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* [meta-virtualization][PATCH] lxc: backport fixes to build with glibc 2.43
@ 2026-03-14  7:14 Viswanath Kraleti
  2026-03-14 15:17 ` Bruce Ashfield
  0 siblings, 1 reply; 2+ messages in thread
From: Viswanath Kraleti @ 2026-03-14  7:14 UTC (permalink / raw)
  To: meta-virtualization; +Cc: Viswanath Kraleti

Building lxc with glibc 2.43 fails due to stricter header checks and
FORTIFY related validations.

Backport the following upstream fixes to resolve these build failures:
  - meson.build: fix open_how include handling for glibc 2.43+
  - meson.build: fix openat2 include typo exposed by glibc 2.43 + FORTIFY

Signed-off-by: Viswanath Kraleti <viswanath.kraleti@oss.qualcomm.com>
---
 ...fix-open_how-include-with-glibc-2.43.patch | 40 +++++++++++++++++++
 ...openat2-include-typo-fix-with-glibc-.patch | 29 ++++++++++++++
 recipes-containers/lxc/lxc_git.bb             |  2 +
 3 files changed, 71 insertions(+)
 create mode 100644 recipes-containers/lxc/files/0001-meson.build-fix-open_how-include-with-glibc-2.43.patch
 create mode 100644 recipes-containers/lxc/files/0001-meson.build-fix-openat2-include-typo-fix-with-glibc-.patch

diff --git a/recipes-containers/lxc/files/0001-meson.build-fix-open_how-include-with-glibc-2.43.patch b/recipes-containers/lxc/files/0001-meson.build-fix-open_how-include-with-glibc-2.43.patch
new file mode 100644
index 00000000..1b3d4de6
--- /dev/null
+++ b/recipes-containers/lxc/files/0001-meson.build-fix-open_how-include-with-glibc-2.43.patch
@@ -0,0 +1,40 @@
+From 388a511a7070d1ea9c6b8d2d98e6fa9a3efb0e87 Mon Sep 17 00:00:00 2001
+From: Li Lu <1487442471@qq.com>
+Date: Wed, 18 Feb 2026 09:24:26 +0800
+Subject: [PATCH] meson.build: fix open_how include with glibc-2.43+
+
+Signed-off-by: Li Lu <1487442471@qq.com>
+Upstream-Status: Backport [https://github.com/lxc/lxc/commit/5e68a7a633659039d9b114d2b75fdba0df51e52c]
+---
+ meson.build          | 1 +
+ src/lxc/open_utils.h | 2 ++
+ 2 files changed, 3 insertions(+)
+
+diff --git a/meson.build b/meson.build
+index 31f5472c5..637ee9873 100644
+--- a/meson.build
++++ b/meson.build
+@@ -664,6 +664,7 @@ endforeach
+ 
+ ## Types.
+ decl_headers = '''
++#include <fcntl.h>
+ #include <uchar.h>
+ #include <sys/mount.h>
+ #include <sys/stat.h>
+diff --git a/src/lxc/open_utils.h b/src/lxc/open_utils.h
+index 7ff5945c7..c9b978dbf 100644
+--- a/src/lxc/open_utils.h
++++ b/src/lxc/open_utils.h
+@@ -25,6 +25,8 @@ struct open_how {
+ 	__u64 mode;
+ 	__u64 resolve;
+ };
++#else
++#include <fcntl.h>
+ #endif
+ 
+ /* how->resolve flags for openat2(2). */
+-- 
+2.34.1
+
diff --git a/recipes-containers/lxc/files/0001-meson.build-fix-openat2-include-typo-fix-with-glibc-.patch b/recipes-containers/lxc/files/0001-meson.build-fix-openat2-include-typo-fix-with-glibc-.patch
new file mode 100644
index 00000000..d84f17c7
--- /dev/null
+++ b/recipes-containers/lxc/files/0001-meson.build-fix-openat2-include-typo-fix-with-glibc-.patch
@@ -0,0 +1,29 @@
+From 66ca3b2dee22d2d256e74ec55de2e5b0c975037c Mon Sep 17 00:00:00 2001
+From: Joonas Niilola <juippis@gentoo.org>
+Date: Sun, 15 Feb 2026 17:42:39 +0200
+Subject: [PATCH] meson.build: fix openat2 include typo, fix with glibc-2.43
+ +FORTIFY
+
+Closes: https://github.com/lxc/lxc/issues/4641
+Signed-off-by: Joonas Niilola <juippis@gentoo.org>
+Upstream-Status: Backport [https://github.com/lxc/lxc/commit/511e4db8f2a5b47cdd41eef482647492ce5b0f77]
+---
+ meson.build | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/meson.build b/meson.build
+index 637ee9873..a6bb21a94 100644
+--- a/meson.build
++++ b/meson.build
+@@ -557,7 +557,7 @@ foreach ident: [
+     ['move_mount',        '''#include <sys/mount.h>'''],
+     ['openat2',           '''#include <sys/types.h>
+                              #include <sys/stat.h>
+-                             #include <fctnl.h>'''],
++                             #include <fcntl.h>'''],
+     ['open_tree',         '''#include <sys/mount.h>'''],
+     ['personality',       '''#include <sys/personality.h>'''],
+     ['pidfd_open',        '''#include <stdlib.h>
+-- 
+2.34.1
+
diff --git a/recipes-containers/lxc/lxc_git.bb b/recipes-containers/lxc/lxc_git.bb
index 04db2ac0..0b6cbb75 100644
--- a/recipes-containers/lxc/lxc_git.bb
+++ b/recipes-containers/lxc/lxc_git.bb
@@ -46,6 +46,8 @@ SRC_URI = "git://github.com/lxc/lxc.git;branch=stable-6.0;protocol=https \
 	file://tests-our-init-is-not-busybox.patch \
 	file://0001-template-if-busybox-contains-init-use-it-in-containe.patch \
 	file://0001-build-Check-if-P_PIDFD-is-defined.patch \
+        file://0001-meson.build-fix-openat2-include-typo-fix-with-glibc-.patch \
+        file://0001-meson.build-fix-open_how-include-with-glibc-2.43.patch \
 	file://dnsmasq.conf \
 	file://lxc-net \
 	"


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2026-03-14  7:14 [meta-virtualization][PATCH] lxc: backport fixes to build with glibc 2.43 Viswanath Kraleti
2026-03-14 15:17 ` Bruce Ashfield

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