[Buildroot] [PATCH 1/1] package/dhcp: fix cross build

[Buildroot] [PATCH 1/1] package/dhcp: fix cross build

[Bernd Kuhls]

Fixes build error

Building dns library in /home/bernd/buildroot/br4/output/build/dhcp-4.4.3-
P1/bind/bind-9.11.36/lib/dns
./gen: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.38' not found 
(required by ./gen)
make[4]: *** [Makefile:601: include/dns/enumtype.h] Error 1
make[3]: *** [Makefile:595: include] Error 2

with this defconfig

BR2_x86_64=y
BR2_PACKAGE_BUSYBOX_SHOW_OTHERS=y
BR2_PACKAGE_DHCP=y

Please note that this build error only occurs when the target and the
host system have the same arch. For example this defconfig builds fine:

BR2_PACKAGE_BUSYBOX_SHOW_OTHERS=y
BR2_PACKAGE_DHCP=y

on a Debian 12 x86_64 host using glibc-2.36:

$ /lib/ld-linux.so.2  --version
ld.so (Debian GLIBC 2.36-9+deb12u1) stable release version 2.36.

The error occurs since buildroot commit 34f8d874ee which bumped glibc
from 2.37 to 2.38.

This patch is inspired by the Yocto Project:
https://patchwork.yoctoproject.org/project/oe/patch/20230715212159.3265080-1-raj.khem@gmail.com/

Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
---
 package/dhcp/dhcp.mk | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/package/dhcp/dhcp.mk b/package/dhcp/dhcp.mk
index 7be40191c8..094d361e45 100644
--- a/package/dhcp/dhcp.mk
+++ b/package/dhcp/dhcp.mk
@@ -32,6 +32,9 @@ DHCP_CONF_ENV = \
 	CFLAGS='$(TARGET_CFLAGS) -DISC_CHECK_NONE=1'
 
 DHCP_BIND_EXTRA_CONFIG = \
+	--build=$(GNU_HOST_NAME) \
+	--host=$(GNU_TARGET_NAME) \
+	--target=$(GNU_TARGET_NAME) \
 	BUILD_CC='$(HOSTCC)' \
 	BUILD_CFLAGS='$(HOST_CFLAGS)' \
 	BUILD_CPPFLAGS='$(HOST_CPPFLAGS)' \
-- 
2.39.2

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Re: [Buildroot] [PATCH 1/1] package/dhcp: fix cross build

[Yann E. MORIN]

Bernd, All,

On 2023-10-02 21:51 +0200, Bernd Kuhls spake thusly:
> Fixes build error
> 
> Building dns library in /home/bernd/buildroot/br4/output/build/dhcp-4.4.3-
> P1/bind/bind-9.11.36/lib/dns
> ./gen: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.38' not found 
> (required by ./gen)
> make[4]: *** [Makefile:601: include/dns/enumtype.h] Error 1
> make[3]: *** [Makefile:595: include] Error 2
> 
> with this defconfig
> 
> BR2_x86_64=y
> BR2_PACKAGE_BUSYBOX_SHOW_OTHERS=y
> BR2_PACKAGE_DHCP=y
> 
> Please note that this build error only occurs when the target and the
> host system have the same arch. For example this defconfig builds fine:
> 
> BR2_PACKAGE_BUSYBOX_SHOW_OTHERS=y
> BR2_PACKAGE_DHCP=y
> 
> on a Debian 12 x86_64 host using glibc-2.36:
> 
> $ /lib/ld-linux.so.2  --version
> ld.so (Debian GLIBC 2.36-9+deb12u1) stable release version 2.36.
> 
> The error occurs since buildroot commit 34f8d874ee which bumped glibc
> from 2.37 to 2.38.
> 
> This patch is inspired by the Yocto Project:
> https://patchwork.yoctoproject.org/project/oe/patch/20230715212159.3265080-1-raj.khem@gmail.com/

That patch has an important tidbit of inoormation that yours is missing,
and that is important to get: this is passing the configure options to
the internal bind.

Indeed, I was very puzzled why passing the same --build, --host, and
--target as pkg-autotools already does, would fix the issue.

But indeed, isch dhcp internally configure a bundled bind, and messes
when doing so.

So your patch looks like it is correct.

However, I would challenge it on other grounds: ISC decided to stop
maintaing dhcp starting end of 2022, almost a year ago, when they
released the last version of dhcp.

Should we just drop that package now and be done with it?

Regards,
Yann E. MORIN.

> Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
> ---
>  package/dhcp/dhcp.mk | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/package/dhcp/dhcp.mk b/package/dhcp/dhcp.mk
> index 7be40191c8..094d361e45 100644
> --- a/package/dhcp/dhcp.mk
> +++ b/package/dhcp/dhcp.mk
> @@ -32,6 +32,9 @@ DHCP_CONF_ENV = \
>  	CFLAGS='$(TARGET_CFLAGS) -DISC_CHECK_NONE=1'
>  
>  DHCP_BIND_EXTRA_CONFIG = \
> +	--build=$(GNU_HOST_NAME) \
> +	--host=$(GNU_TARGET_NAME) \
> +	--target=$(GNU_TARGET_NAME) \
>  	BUILD_CC='$(HOSTCC)' \
>  	BUILD_CFLAGS='$(HOST_CFLAGS)' \
>  	BUILD_CPPFLAGS='$(HOST_CPPFLAGS)' \
> -- 
> 2.39.2
> 
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> buildroot@buildroot.org
> https://lists.buildroot.org/mailman/listinfo/buildroot

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Re: [Buildroot] [PATCH 1/1] package/dhcp: fix cross build

[Bernd Kuhls]

Am Mon, 2 Oct 2023 22:51:44 +0200 schrieb Yann E. MORIN:

> So your patch looks like it is correct.
> 
> However, I would challenge it on other grounds: ISC decided to stop
> maintaing dhcp starting end of 2022, almost a year ago, when they
> released the last version of dhcp.
> 
> Should we just drop that package now and be done with it?

Hi Yann,

my patch follows Peter's intention:
"If it is dead upstream and hard to fix then that naturally makes it 
harder to do, but the intention is to fix it."
http://lists.busybox.net/pipermail/buildroot/2022-April/640709.html

The ISC dhcp package is also used in current Debian releases:
https://tracker.debian.org/pkg/isc-dhcp

Regards, Bernd

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Re: [Buildroot] [PATCH 1/1] package/dhcp: fix cross build

[Thomas Petazzoni via buildroot]

On Mon,  2 Oct 2023 21:51:59 +0200
Bernd Kuhls <bernd@kuhls.net> wrote:

> Fixes build error
> 
> Building dns library in /home/bernd/buildroot/br4/output/build/dhcp-4.4.3-
> P1/bind/bind-9.11.36/lib/dns
> ./gen: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.38' not found 
> (required by ./gen)
> make[4]: *** [Makefile:601: include/dns/enumtype.h] Error 1
> make[3]: *** [Makefile:595: include] Error 2
> 
> with this defconfig
> 
> BR2_x86_64=y
> BR2_PACKAGE_BUSYBOX_SHOW_OTHERS=y
> BR2_PACKAGE_DHCP=y
> 
> Please note that this build error only occurs when the target and the
> host system have the same arch. For example this defconfig builds fine:
> 
> BR2_PACKAGE_BUSYBOX_SHOW_OTHERS=y
> BR2_PACKAGE_DHCP=y
> 
> on a Debian 12 x86_64 host using glibc-2.36:
> 
> $ /lib/ld-linux.so.2  --version
> ld.so (Debian GLIBC 2.36-9+deb12u1) stable release version 2.36.
> 
> The error occurs since buildroot commit 34f8d874ee which bumped glibc
> from 2.37 to 2.38.
> 
> This patch is inspired by the Yocto Project:
> https://patchwork.yoctoproject.org/project/oe/patch/20230715212159.3265080-1-raj.khem@gmail.com/
> 
> Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
> ---
>  package/dhcp/dhcp.mk | 3 +++
>  1 file changed, 3 insertions(+)

Applied to master, thanks.

Thomas
-- 
Thomas Petazzoni, CTO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
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Re: [Buildroot] [PATCH 1/1] package/dhcp: fix cross build

[Peter Korsgaard]

>>>>> "Bernd" == Bernd Kuhls <bernd@kuhls.net> writes:

 > Am Mon, 2 Oct 2023 22:51:44 +0200 schrieb Yann E. MORIN:
 >> So your patch looks like it is correct.
 >> 
 >> However, I would challenge it on other grounds: ISC decided to stop
 >> maintaing dhcp starting end of 2022, almost a year ago, when they
 >> released the last version of dhcp.
 >> 
 >> Should we just drop that package now and be done with it?

 > Hi Yann,

 > my patch follows Peter's intention:
 > "If it is dead upstream and hard to fix then that naturally makes it 
 > harder to do, but the intention is to fix it."
 > http://lists.busybox.net/pipermail/buildroot/2022-April/640709.html

.. Which was a discussion about supporting it during the support period
of Buildroot 2022.02.x, but OK.

Maybe we should consider dropping it for 2024.02.x.

-- 
Bye, Peter Korsgaard
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