
@@ -73,6 +74,9 @@ chmod +x %{buildroot}/%{_libdir}/*.so.*
 %{_mandir}/man8/*.gz
 
 %changelog
+* Mon Jul 3 2023 wangyunjia <yunjia.wang@huawei.com> - 2.66-3
+- VFS_CAP_U32 can not ensure that XATTR_NAME_CAPS is defined, and failed to build
+
 * Mon Jan 30 2023 wangyunjia <yunjia.wang@huawei.com> - 2.66-2
 - fix CVE-2023-2602/CVE-2023-2603 && fix memory leaks