app-emulation/libvirt: fix build w/ glibc 2.36

Closes: https://bugs.gentoo.org/863446
Signed-off-by: Sam James <sam@gentoo.org>

2 files changed, 68 insertions, 0 deletions

diff --git a/app-emulation/libvirt/files/libvirt-8.5.0-glibc-2.36.patch b/app-emulation/libvirt/files/libvirt-8.5.0-glibc-2.36.patch
new file mode 100644
index 000000000000..e02c5ea44086
--- /dev/null
+++ b/app-emulation/libvirt/files/libvirt-8.5.0-glibc-2.36.patch
@@ -0,0 +1,67 @@
+https://bugs.gentoo.org/863446
+https://github.com/libvirt/libvirt/commit/9493c9b79dc541ec9e0fd73c6d87bdf8d30aaa90
+https://github.com/libvirt/libvirt/commit/c0d9adf220dc0d223330a7bac37b174132d330ba
+
+From 9493c9b79dc541ec9e0fd73c6d87bdf8d30aaa90 Mon Sep 17 00:00:00 2001
+From: Cole Robinson <crobinso@redhat.com>
+Date: Mon, 1 Aug 2022 15:20:38 -0400
+Subject: [PATCH] lxc: containter: fix build with glibc 2.36
+
+With glibc 2.36, sys/mount.h and linux/mount.h conflict:
+https://sourceware.org/glibc/wiki/Release/2.36#Usage_of_.3Clinux.2Fmount.h.3E_and_.3Csys.2Fmount.h.3E
+
+lxc_container.c imports sys/mount.h and linux/fs.h, which pulls in
+linux/mount.h.
+
+linux/fs.h isn't required here though. glibc sys/mount.h has had
+MS_MOVE since 2.12 in 2010
+
+Reviewed-by: Erik Skultety <eskultet@redhat.com>
+Signed-off-by: Cole Robinson <crobinso@redhat.com>
+--- a/src/lxc/lxc_container.c
++++ b/src/lxc/lxc_container.c
+@@ -33,9 +33,6 @@
+ /* Yes, we want linux private one, for _syscall2() macro */
+ #include <linux/unistd.h>
+ 
+-/* For MS_MOVE */
+-#include <linux/fs.h>
+-
+ #if WITH_CAPNG
+ # include <cap-ng.h>
+ #endif
+
+From c0d9adf220dc0d223330a7bac37b174132d330ba Mon Sep 17 00:00:00 2001
+From: Cole Robinson <crobinso@redhat.com>
+Date: Mon, 1 Aug 2022 15:24:01 -0400
+Subject: [PATCH] virfile: Fix build with glibc 2.36
+
+With glibc 2.36, sys/mount.h and linux/mount.h conflict:
+https://sourceware.org/glibc/wiki/Release/2.36#Usage_of_.3Clinux.2Fmount.h.3E_and_.3Csys.2Fmount.h.3E
+
+virfile.c imports sys/mount.h and linux/fs.h, which pulls in
+linux/mount.h.
+
+Manually define the constants we need from linux/fs.h, like was
+done in llvm:
+
+https://reviews.llvm.org/rGb379129c4beb3f26223288627a1291739f33af02
+
+Reviewed-by: Erik Skultety <eskultet@redhat.com>
+Signed-off-by: Cole Robinson <crobinso@redhat.com>
+--- a/src/util/virfile.c
++++ b/src/util/virfile.c
+@@ -71,7 +71,11 @@
+ # endif
+ # include <sys/ioctl.h>
+ # include <linux/cdrom.h>
+-# include <linux/fs.h>
++/* These come from linux/fs.h, but that header conflicts with
++ * sys/mount.h on glibc 2.36+ */
++# define FS_IOC_GETFLAGS _IOR('f', 1, long)
++# define FS_IOC_SETFLAGS _IOW('f', 2, long)
++# define FS_NOCOW_FL 0x00800000
+ #endif
+ 
+ #if WITH_LIBATTR
+
diff --git a/app-emulation/libvirt/libvirt-8.5.0.ebuild b/app-emulation/libvirt/libvirt-8.5.0.ebuild
index 1ac6f7431bdb..f81dbc7d518b 100644
--- a/app-emulation/libvirt/libvirt-8.5.0.ebuild
+++ b/app-emulation/libvirt/libvirt-8.5.0.ebuild
@@ -137,6 +137,7 @@ PATCHES=(
 	"${FILESDIR}"/${PN}-6.0.0-fix_paths_in_libvirt-guests_sh.patch
 	"${FILESDIR}"/${PN}-8.2.0-do-not-use-sysconfig.patch
 	"${FILESDIR}"/${PN}-8.2.0-fix-paths-for-apparmor.patch
+	"${FILESDIR}"/${PN}-8.5.0-glibc-2.36.patch
 )
 
 pkg_setup() {