On Sat, Nov 7, 2026 at 1:27 AM Pierrick Bouvier
<[email protected]> wrote:
>
> On 11/6/2026 9:06 AM, Peter Maydell wrote:
> > On Fri, 6 Nov 2026 at 16:59, Pierrick Bouvier
> > <[email protected]> wrote:
> >>
> >> On 11/6/2026 7:58 AM, Peter Maydell wrote:
> >>> This reverts commit ab78ac76f44a1241e76fd32d248df62d83f1ea58.
> >>>
> >>> The change to create the version header in meson.build loses
> >>> the dependency needed for the header file to be built when
> >>> it doesn't exist. This means that:
> >>>
> >>> * if you delete the build/qemu-version.h file, an incremental
> >>> rebuild fails, rather than recreating it
> >>
> >> That's not what I observe. From current master, file is correctly
> >> recreated. Do you still observe a problem with a clean build folder?
> >
> > Yes.
> >
> > $ git log --oneline -1
> > f71afb409a8 Merge tag 'pull-loongarch-20261105' of
> > https://github.com/bibo-mao/qemu into staging
> > $ rm -rf build/arm && mkdir build/arm && (cd build/arm &&
> > '../../configure'
> > '--target-list=arm-softmmu,aarch64-softmmu,arm-linux-user,aarch64-linux-user,aarch64_be-linux-user'
> > '--cc=ccache gcc' '--with-pkgversion=pm215' '--enable-debug'
> > '--enable-docs') && make -C build/arm -j20
> > [...]
> > $ make -C build/arm -j20
> > make: Entering directory '/home/pm215/qemu/build/arm'
> > [1/35] Generating tests/include/QAPI test (include) with a custom command
> > make: Leaving directory '/home/pm215/qemu/build/arm'
> > $ make -C build/arm -j20
> > make: Entering directory '/home/pm215/qemu/build/arm'
> > [1/27] Compiling C object qga/qemu-ga.p/main.c.o
> > FAILED: qga/qemu-ga.p/main.c.o
> > /usr/bin/ccache gcc -m64 -Iqga/qemu-ga.p -Iqga -I../../qga -I. -Iqapi
> > -Itrace -Iui -Iui/shader -I/usr/include/glib-2.0
> > -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -fdiagnostics-color=auto
> > -Wall -Winvalid-pch -Werror -std=gnu11 -O0 -g -mcx16 -msse2
> > -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE
> > -fno-strict-aliasing -fno-common -fwrapv -ftrivial-auto-var-init=zero
> > -fzero-call-used-regs=used-gpr -fstack-protector-strong -Wempty-body
> > -Wendif-labels -Wexpansion-to-defined -Wformat-overflow=2
> > -Wformat-security -Wformat-y2k -Wignored-qualifiers
> > -Wimplicit-fallthrough=2 -Winit-self -Wmissing-format-attribute
> > -Wmissing-prototypes -Wnested-externs -Wold-style-declaration
> > -Wold-style-definition -Wredundant-decls -Wshadow=local
> > -Wstrict-prototypes -Wtype-limits -Wundef -Wvla -Wwrite-strings
> > -Wno-missing-include-dirs -Wno-psabi -Wno-shift-negative-value
> > -isystem /home/pm215/qemu/linux-headers -isystem linux-headers -iquote
> > . -iquote /home/pm215/qemu -iquote /home/pm215/qemu/include -iquote
> > /home/pm215/qemu/host/include/x86_64 -iquote
> > /home/pm215/qemu/host/include/generic -iquote
> > /home/pm215/qemu/tcg/x86_64 -pthread -fPIE -MD -MQ
> > qga/qemu-ga.p/main.c.o -MF qga/qemu-ga.p/main.c.o.d -o
> > qga/qemu-ga.p/main.c.o -c ../../qga/main.c
> > In file included from ../../qga/main.c:33:
> > /home/pm215/qemu/include/qemu/version.h:11:10: fatal error:
> > qemu-version.h: No such file or directory
> > 11 | #include "qemu-version.h"
> > | ^~~~~~~~~~~~~~~~
> > compilation terminated.
> > [etc]
> >
> > I have run into this problem about a dozen times this week with
> > different build trees and different git branches, and it is very
> > annoying.
> >
> >> The problem seems to be crossing this commit, which we can't do anything
> >> about since it's there.
> >
> > Yeah, it's going to be a broken git bisect for that part of
> > history, which is unavoidable. But the current state of git
> > is (a) broken and (b) not clearly what we actually want, per
> > the other thread.
> >
> > -- PMM
>
> I see, the missing bit I didn't use is '--with-pkgversion=pm215'.
> Without it, it works fine.
>
> Any reason you use it for dev builds?
>
> Seems to be something related to releases, which probably won't use
> incremental builds.
Oh, I am using it in daily work, and indeed I like these changes(not
reverting it is better for me) :)
I am using rsync to cause it to build remotely, so that I have no .git folder.
>
> Regards,
> Pierrick
--
此致
礼
罗勇刚
Yours
sincerely,
Yonggang Luo
