fresh compile of latest RELEASE 4.16

[Juergen Schinker <ba1020@xxxxxxxxxxxxx>]

[593/2436] Compiling C object libqemuutil.a.p/util_qemu-thread-posix.c.o
FAILED: libqemuutil.a.p/util_qemu-thread-posix.c.o
cc -Ilibqemuutil.a.p -I. -I../qemu-xen-dir-remote -Isubprojects/libvhost-user 
-I../qemu-xen-dir-remote/subprojects/libvhost-user -Itrace -Iqapi -Iui 
-Iui/shader -I/usr/include/libmount -I/usr/include/blkid 
-I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include 
-I/usr/include/gio-unix-2.0 -I/usr/include/p11-kit-1 -I/usr/include/pixman-1 
-fdiagnostics-color=auto -pipe -Wall -Winvalid-pch -Werror -std=gnu11 -O2 -g 
-isystem /home/adminjs/xen/tools/qemu-xen-dir-remote/linux-headers -isystem 
linux-headers -iquote . -iquote /home/adminjs/xen/tools/qemu-xen-dir-remote 
-iquote /home/adminjs/xen/tools/qemu-xen-dir-remote/include -iquote 
/home/adminjs/xen/tools/qemu-xen-dir-remote/disas/libvixl -iquote 
/home/adminjs/xen/tools/qemu-xen-dir-remote/tcg/i386 -pthread -U_FORTIFY_SOURCE 
-D_FORTIFY_SOURCE=2 -m64 -mcx16 -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 
-D_LARGEFILE_SOURCE -Wstrict-prototypes -Wredundant-decls -Wundef 
-Wwrite-strings -Wmissing-prototypes -fno-strict-aliasing -fno-common -fwrapv 
-DXC_WANT_COMPAT_EVTCHN_API=1 -DXC_WANT_COMPAT_GNTTAB_API=1 
-DXC_WANT_COMPAT_MAP_FOREIGN_API=1 -DXC_WANT_COMPAT_DEVICEMODEL_API=1 
-Wold-style-declaration -Wold-style-definition -Wtype-limits -Wformat-security 
-Wformat-y2k -Winit-self -Wignored-qualifiers -Wempty-body -Wnested-externs 
-Wendif-labels -Wexpansion-to-defined -Wimplicit-fallthrough=2 
-Wno-missing-include-dirs -Wno-shift-negative-value -Wno-psabi 
-fstack-protector-strong -fPIC -MD -MQ 
libqemuutil.a.p/util_qemu-thread-posix.c.o -MF 
libqemuutil.a.p/util_qemu-thread-posix.c.o.d -o 
libqemuutil.a.p/util_qemu-thread-posix.c.o -c 
../qemu-xen-dir-remote/util/qemu-thread-posix.c
In file included from /usr/include/glib-2.0/glib/deprecated/gthread.h:124,
                 from /usr/include/glib-2.0/glib.h:112,
                 from 
/home/adminjs/xen/tools/qemu-xen-dir-remote/include/glib-compat.h:32,
                 from 
/home/adminjs/xen/tools/qemu-xen-dir-remote/include/qemu/osdep.h:132,
                 from ../qemu-xen-dir-remote/util/qemu-thread-posix.c:13:
../qemu-xen-dir-remote/util/qemu-thread-posix.c: In function 
‘qemu_thread_start’:
../qemu-xen-dir-remote/util/qemu-thread-posix.c:540:5: error: ‘__sigsetjmp’ 
accessing 200 bytes in a region of size 72 [-Werror=stringop-overflow=]
  540 |     pthread_cleanup_push(qemu_thread_atexit_notify, NULL);
      |     ^~~~~~~~~~~~~~~~~~~~
../qemu-xen-dir-remote/util/qemu-thread-posix.c:540:5: note: referencing 
argument 1 of type ‘struct __jmp_buf_tag *’
/usr/include/pthread.h:734:12: note: in a call to function ‘__sigsetjmp’
  734 | extern int __sigsetjmp (struct __jmp_buf_tag *__env, int __savemask) 
__THROWNL;
      |            ^~~~~~~~~~~
cc1: all warnings being treated as errors
[594/2436] Compiling C object libqemuutil.a.p/util_transactions.c.o
[595/2436] Compiling C object libqemuutil.a.p/qapi_string-output-visitor.c.o
[596/2436] Compiling C object 
libqemu-i386-softmmu.fa.p/target_i386_tcg_translate.c.o
ninja: build stopped: subcommand failed.
make: *** [Makefile:156: run-ninja] Error 1
make: Leaving directory '/home/adminjs/xen/tools/qemu-xen-build'
make[3]: *** [Makefile:212: subdir-all-qemu-xen-dir] Error 2
make[3]: Leaving directory '/home/adminjs/xen/tools'
make[2]: *** [/home/adminjs/xen/tools/../tools/Rules.mk:161: subdirs-install] 
Error 2
make[2]: Leaving directory '/home/adminjs/xen/tools'
make[1]: *** [Makefile:66: install] Error 2
make[1]: Leaving directory '/home/adminjs/xen/tools'
make: *** [Makefile:140: install-tools] Error 2




host                   : xen
release                : 5.14.0-4-amd64
version                : #1 SMP Debian 5.14.16-1 (2021-11-03)
machine                : x86_64
nr_cpus                : 4
max_cpu_id             : 3
nr_nodes               : 1
cores_per_socket       : 2
threads_per_core       : 2
cpu_mhz                : 2306.798
hw_caps                : 
bfebfbff:77bae3ff:28100800:00000001:00000001:00000281:00000000:00000100
virt_caps              : pv pv_directio shadow
total_memory           : 32711
free_memory            : 50
sharing_freed_memory   : 0
sharing_used_memory    : 0
outstanding_claims     : 0
free_cpus              : 0
xen_major              : 4
xen_minor              : 15
xen_extra              : .1
xen_version            : 4.15.1
xen_caps               : xen-3.0-x86_64
xen_scheduler          : credit2
xen_pagesize           : 4096
platform_params        : virt_start=0xffff800000000000
xen_changeset          : Fri Sep 10 09:03:24 2021 +0200 git:84fa99099b
xen_commandline        : placeholder sched=credit2
cc_compiler            : gcc (Debian 10.3.0-11) 10.3.0
cc_compile_by          : adminjs
cc_compile_domain      : homelinux.net
cc_compile_date        : Fri Oct  1 17:05:47 BST 2021
build_id               : f791a9b9747ac5630f01fdcd3797f58e8cffecb3
xend_config_format     : 4




can't overcome this as i know nothing about ninja

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