From: Debian Science Team <debian-science-maintainers@lists.alioth.debian.org>
Date: Sun, 14 Sep 2025 09:34:16 +0000 (+0200)
Subject: Fix FTBFS on ppc64el with gcc-15
X-Git-Tag: archive/raspbian/0.3.30+ds-3+rpi1^2~1
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=343e0d2a1ff3e101967cf94e686a9f3ea188f6a9;p=openblas.git

Fix FTBFS on ppc64el with gcc-15

Origin: upstream, https://github.com/OpenMathLib/OpenBLAS/pull/5409/commits/a3b9c933c59809027937c7708e1d996988c112f2
Bug: https://github.com/OpenMathLib/OpenBLAS/issues/5372
Bug-Debian: https://bugs.debian.org/1114016
Reviewed-by: Sébastien Villemot <sebastien@debian.org>
Last-Update: 2025-09-14

The test failures are caused by incorrect clobber rules in asm inline
statements.
This patch is only a temporary workaround until a permanent fix is found.
Last-Update: 2025-09-14
Gbp-Pq: Name ppc64el-gcc-15.patch
---

diff --git a/kernel/power/dgemv_n.c b/kernel/power/dgemv_n.c
index ac365b3..303d960 100644
--- a/kernel/power/dgemv_n.c
+++ b/kernel/power/dgemv_n.c
@@ -147,7 +147,7 @@ int CNAME(BLASLONG m, BLASLONG n, BLASLONG dummy1, FLOAT alpha, FLOAT *a, BLASLO
 	BLASLONG m3;
 	BLASLONG n2;
 	BLASLONG lda4 =  lda << 2;
-	FLOAT xbuffer[8] __attribute__ ((aligned (16)));
+	volatile FLOAT xbuffer[8] __attribute__ ((aligned (16)));
 	FLOAT *ybuffer;
 
         if ( m < 1 ) return(0);