NetBSD Problem Report #59430

From www@netbsd.org  Sat May 17 00:52:33 2025
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Message-Id: <20250517005232.91E8E1A9241@mollari.NetBSD.org>
Date: Sat, 17 May 2025 00:52:32 +0000 (UTC)
From: bcallah@openbsd.org
Reply-To: bcallah@openbsd.org
To: gnats-bugs@NetBSD.org
Subject: Revive pkgsrc on modern AIX
X-Send-Pr-Version: www-1.0

>Number:         59430
>Category:       pkg
>Synopsis:       Revive pkgsrc on modern AIX
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat May 17 00:55:01 +0000 2025
>Last-Modified:  Sat May 17 17:10:01 +0000 2025
>Originator:     Brian Callahan
>Release:        pkgsrc -current
>Organization:
OpenBSD
>Environment:
AIX localhost 2 7 000000000000
This is AIX 7.2 TL4
>Description:
pkgsrc cannot bootstrap on modern AIX. I fixed it.
>How-To-Repeat:
Install AIX, try to bootstrap pkgsrc.
>Fix:
I wrote a blog post detailing how I went about it here: https://briancallahan.net/blog/20250516.html

But if you just want the patch to make things work, it is here: https://github.com/ibara/patches/blob/main/aix-pkgsrc.diff

Thanks!

>Audit-Trail:
From: Thomas Klausner <wiz@gatalith.at>
To: bcallah@openbsd.org
Cc: NetBSD bugtracking <gnats-bugs@NetBSD.org>
Subject: Re: pkg/59430: Revive pkgsrc on modern AIX
Date: Sat, 17 May 2025 11:35:34 +0200

 --Mc8/gCV43M6GriRh
 Content-Type: text/plain; charset=us-ascii
 Content-Disposition: inline

 Thanks for the PR!

 I read your blog post, and found:

 > pkg_add: libnbcompat-20250303: warning: was built for a different platform: pkg_add: AIX/powerpc64 7.2 (pkg) vs. AIX/powerpc64 2 (this host)

 Can you please provide the outputs of:
 - pkg_info -Q OS_VERSION  some-binary-package.tgz
   # should be 7.2
 - uname -r
   # same
 - gcc -o uname uname.c; ./uname
   # this is the interesting part

 after saving the attachment as uname.c?

 Thanks,
  Thomas

 --Mc8/gCV43M6GriRh
 Content-Type: text/x-c; charset=us-ascii
 Content-Disposition: attachment; filename=uname.c

 #include <errno.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <sys/utsname.h>

 struct utsname host_uname;
 int main(int argc, char *argv[]) {
   if (uname(&host_uname) < 0) {
     printf("uname failed: %s\n", strerror(errno));
     return 1;
   }
   printf("version: %s\n", host_uname.version);
   printf("release: %s\n", host_uname.release);
   return 0;
 }

 --Mc8/gCV43M6GriRh--

From: "Callahan, Brian Robert" <callab5@rpi.edu>
To: Thomas Klausner <wiz@gatalith.at>,
        "bcallah@openbsd.org"
	<bcallah@openbsd.org>
Cc: NetBSD bugtracking <gnats-bugs@NetBSD.org>
Subject: Re: [EXTERNAL]Re: pkg/59430: Revive pkgsrc on modern AIX
Date: Sat, 17 May 2025 12:52:21 +0000

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From: Thomas Klausner <wiz@gatalith.at>
To: "Callahan, Brian Robert" <callab5@rpi.edu>
Cc: "bcallah@openbsd.org" <bcallah@openbsd.org>,
	NetBSD bugtracking <gnats-bugs@NetBSD.org>
Subject: Re: pkg/59430: Revive pkgsrc on modern AIX
Date: Sat, 17 May 2025 19:08:03 +0200

 Hi Brian!

 Thanks for the information.

 I don't have a solution for you, but here are some hints, perhaps you
 can come up with something:

 OS_VERSION is set in pkgsrc/mk/bsd.prefs.mk, and there's a special
 case for AIX:

 .elif ${NATIVE_OPSYS} == "AIX"
 .  if exists(/usr/bin/oslevel)
 _NATIVE_OS_VERSION!=    /usr/bin/oslevel
 .  else
 _NATIVE_OS_VERSION!=    echo `${UNAME} -v`.`${UNAME} -r`
 .  endif
 NATIVE_OS_VERSION=              ${_NATIVE_OS_VERSION:C/([0-9]*\.[0-9]*).*/\1/}

 (OS_VERSION is later set using NATIVE_OS_VERSION).

 This means, if /usr/bin/oslevel is installed, its output is used as a
 version; if not, 'uname -v' and 'uname -r' are concatenated, which
 would lead to the 7.2 you see.

 (Is oslevel installed? What does it return?)

 The other version number to compare against is in
 pkgsrc/pkgtools/pkg_install/files/add/perform.c:

                   if (uname(&host_uname) < 0) {
 		      ...
 		  }

                   normalise_platform(host_name: &host_uname);
                   effective_opsys = OPSYS_NAME;
                   effective_os_version = host_uname.release;

 I.e. here, just host_uname.release is used, which is equivalent to
 'uname -r'.

 I didn't find any preprocessor symbol I could use in the C code to add
 AIX-specific changes to use the combination of host_uname.version and
 host_uname.release here. There[1] are some that check for the xlc
 compiler, but you're using gcc, so they won't help. Do you know of
 any?

 Btw, I think it would be a good idea to send your blog post as an
 email to the tech-pkg mailing list, I think you might get useful
 feedback there.

 Cheers,
  Thomas

 [1] https://www.ibm.com/docs/en/xl-c-aix/13.1.3?topic=macros-indicating-xl-compiler

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