package/util-linux: fix LSMT_ROOT fallback definition

The fallback definition for LSMT_ROOT was incorrectly guarded
with #ifdef instead of #ifndef, making it ineffective. This caused
build issues on configurations with musl 1.2.6, which defines
SYS_statmount making util-linux consider statmount() as available, but
having older kernel headers, not providing LSMT_ROOT.

Fixes:

  http://autobuild.buildroot.net/results/ac2bc633db0c605564c79bfdfa0e257a9b4f1b28/

Signed-off-by: Shubham Chakraborty <chakrabortyshubham66@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit f0540ff531)
Signed-off-by: Thomas Perale <thomas.perale@mind.be>

package/util-linux/0001-include-mount-api-utils.h-fix-LSMT_ROOT-definition.patch

@@ -0,0 +1,44 @@
+From 72ff3b8998a675900fcb7c18c0e03f1552b13a8b Mon Sep 17 00:00:00 2001
+From: Shubham Chakraborty <chakrabortyshubham66@gmail.com>
+Date: Tue, 14 Apr 2026 11:04:08 +0530
+Subject: [PATCH] include/mount-api-utils.h: fix LSMT_ROOT definition
+
+Commit
+ded434a63f3eee7fd7805b18d6c9bb912016c3c8 ("include/mount-api-utils:
+add statmount and listmount") introduce a fallback definition for the
+LSMT_ROOT defined, but a small typo makes this fallback definition
+ineffective:
+
+ #ifdef LSMT_ROOT
+ # define LSMT_ROOT ...
+ #endif
+
+Should obviously have been:
+
+ #ifndef LSMT_ROOT
+ # define LSMT_ROOT ...
+ #endif
+
+Signed-off-by: Shubham Chakraborty <chakrabortyshubham66@gmail.com>
+Upstream: https://lore.kernel.org/util-linux/20260530094932.2351791-1-thomas.petazzoni@bootlin.com/T/#u
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
+---
+ include/mount-api-utils.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/include/mount-api-utils.h b/include/mount-api-utils.h
+index a916f99..87e173e 100644
+--- a/include/mount-api-utils.h
++++ b/include/mount-api-utils.h
+@@ -339,7 +339,7 @@ struct ul_statmount {
+ /*
+  * Special @mnt_id values that can be passed to listmount
+  */
+-#ifdef LSMT_ROOT
++#ifndef LSMT_ROOT
+ # define LSMT_ROOT              0xffffffffffffffff    /* root mount */
+ #endif
+ 
+-- 
+2.53.0
+

package/util-linux/util-linux-libs/0001-include-mount-api-utils.h-fix-LSMT_ROOT-definition.patch

@@ -0,0 +1,44 @@
+From 72ff3b8998a675900fcb7c18c0e03f1552b13a8b Mon Sep 17 00:00:00 2001
+From: Shubham Chakraborty <chakrabortyshubham66@gmail.com>
+Date: Tue, 14 Apr 2026 11:04:08 +0530
+Subject: [PATCH] include/mount-api-utils.h: fix LSMT_ROOT definition
+
+Commit
+ded434a63f3eee7fd7805b18d6c9bb912016c3c8 ("include/mount-api-utils:
+add statmount and listmount") introduce a fallback definition for the
+LSMT_ROOT defined, but a small typo makes this fallback definition
+ineffective:
+
+ #ifdef LSMT_ROOT
+ # define LSMT_ROOT ...
+ #endif
+
+Should obviously have been:
+
+ #ifndef LSMT_ROOT
+ # define LSMT_ROOT ...
+ #endif
+
+Signed-off-by: Shubham Chakraborty <chakrabortyshubham66@gmail.com>
+Upstream: https://lore.kernel.org/util-linux/20260530094932.2351791-1-thomas.petazzoni@bootlin.com/T/#u
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
+---
+ include/mount-api-utils.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/include/mount-api-utils.h b/include/mount-api-utils.h
+index a916f99..87e173e 100644
+--- a/include/mount-api-utils.h
++++ b/include/mount-api-utils.h
+@@ -339,7 +339,7 @@ struct ul_statmount {
+ /*
+  * Special @mnt_id values that can be passed to listmount
+  */
+-#ifdef LSMT_ROOT
++#ifndef LSMT_ROOT
+ # define LSMT_ROOT              0xffffffffffffffff    /* root mount */
+ #endif
+ 
+-- 
+2.53.0
+