[PATCH] xfconfig: use sysroot and target perl

[PATCH] xfconfig: use sysroot and target perl

[Ulf Samuelsson]

xfconf-4.10.0 does not use OE sysroot as is.
--with-sysroot=yes 
will make configure run CC --print-sysroot
and use that.

When searching the PATH for perl, no target perl is found,
since PATH does not contain any reference.
Instead native perl is found, and if certain perl packages
are installed on the host machine, the xfconf perl support
is enabled which may cause the build to fail on 64 bit hosts.
If the perl packages are not installed on the host, then
perl support in xfconf is disabled, and the xfconf build
will succeed, even on 64 bit hosts.

If native perl is found, and the perl packages are available
on the host, the perl support is enabled.

Since native perl is used, the native linker is used to link the 
resulting *target* code.  

The perl support requires some libraries, which are built for the target.
If the host is 64 bit (x86_64) and the target is 32 bit (ARM?), 
there is a mismatch which is detected by the linker, 
and the libraries found are rejected.

If the host does not have the correct libraries,
then the xfconf build fails.
If the host has the correct libraries, then the linker will try
to link host libraries with the target application.

The patch will define PERL as the target perl.
This means that configure will look for the required perl
packages in the target sysroot, instead of in the native filesystem.

The patch has been tested in Angstrom master, which does not
build the required perl packages, and thus perl support
in xfconf is disabled, and the build succeeds.

A simpler way to do this, proposed by Charles Ash <ashcharles@gmail.com>
is to simply disable the perl-support in xfconf.
This patch will be better, if ever the support for the needed
perl packages is added to the OpenEmbedded/Angstrom build.


Signed-off-by: Ulf Samuelsson <ulf@emagii.com>
---
 meta-xfce/recipes-xfce/xfconf/xfconf_4.10.0.bb |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/meta-xfce/recipes-xfce/xfconf/xfconf_4.10.0.bb b/meta-xfce/recipes-xfce/xfconf/xfconf_4.10.0.bb
index 4ea2b88..6d5bf57 100644
--- a/meta-xfce/recipes-xfce/xfconf/xfconf_4.10.0.bb
+++ b/meta-xfce/recipes-xfce/xfconf/xfconf_4.10.0.bb
@@ -2,10 +2,14 @@ DESCRIPTION = "Xfce configuration daemon and utilities"
 SECTION = "x11/wm"
 LICENSE = "GPLv2"
 LIC_FILES_CHKSUM = "file://COPYING;md5=59530bdf33659b29e73d4adb9f9f6552"
-DEPENDS = "dbus-glib libxfce4util perl-native"
+DEPENDS = "dbus-glib libxfce4util perl"
+PR="r1"
 
 inherit xfce
 
+EXTRA_OECONF += "PERL=${STAGING_DIR_TARGET}/usr/bin/perl"
+EXTRA_OECONF += "--with-sysroot=yes"
+
 SRC_URI += "file://0001-Simplify-checks.patch"
 SRC_URI[md5sum] = "4ed48150a03fb5f42b455494307b7f28"
 SRC_URI[sha256sum] = "175219a441cc7d0f210bbd1a3b0abba41598627cd9db27235811400c3e100576"
-- 
1.7.9.5

Re: [PATCH] xfconfig: use sysroot and target perl

[Ash Charles]

Hi,

Thanks Ulf.

I just tried this on my dora branch instead of my disable-perl
bbappend and it worked for me.

