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Date: Thu, 13 Nov 2025 14:56:47 +0530
From: Trupti &lt;trupti@linux.ibm.com&gt;
To: Submit &lt;submit@bugs.debian.org&gt;
Subject: arb: FTBFS: error: invalid parameter combination for AltiVec
 intrinsic '__builtin_vec_ld'
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Package: src:arb
Version: 6.0.6-8
Severity: serious
Tags: ftbfs forky sid
X-Debbugs-Cc: debian-powerpc@lists.debian.org
User: debian-powerpc@lists.debian.org
Usertags: ppc64el


Dear maintainer,

arb FTBFS on ppc64el with below error:

../HEADERLIBS/eigen/Eigen/src/Core/arch/AltiVec/PacketMath.h: In 
function 'typename Eigen::ei_packet_traits&lt;T&gt;::type 
Eigen::ei_pset1(const Scalar&amp;) [with Scalar = float; typename 
ei_packet_traits&lt;T&gt;::type = __vector(4) float]':
../HEADERLIBS/eigen/Eigen/src/Core/arch/AltiVec/PacketMath.h:194:40: 
error: declaration does not declare anything [-fpermissive]
../HEADERLIBS/eigen/Eigen/src/Core/arch/AltiVec/PacketMath.h:194:3: 
error: expected primary-expression before 'float'
../HEADERLIBS/eigen/Eigen/src/Core/arch/AltiVec/PacketMath.h:195:3: 
error: 'af' was not declared in this scope
../HEADERLIBS/eigen/Eigen/src/Core/arch/AltiVec/PacketMath.h:196:18: 
error: invalid parameter combination for AltiVec intrinsic 
'__builtin_vec_ld'
../HEADERLIBS/eigen/Eigen/src/Core/arch/AltiVec/PacketMath.h: In 
function 'typename Eigen::ei_packet_traits&lt;T&gt;::type 
Eigen::ei_pset1(const Scalar&amp;) [with Scalar = int; typename 
ei_packet_traits&lt;T&gt;::type = __vector(4) int]':
../HEADERLIBS/eigen/Eigen/src/Core/arch/AltiVec/PacketMath.h:203:38: 
error: declaration does not declare anything [-fpermissive]
../HEADERLIBS/eigen/Eigen/src/Core/arch/AltiVec/PacketMath.h:203:3: 
error: expected primary-expression before 'int'
../HEADERLIBS/eigen/Eigen/src/Core/arch/AltiVec/PacketMath.h:204:3: 
error: 'ai' was not declared in this scope
../HEADERLIBS/eigen/Eigen/src/Core/arch/AltiVec/PacketMath.h:205:18: 
error: invalid parameter combination for AltiVec intrinsic 
'__builtin_vec_ld'
../HEADERLIBS/eigen/Eigen/src/Core/arch/AltiVec/PacketMath.h: In 
function 'void Eigen::ei_pstoreu(Scalar*, const Packet&amp;) [with Scalar = 
float; Packet = __vector(4) float]':
../HEADERLIBS/eigen/Eigen/src/Core/arch/AltiVec/PacketMath.h:222:23: 
warning: 'vec_lvsl' is deprecated for little endian; use assignment for 
unaligned loads and stores [-Wdeprecated]
../HEADERLIBS/eigen/Eigen/src/Core/arch/AltiVec/PacketMath.h:224:19: 
warning: 'vec_lvsr' is deprecated for little endian; use assignment for 
unaligned loads and stores [-Wdeprecated]
../HEADERLIBS/eigen/Eigen/src/Core/arch/AltiVec/PacketMath.h: In 
function 'void Eigen::ei_pstoreu(Scalar*, const Packet&amp;) [with Scalar = 
int; Packet = __vector(4) int]':
../HEADERLIBS/eigen/Eigen/src/Core/arch/AltiVec/PacketMath.h:240:23: 
warning: 'vec_lvsl' is deprecated for little endian; use assignment for 
unaligned loads and stores [-Wdeprecated]
../HEADERLIBS/eigen/Eigen/src/Core/arch/AltiVec/PacketMath.h:242:19: 
warning: 'vec_lvsr' is deprecated for little endian; use assignment for 
unaligned loads and stores [-Wdeprecated]
../HEADERLIBS/eigen/Eigen/src/Core/arch/AltiVec/PacketMath.h: In 
function 'typename Eigen::ei_unpacket_traits&lt;T&gt;::type 
Eigen::ei_pfirst(const Packet&amp;) [with Packet = __vector(4) float; 
typename ei_unpacket_traits&lt;T&gt;::type = float]':
../HEADERLIBS/eigen/Eigen/src/Core/arch/AltiVec/PacketMath.h:251:40: 
error: declaration does not declare anything [-fpermissive]
../HEADERLIBS/eigen/Eigen/src/Core/arch/AltiVec/PacketMath.h:251:3: 
error: expected primary-expression before 'float'
../HEADERLIBS/eigen/Eigen/src/Core/arch/AltiVec/PacketMath.h:252:16: 
error: 'af' was not declared in this scope; did you mean 'a'?
../HEADERLIBS/eigen/Eigen/src/Core/arch/AltiVec/PacketMath.h: In 
function 'typename Eigen::ei_unpacket_traits&lt;T&gt;::type 
Eigen::ei_pfirst(const Packet&amp;) [with Packet = __vector(4) int; typename 
ei_unpacket_traits&lt;T&gt;::type = int]':
../HEADERLIBS/eigen/Eigen/src/Core/arch/AltiVec/PacketMath.h:258:38: 
error: declaration does not declare anything [-fpermissive]
../HEADERLIBS/eigen/Eigen/src/Core/arch/AltiVec/PacketMath.h:258:3: 
error: expected primary-expression before 'int'
../HEADERLIBS/eigen/Eigen/src/Core/arch/AltiVec/PacketMath.h:259:16: 
error: 'ai' was not declared in this scope; did you mean 'a'?
In file included from ../HEADERLIBS/eigen/Eigen/Array:28,
                  from ../HEADERLIBS/eigen/Eigen/Dense:2:



You can refer 
https://buildd.debian.org/status/fetch.php?pkg=arb&amp;arch=ppc64el&amp;ver=6.0.6-8&amp;stamp=1744759359&amp;raw=0 
for full build log on ppc64el.


Thanks,
Trupti
]