For some time now I do see the following, when I compile x86-softmmu on s390:
FAILED: libcommon.fa.p/hw_intc_i8259.c.o
cc -Ilibcommon.fa.p -I. -I.. -Iqapi -Itrace -Iui -Iui/shader
-I/usr/include/capstone -I/usr/include/glib-2.0
-I/usr/lib64/glib-2.0/include -I/usr/include/libmount -I/usr/include/blkid
-I/usr/include/gio-unix-2.0 -I/usr/include/libusb-1.0
-I/usr/include/vte-2.91 -I/usr/include/pango-1.0 -I/usr/include/harfbuzz
-I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/fribidi
-I/usr/include/libxml2 -I/usr/include/cairo -I/usr/include/pixman-1
-I/usr/include/gtk-3.0 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/atk-1.0
-I/usr/include/at-spi2-atk/2.0 -I/usr/include/dbus-1.0
-I/usr/lib64/dbus-1.0/include -I/usr/include/at-spi-2.0 -I/usr/include/virgl
-I/usr/include/p11-kit-1 -I/usr/include/SDL2 -I/usr/include/cacard
-I/usr/include/nss3 -I/usr/include/nspr4 -I/usr/include/slirp
-fdiagnostics-color=auto -pipe -Wall -Winvalid-pch -Werror -std=gnu99 -O2 -g
-isystem /home/cborntra/REPOS/qemu/linux-headers -isystem linux-headers
-iquote . -iquote /home/cborntra/REPOS/qemu -iquote
/home/cborntra/REPOS/qemu/include -iquote
/home/cborntra/REPOS/qemu/disas/libvixl -iquote
/home/cborntra/REPOS/qemu/tcg/s390 -iquote
/home/cborntra/REPOS/qemu/accel/tcg -pthread -U_FORTIFY_SOURCE
-D_FORTIFY_SOURCE=2 -m64 -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 -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 -DSTRUCT_IOVEC_DEFINED
-D_REENTRANT -Wno-undef -D_DEFAULT_SOURCE -D_XOPEN_SOURCE=600
-DNCURSES_WIDECHAR -MD -MQ libcommon.fa.p/hw_intc_i8259.c.o -MF
libcommon.fa.p/hw_intc_i8259.c.o.d -o libcommon.fa.p/hw_intc_i8259.c.o -c
../hw/intc/i8259.c
../hw/intc/i8259.c: In function ‘pic_read_irq’:
../hw/intc/i8259.c:203:13: error: ‘irq2’ may be used uninitialized in this
function [-Werror=maybe-uninitialized]
203 | irq = irq2 + 8;
| ~~~~^~~~~~~~~~
cc1: all warnings being treated as errors
Due to other compile warnings I find this hard to bisect. Has anyone seen
this as well?