Tested-by: Ash Charles <ashcharles@gmail.com>

--Ash

On Sat, Dec 7, 2013 at 11:29 PM, Ulf Samuelsson <ulf@emagii.com> wrote:
> xfconf-4.10.0 does not use OE sysroot as is.
> --with-sysroot=yes
> will make configure run CC --print-sysroot
> and use that.
>
> When searching the PATH for perl, no target perl is found,
> since PATH does not contain any reference.
> Instead native perl is found, and if certain perl packages
> are installed on the host machine, the xfconf perl support
> is enabled which may cause the build to fail on 64 bit hosts.
> If the perl packages are not installed on the host, then
> perl support in xfconf is disabled, and the xfconf build
> will succeed, even on 64 bit hosts.
>
> If native perl is found, and the perl packages are available
> on the host, the perl support is enabled.
>
> Since native perl is used, the native linker is used to link the
> resulting *target* code.
>
> The perl support requires some libraries, which are built for the target.
> If the host is 64 bit (x86_64) and the target is 32 bit (ARM?),
> there is a mismatch which is detected by the linker,
> and the libraries found are rejected.
>
> If the host does not have the correct libraries,
> then the xfconf build fails.
> If the host has the correct libraries, then the linker will try
> to link host libraries with the target application.
>
> The patch will define PERL as the target perl.
> This means that configure will look for the required perl
> packages in the target sysroot, instead of in the native filesystem.
>
> The patch has been tested in Angstrom master, which does not
> build the required perl packages, and thus perl support
> in xfconf is disabled, and the build succeeds.
>
> A simpler way to do this, proposed by Charles Ash <ashcharles@gmail.com>
> is to simply disable the perl-support in xfconf.
> This patch will be better, if ever the support for the needed
> perl packages is added to the OpenEmbedded/Angstrom build.
>
>
> Signed-off-by: Ulf Samuelsson <ulf@emagii.com>
> ---
>  meta-xfce/recipes-xfce/xfconf/xfconf_4.10.0.bb |    6 +++++-
>  1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/meta-xfce/recipes-xfce/xfconf/xfconf_4.10.0.bb b/meta-xfce/recipes-xfce/xfconf/xfconf_4.10.0.bb
> index 4ea2b88..6d5bf57 100644
> --- a/meta-xfce/recipes-xfce/xfconf/xfconf_4.10.0.bb
> +++ b/meta-xfce/recipes-xfce/xfconf/xfconf_4.10.0.bb
> @@ -2,10 +2,14 @@ DESCRIPTION = "Xfce configuration daemon and utilities"
>  SECTION = "x11/wm"
>  LICENSE = "GPLv2"
>  LIC_FILES_CHKSUM = "file://COPYING;md5=59530bdf33659b29e73d4adb9f9f6552"
> -DEPENDS = "dbus-glib libxfce4util perl-native"
> +DEPENDS = "dbus-glib libxfce4util perl"
> +PR="r1"
>
>  inherit xfce
>
> +EXTRA_OECONF += "PERL=${STAGING_DIR_TARGET}/usr/bin/perl"
> +EXTRA_OECONF += "--with-sysroot=yes"
> +
>  SRC_URI += "file://0001-Simplify-checks.patch"
>  SRC_URI[md5sum] = "4ed48150a03fb5f42b455494307b7f28"
>  SRC_URI[sha256sum] = "175219a441cc7d0f210bbd1a3b0abba41598627cd9db27235811400c3e100576"
> --
> 1.7.9.5
>
> _______________________________________________
> Openembedded-devel mailing list
> Openembedded-devel@lists.openembedded.org
> http://lists.openembedded.org/mailman/listinfo/openembedded-devel

