Re:Re: ERROR: glib-2.48 gthread-2.0 is required to compile QEMU

[Lee <380121850@163.com>]

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thanks
i think you are maybe right; 


root@ubuntu-upstart-1:~# dpkg -l libglib2.0-dev
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name                 Version         Architecture    Description
+++-====================-===============-===============-==============================================
ii  libglib2.0-dev       2.40.2-0ubuntu1 amd64           Development files for the GLib library



















At 2020-10-19 00:23:14, "Peter Maydell" <peter.maydell@linaro.org> wrote:
>On Sun, 18 Oct 2020 at 15:38, Lee <380121850@163.com> wrote:
>> Ubuntu 14.04.6 LTS, X86_64
>> I  make source code of version qemu 5.1\5.0\4.2,and foud the error:glib-2.48 gthread-2.0 is required to compile QEMU
>> try apt-get install libglib2.0-dev,and it is sucess :
>> Reading state information... Done
>> libglib2.0-dev is already the newest version.
>
>I believe that Ubuntu 14.04 shipped with libglib2.0-dev
>version 2.40.2 -- this is too old, as the QEMU error
>message says.
>
>The simplest thing to do would be for you to upgrade your Ubuntu
>install -- 14.04 is now very old (it reached "end of standard
>support", ie no more security fixes unless you're paying
>Canonical for extended security maintenance, in April 2019).
>
>QEMU's distro support policy is documented here:
>https://www.qemu.org/docs/master/system/build-platforms.html
>For distros like Ubuntu with a 'long-lifetime' type release
>(like LTS), we support the most recent major version, and
>the previous major version up until 2 years after the next
>major version was released. So we support 20.04 LTS (the
>most recent) and also will support 18.04 LTS until at least
>April 2022 (since 20.04 was released in April 2020), but
>anything older than that is not officially supported and
>may or may not work.
>
>> i found that version qemu 4.1 is OK,the same environment
>
>QEMU 4.1 did not require the newer version of glib. (As we
>develop QEMU we want to be able to use the extra features
>in newer versions of our dependent libraries and to be able
>to remove backwards-compatibility code that is needed only
>when using older versions of those libraries, so sometimes
>when all the distros and versions we support ship with a
>new enough version of a library we will increase the
>minimum required version that QEMU needs to build.)
>
>thanks
>-- PMM

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