Re: [PATCH] opkg/package/rootfs_ipk: allow overwriting OPKGLIBDIR

[Adrian Ratiu <adrian.ratiu@collabora.com>]

On Wed, 17 Jul 2019, Martin Jansa <martin.jansa@gmail.com> wrote:
> On Wed, Jul 17, 2019 at 02:52:21PM +0300, Adrian Ratiu wrote: 
>> Hi  On Wed, 17 Jul 2019, Martin Jansa <martin.jansa@gmail.com> 
>> wrote: 
>> > Why don't you overwrite it with an override? We're doing that 
>> > for years without any issues. 
>>  You mean a distro-wide override in a .conf? 
> 
> yes 
> 
>> Can you please point to an example? 
> 
> https://github.com/webosose/meta-webosose/blob/master/meta-webos/conf/distro/include/webos.inc#L256 

Thanks, I didn't know about the _forcevariable override.

Is using _forcevariable the preferred method to do this though 
instead of using ??= ?

The reference manual says it's not recommended and a "worst case" 
solution...

>
>> > On Wed, Jul 17, 2019 at 12:01 AM Adrian Ratiu <adrian.ratiu@collabora.com>
>> > wrote:
>> >
>> >> Some distributions for various reasons (like for example mounting a
>> >> tmpfs over /var at runtime) can't use /var/lib to store the opkg
>> >> metadata, so a different path is required to have a functioning
>> >> package manager.
>> >>
>> >> ${localstatedir} can't be modified to something other than the
>> >> hardcoded value in bitbake.conf because other recipes depending on it
>> >> will fail to install.
>> >>
>> >> So the only recourse, which is also the least invasive, is to allow
>> >> distros to overwrite the OPKGLIBDIR variable just like they are also
>> >> allowed to overwrite OPKGBUILDCMD.
>> >>
>> >> Signed-off-by: Adrian Ratiu <adrian.ratiu@collabora.com>
>> >> ---
>> >>  meta/classes/package_ipk.bbclass         | 2 +-
>> >>  meta/classes/rootfs_ipk.bbclass          | 2 +-
>> >>  meta/recipes-devtools/opkg/opkg_0.4.1.bb | 2 +-
>> >>  3 files changed, 3 insertions(+), 3 deletions(-)
>> >>
>> >> diff --git a/meta/classes/package_ipk.bbclass
>> >> b/meta/classes/package_ipk.bbclass
>> >> index d1b317b42b..9f9da2f91d 100644
>> >> --- a/meta/classes/package_ipk.bbclass
>> >> +++ b/meta/classes/package_ipk.bbclass
>> >> @@ -14,7 +14,7 @@ OPKG_ARGS += "--force_postinstall
>> >> --prefer-arch-to-version"
>> >>  OPKG_ARGS += "${@['',
>> >> '--no-install-recommends'][d.getVar("NO_RECOMMENDATIONS") == "1"]}"
>> >>  OPKG_ARGS += "${@['', '--add-exclude ' + ' --add-exclude
>> >> '.join((d.getVar('PACKAGE_EXCLUDE') or
>> >> "").split())][(d.getVar("PACKAGE_EXCLUDE") or "").strip() != ""]}"
>> >>
>> >> -OPKGLIBDIR = "${localstatedir}/lib"
>> >> +OPKGLIBDIR ??= "${localstatedir}/lib"
>> >>
>> >>  python do_package_ipk () {
>> >>      workdir = d.getVar('WORKDIR')
>> >> diff --git a/meta/classes/rootfs_ipk.bbclass
>> >> b/meta/classes/rootfs_ipk.bbclass
>> >> index aabc370cfc..e73d2bfdae 100644
>> >> --- a/meta/classes/rootfs_ipk.bbclass
>> >> +++ b/meta/classes/rootfs_ipk.bbclass
>> >> @@ -21,7 +21,7 @@ OPKG_PREPROCESS_COMMANDS = ""
>> >>
>> >>  OPKG_POSTPROCESS_COMMANDS = ""
>> >>
>> >> -OPKGLIBDIR = "${localstatedir}/lib"
>> >> +OPKGLIBDIR ??= "${localstatedir}/lib"
>> >>
>> >>  MULTILIBRE_ALLOW_REP = "${OPKGLIBDIR}/opkg|/usr/lib/opkg"
>> >>
>> >> diff --git a/meta/recipes-devtools/opkg/opkg_0.4.1.bb
>> >> b/meta/recipes-devtools/opkg/opkg_0.4.1.bb
>> >> index 8c48d3097c..c663eff13b 100644
>> >> --- a/meta/recipes-devtools/opkg/opkg_0.4.1.bb
>> >> +++ b/meta/recipes-devtools/opkg/opkg_0.4.1.bb
>> >> @@ -28,7 +28,7 @@ PACKAGES =+ "libopkg"
>> >>  inherit autotools pkgconfig systemd ptest
>> >>
>> >>  target_localstatedir := "${localstatedir}"
>> >> -OPKGLIBDIR = "${target_localstatedir}/lib"
>> >> +OPKGLIBDIR ??= "${target_localstatedir}/lib"
>> >>
>> >>  PACKAGECONFIG ??= "libsolv"
>> >>
>> >> --
>> >> 2.22.0
>> >>
>> >> --
>> >> _______________________________________________
>> >> Openembedded-core mailing list
>> >> Openembedded-core@lists.openembedded.org
>> >> http://lists.openembedded.org/mailman/listinfo/openembedded-core
>> >>
>
> -- 
> Martin 'JaMa' Jansa     jabber: Martin.Jansa@gmail.com