qemu-devel.nongnu.org archive mirror
 help / color / mirror / Atom feed
From: Paolo Bonzini <pbonzini@redhat.com>
To: Peter Maydell <peter.maydell@linaro.org>
Cc: "Marc-André Lureau" <marcandre.lureau@redhat.com>, qemu-devel@nongnu.org
Subject: Re: [PULL 21/26] configure, meson: move more compiler checks to Meson
Date: Tue, 16 Nov 2021 10:29:28 +0100	[thread overview]
Message-ID: <a5101180-3f28-d6a4-8ee2-b98ff4623e36@redhat.com> (raw)
In-Reply-To: <CAFEAcA9HoX9riUjU_N6erkLu0r5gRawDTKSJgwjNb+2Mcn+0=g@mail.gmail.com>

On 11/15/21 17:42, Peter Maydell wrote:
>> Hi -- I've just noticed that this change breaks compilation for me,
>> because this test incorrectly fails to set CONFIG_IOVEC on a system
>> where the header defines 'struct iovec'. This seems to be because
>> "struct iovec" isn't a valid thing to test with has_header_symbol,
>> because it provokes a compiler error from clang.
> https://github.com/mesonbuild/meson/issues/1975  says that for gcc
> it's actually going to be wrong the other way (always setting CONFIG_IOVEC
> whether the system header has the struct or not), because "struct wombat;"
> is syntactically OK as a*declaration*, not a use.
> 
> Maybe we can work around this by testing for the presence of something else,
> eg IOV_MAX or the readv or writev functions ?

It can just use cc.has_type.

Paolo



  reply	other threads:[~2021-11-16  9:31 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-14 16:29 [PULL 00/26] Meson changes for 2021-10-14 Paolo Bonzini
2021-10-14 16:29 ` [PULL 01/26] configure: remove --oss-lib Paolo Bonzini
2021-10-14 16:29 ` [PULL 02/26] audio: remove CONFIG_AUDIO_WIN_INT Paolo Bonzini
2021-10-14 16:29 ` [PULL 03/26] configure, meson: move audio driver detection to Meson Paolo Bonzini
2021-11-01 14:32   ` Peter Maydell
2021-10-14 16:29 ` [PULL 04/26] meson: define symbols for all available audio drivers Paolo Bonzini
2021-10-14 16:29 ` [PULL 05/26] configure: add command line options for " Paolo Bonzini
2021-10-14 16:29 ` [PULL 06/26] kconfig: split CONFIG_SPARSE_MEM from fuzzing Paolo Bonzini
2021-10-14 16:29 ` [PULL 07/26] configure, meson: move fuzzing configuration to Meson Paolo Bonzini
2021-10-14 16:29 ` [PULL 08/26] trace: simple: pass trace_file unmodified to config-host.h Paolo Bonzini
2021-10-14 16:29 ` [PULL 09/26] trace: move configuration from configure to Meson Paolo Bonzini
2021-10-14 16:29 ` [PULL 10/26] configure, meson: move CONFIG_HOST_DSOSUF " Paolo Bonzini
2021-10-14 16:29 ` [PULL 11/26] configure, meson: get HOST_WORDS_BIGENDIAN via the machine object Paolo Bonzini
2021-10-14 16:29 ` [PULL 12/26] configure, meson: remove CONFIG_GCOV from config-host.mak Paolo Bonzini
2021-10-14 16:29 ` [PULL 13/26] meson: HAVE_GDB_BIN is not used by C code Paolo Bonzini
2021-10-14 16:29 ` [PULL 14/26] configure, meson: move remaining HAVE_* compiler tests to Meson Paolo Bonzini
2021-10-14 16:29 ` [PULL 15/26] configure, meson: move pthread_setname_np checks " Paolo Bonzini
2021-11-15 17:15   ` Daniel P. Berrangé
2021-11-15 17:25     ` Peter Maydell
2021-10-14 16:29 ` [PULL 16/26] configure, meson: move libaio check to meson.build Paolo Bonzini
2021-10-14 16:29 ` [PULL 17/26] configure, meson: move vde detection to meson Paolo Bonzini
2021-10-14 16:29 ` [PULL 18/26] configure, meson: move netmap " Paolo Bonzini
2021-10-14 16:29 ` [PULL 19/26] configure, meson: move Spice configure handling " Paolo Bonzini
2021-10-14 16:29 ` [PULL 20/26] configure: remove obsolete Solaris ar check Paolo Bonzini
2021-10-14 16:29 ` [PULL 21/26] configure, meson: move more compiler checks to Meson Paolo Bonzini
2021-11-15 16:36   ` Peter Maydell
2021-11-15 16:42     ` Peter Maydell
2021-11-16  9:29       ` Paolo Bonzini [this message]
2021-11-16 13:13       ` Peter Maydell
2021-11-15 16:55     ` Peter Maydell
2021-10-14 16:29 ` [PULL 22/26] configure: remove deprecated --{enable, disable}-git-update Paolo Bonzini
2021-10-14 16:29 ` [PULL 23/26] configure: accept "internal" for --enable-capstone/slirp/fdt Paolo Bonzini
2021-10-14 16:29 ` [PULL 24/26] configure: prepare for auto-generated option parsing Paolo Bonzini
2021-10-14 16:29 ` [PULL 25/26] meson-buildoptions: include list of tracing backends Paolo Bonzini
2021-10-14 16:29 ` [PULL 26/26] configure: automatically parse command line for meson -D options Paolo Bonzini
2021-10-14 19:15 ` [PULL 00/26] Meson changes for 2021-10-14 Richard Henderson

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=a5101180-3f28-d6a4-8ee2-b98ff4623e36@redhat.com \
    --to=pbonzini@redhat.com \
    --cc=marcandre.lureau@redhat.com \
    --cc=peter.maydell@linaro.org \
    --cc=qemu-devel@nongnu.org \
    --subject='Re: [PULL 21/26] configure, meson: move more compiler checks to Meson' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).