GNU bug report logs - #54599
[PATCH] gnu: libdaemon: fix build for riscv64

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: fesoj000 <fesoj000 <at> gmail.com>
To: guix-patches <at> gnu.org
Subject: [PATCH] gnu: libdaemon: fix build for riscv64
Date: Sun, 27 Mar 2022 21:24:20 +0200

* gnu/packages/libdaemon.scm: (native-inputs): Add check for riscv64 to
include config
* gnu/packages/libdaemon.scm: (arguments): Add check for riscv64 to add
update-config.sub build step
---
 gnu/packages/libdaemon.scm | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/gnu/packages/libdaemon.scm b/gnu/packages/libdaemon.scm
index 9dc851e823..e91b651e5a 100644
--- a/gnu/packages/libdaemon.scm
+++ b/gnu/packages/libdaemon.scm
@@ -49,7 +49,8 @@ (define-public libdaemon
              (file-name (string-append name "-" version ".tar.gz"))))
     (build-system gnu-build-system)
     (native-inputs
-     (if (and=> (%current-target-system) target-aarch64?)
+     (if (or (target-aarch64?)
+             (target-riscv64?))
          `(("config" ,config)) ; for config.sub
          '()))
     (arguments
@@ -66,7 +67,8 @@ (define-public libdaemon
                                        ;; Hurd's console client.
                                        "--localstatedir=/var"))
              '())
-       ,@(if (and=> (%current-target-system) target-aarch64?)
+       ,@(if (or (target-aarch64?)
+                 (target-riscv64?))
              `(#:phases
                (modify-phases %standard-phases
                  (add-before 'configure 'update-config.sub
-- 
2.34.0

Message #8 received at 54599 <at> debbugs.gnu.org (full text, mbox):

From: fesoj000 <fesoj000 <at> gmail.com>
To: 54599 <at> debbugs.gnu.org
Subject: [PATCH] gnu: libdaemon: fix build for riscv64
Date: Mon, 28 Mar 2022 21:35:08 +0200

Actually, this fixex cross compiling using --target=riscv64-linux-gnu,
on real hardware it works without the patch.

Message #11 received at 54599 <at> debbugs.gnu.org (full text, mbox):

From: Thiago Jung Bauermann <bauermann <at> kolabnow.com>
To: fesoj000 <fesoj000 <at> gmail.com>
Cc: 54599 <at> debbugs.gnu.org
Subject: Re: [bug#54599] [PATCH] gnu: libdaemon: fix build for riscv64
Date: Mon, 28 Mar 2022 22:25:20 -0300

Hello,

Thanks for this patch! Just a few comments:

fesoj000 <fesoj000 <at> gmail.com> writes:

> * gnu/packages/libdaemon.scm: (native-inputs): Add check for riscv64 to
> include config
> * gnu/packages/libdaemon.scm: (arguments): Add check for riscv64 to add
> update-config.sub build step

In the changelog, the name of the package goes in the parentheses, and
the package attribute being changed in square brackets. For example:

* gnu/packages/libdaemon.scm (libdaemon)[native-inputs]: Add check for
riscv64 to include config.

Also the sentences should have a period at the end.

> ---
>  gnu/packages/libdaemon.scm | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/gnu/packages/libdaemon.scm b/gnu/packages/libdaemon.scm
> index 9dc851e823..e91b651e5a 100644
> --- a/gnu/packages/libdaemon.scm
> +++ b/gnu/packages/libdaemon.scm
> @@ -49,7 +49,8 @@ (define-public libdaemon
>               (file-name (string-append name "-" version ".tar.gz"))))
>      (build-system gnu-build-system)
>      (native-inputs
> -     (if (and=> (%current-target-system) target-aarch64?)
> +     (if (or (target-aarch64?)
> +             (target-riscv64?))
>           `(("config" ,config)) ; for config.sub
>           '()))
>      (arguments
> @@ -66,7 +67,8 @@ (define-public libdaemon
>                                         ;; Hurd's console client.
>                                         "--localstatedir=/var"))
>               '())
> -       ,@(if (and=> (%current-target-system) target-aarch64?)
> +       ,@(if (or (target-aarch64?)
> +                 (target-riscv64?))
>               `(#:phases
>                 (modify-phases %standard-phases
>                   (add-before 'configure 'update-config.sub

Before the patch, ‘native-inputs’ and ‘arguments’ were only changed when
cross-compiling on aarch64. After your patch, they are changed even for
native builds.

Functionally, it's not a problem but this changes the package's
derivation. Since the package has many dependents, it causes a lot of
other packages to be rebuilt:

popigai: guix refresh --list-dependent libdaemon 
Building the following 1496 packages would ensure 3175 dependent packages are rebuilt: …

Because of this, the patch can't be applied on the master branch. It
would have to go to core-updates.

So for the master branch, you need to keep the property of only making
changes to ‘native-inputs’ and ‘arguments’ when cross-compiling.

But I also suggest sending an additional patch for the core-updates
branch which unconditionally updates config.sub, regardless of the
architecture and regardless of whether it's a native compilation or a
cross one. This way, the next time Guix is ported to a new architecture
we won't need to update this package again.

-- 
Thanks
Thiago

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