Re: [PATCH] xfconfig: use sysroot and target perl

[Koen Kooi]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Ulf Samuelsson schreef op 07-12-13 23:29:
> xfconf-4.10.0 does not use OE sysroot as is. --with-sysroot=yes will make
> configure run CC --print-sysroot and use that.
> 
> When searching the PATH for perl, no target perl is found, since PATH
> does not contain any reference. Instead native perl is found, and if
> certain perl packages are installed on the host machine, the xfconf perl
> support is enabled which may cause the build to fail on 64 bit hosts. If
> the perl packages are not installed on the host, then perl support in
> xfconf is disabled, and the xfconf build will succeed, even on 64 bit
> hosts.
> 
> If native perl is found, and the perl packages are available on the host,
> the perl support is enabled.
> 
> Since native perl is used, the native linker is used to link the 
> resulting *target* code.
> 
> The perl support requires some libraries, which are built for the
> target. If the host is 64 bit (x86_64) and the target is 32 bit (ARM?), 
> there is a mismatch which is detected by the linker, and the libraries
> found are rejected.
> 
> If the host does not have the correct libraries, then the xfconf build
> fails. If the host has the correct libraries, then the linker will try to
> link host libraries with the target application.
> 
> The patch will define PERL as the target perl. This means that configure
> will look for the required perl packages in the target sysroot, instead
> of in the native filesystem.
> 
> The patch has been tested in Angstrom master, which does not build the
> required perl packages, and thus perl support in xfconf is disabled, and
> the build succeeds.
> 
> A simpler way to do this, proposed by Charles Ash <ashcharles@gmail.com> 
> is to simply disable the perl-support in xfconf. This patch will be
> better, if ever the support for the needed perl packages is added to the
> OpenEmbedded/Angstrom build.
> 
> 
> Signed-off-by: Ulf Samuelsson <ulf@emagii.com> --- 
> meta-xfce/recipes-xfce/xfconf/xfconf_4.10.0.bb |    6 +++++- 1 file
> changed, 5 insertions(+), 1 deletion(-)
> 
> diff --git a/meta-xfce/recipes-xfce/xfconf/xfconf_4.10.0.bb
> b/meta-xfce/recipes-xfce/xfconf/xfconf_4.10.0.bb index 4ea2b88..6d5bf57
> 100644 --- a/meta-xfce/recipes-xfce/xfconf/xfconf_4.10.0.bb +++
> b/meta-xfce/recipes-xfce/xfconf/xfconf_4.10.0.bb @@ -2,10 +2,14 @@
> DESCRIPTION = "Xfce configuration daemon and utilities" SECTION =
> "x11/wm" LICENSE = "GPLv2" LIC_FILES_CHKSUM =
> "file://COPYING;md5=59530bdf33659b29e73d4adb9f9f6552" -DEPENDS =
> "dbus-glib libxfce4util perl-native" +DEPENDS = "dbus-glib libxfce4util
> perl" +PR="r1"

PR is deprecated and shouldn't be used anymore

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Re: [PATCH] xfconfig: use sysroot and target perl

[Trevor Woerner]

On 12/07/13 17:29, Ulf Samuelsson wrote:
> xfconf-4.10.0 does not use OE sysroot as is.
> --with-sysroot=yes 
> will make configure run CC --print-sysroot
> and use that.
>
> Signed-off-by: Ulf Samuelsson <ulf@emagii.com>
> ---
>  meta-xfce/recipes-xfce/xfconf/xfconf_4.10.0.bb |    6 +++++-
>  1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/meta-xfce/recipes-xfce/xfconf/xfconf_4.10.0.bb b/meta-xfce/recipes-xfce/xfconf/xfconf_4.10.0.bb
> index 4ea2b88..6d5bf57 100644
> --- a/meta-xfce/recipes-xfce/xfconf/xfconf_4.10.0.bb
> +++ b/meta-xfce/recipes-xfce/xfconf/xfconf_4.10.0.bb
> @@ -2,10 +2,14 @@ DESCRIPTION = "Xfce configuration daemon and utilities"
>  SECTION = "x11/wm"
>  LICENSE = "GPLv2"
>  LIC_FILES_CHKSUM = "file://COPYING;md5=59530bdf33659b29e73d4adb9f9f6552"
> -DEPENDS = "dbus-glib libxfce4util perl-native"
> +DEPENDS = "dbus-glib libxfce4util perl"
> +PR="r1"
>  
>  inherit xfce
>  
> +EXTRA_OECONF += "PERL=${STAGING_DIR_TARGET}/usr/bin/perl"
> +EXTRA_OECONF += "--with-sysroot=yes"
> +
>  SRC_URI += "file://0001-Simplify-checks.patch"
>  SRC_URI[md5sum] = "4ed48150a03fb5f42b455494307b7f28"
>  SRC_URI[sha256sum] = "175219a441cc7d0f210bbd1a3b0abba41598627cd9db27235811400c3e100576"

This patch is causing the build to emit a QA warning:

xfconf-4.10.0: xfconf: configure was passed unrecognised options: --with-sysroot

Is this really the right option to supply for what you're trying to do?

http://logs.nslu2-linux.org/buildlogs/oe/oe-shr-core-branches/log.world.20140329_001343.log/qa.log


On my machine this package builds with this option (--with-sysroot)
removed, but I realize that testing on one machine is probably not
sufficient.