add fix_build_with_32_bits_MMX.patch to fix building packages on i586 that do not define _mm_cvtm64_si64

fix_build_with_32_bits_MMX.patch

@@ -0,0 +1,35 @@
+From b7fa865fa6b06d97d424c500fd1c4bc44c096359 Mon Sep 17 00:00:00 2001
+From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+Date: Sun, 1 Nov 2020 22:46:18 +0100
+Subject: [PATCH] openpgm/pgm/checksum.c: fix build with 32 bits MMX
+
+Build with i386-pentium-mmx or i686 is broken since version 5-3-128 and
+https://github.com/steve-o/openpgm/commit/b276dc15be5d4e6e1143b9de25d09f63f9c85135
+because _mm_cvtm64_si64 is undefined resulting in the following build
+failure for example on zeromq:
+
+/srv/storage/autobuild/run/instance-3/output-1/host/opt/ext-toolchain/bin/../lib/gcc/i586-buildroot-linux-musl/8.3.0/../../../../i586-buildroot-linux-musl/bin/ld: /srv/storage/autobuild/run/instance-3/output-1/host/i586-buildroot-linux-musl/sysroot/usr/lib32/libpgm-5.3.so.0: undefined reference to `_mm_cvtm64_si64'
+
+So use the fallback if __x86_64__ is not defined
+
+Fixes:
+ - http://autobuild.buildroot.org/results/01d9be37e8a743307128f53f41785654c9971e1a
+
+Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+---
+ openpgm/pgm/checksum.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/openpgm/pgm/checksum.c b/openpgm/pgm/checksum.c
+index fef89bce2..8d8dd3f32 100644
+--- a/checksum.c
++++ b/checksum.c
+@@ -948,7 +948,7 @@ do_csumcpy_mmx (
+ 
+ 		sum = _mm_add_pi32 (sum, lo);
+ 		sum = _mm_add_pi32 (sum, hi);
+-#if 1
++#if defined(__x86_64__)
+ 		*(int64_t*)dst = _mm_cvtm64_si64 (tmp);
+ #else		
+ 		((int*)dst)[1] = _mm_cvtsi64_si32 (tmp);

openpgm.changes

@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Tue Nov 25 12:09:32 UTC 2025 - Giacomo Comes <gcomes.obs@gmail.com>
+
+- add fix_build_with_32_bits_MMX.patch to fix building packages on
+  i586 that do not define _mm_cvtm64_si64
+
 -------------------------------------------------------------------
 Sun Jun 18 13:50:39 UTC 2023 - bluca@debian.org
 

openpgm.spec

@@ -2,7 +2,7 @@
 #
 # spec file for package openpgm
 #
-# Copyright (c) 2023 SUSE LLC
+# Copyright (c) 2025 SUSE LLC and contributors
 # Copyright (c) 2012 Pascal Bleser <pascal.bleser@opensuse.org>
 #
 # All modifications and additions to the file contributed by third parties
@@ -35,6 +35,8 @@ Source:         https://github.com/steve-o/openpgm/archive/release-%{tarball_ver
 Source99:       baselibs.conf
 # PATCH-FIX-UPSTREAM https://github.com/steve-o/openpgm/pull/74
 Patch0:         Mark-pgm_family_string-as-inline.patch
+# PATCH-FIX-UPSTREAM https://github.com/steve-o/openpgm/commit/b7fa865fa6b06d97d424c500fd1c4bc44c096359
+Patch1:         fix_build_with_32_bits_MMX.patch
 BuildRequires:  autoconf
 BuildRequires:  automake
 BuildRequires:  gcc-c++