#1129181 "netgen: causes FTBFS 'error: cannot convert ‘__Int64x2_t’ to ‘uint64x2_t’'"

Package:
src:netgen
Source:
src:netgen
Submitter:
Matthias Klose
Date:
2026-02-28 07:45:03 UTC
Severity:
normal
Tags:
#1129181#5
Date:
2026-02-27 06:31:18 UTC
From:
To:
seen in
https://buildd.debian.org/status/fetch.php?pkg=freecad&arch=arm64&ver=1.0.2%2Bdfsg-4&stamp=1772150436&raw=0

[...]
In file included from /usr/include/netgen/core/simd.hpp:34,
                  from /usr/include/netgen/core/ngcore.hpp:16,
                  from /usr/include/netgen/include/mydefs.hpp:14,
                  from /usr/include/netgen/general/myadt.hpp:16,
                  from /usr/include/netgen/include/myadt.hpp:1,
                  from /usr/include/netgen/meshing/meshing.hpp:4,
                  from /usr/include/netgen/include/meshing.hpp:1,
                  from /usr/include/netgen/occ/occgeom.hpp:14,
                  from /usr/include/netgen/include/occgeom.hpp:1,
                  from
/build/reproducible-path/freecad-1.0.2+dfsg/src/3rdParty/salomesmesh/src/NETGENPlugin/NETGENPlugin_Mesher.cpp:106:
/usr/include/netgen/core/simd_arm64.hpp: In function
‘ngcore::SIMD<ngcore::mask64, 2> ngcore::operator==(SIMD<long int, 2>,
SIMD<long int, 2>)’:
/usr/include/netgen/core/simd_arm64.hpp:161:21: note: use
‘-flax-vector-conversions’ to permit conversions between vectors with
differing element types or numbers of subparts
   161 |     return vceqq_u64(a.Data(), b.Data());
       |            ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
/usr/include/netgen/core/simd_arm64.hpp:161:28: error: cannot convert
‘__Int64x2_t’ to ‘uint64x2_t’
   161 |     return vceqq_u64(a.Data(), b.Data());
       |                      ~~~~~~^~
       |                            |
       |                            __Int64x2_t
In file included from /usr/include/netgen/core/simd_arm64.hpp:1:
/usr/lib/gcc/aarch64-linux-gnu/15/include/arm_neon.h:7646:23: note:
initializing argument 1 of ‘uint64x2_t vceqq_u64(uint64x2_t, uint64x2_t)’
  7646 | vceqq_u64 (uint64x2_t __a, uint64x2_t __b)
       |            ~~~~~~~~~~~^~~
/usr/include/netgen/core/simd_arm64.hpp: In function
‘ngcore::SIMD<ngcore::mask64, 2> ngcore::operator>(SIMD<long int, 2>,
SIMD<long int, 2>)’:
/usr/include/netgen/core/simd_arm64.hpp:166:21: error: could not convert
‘vcgtq_s64(a.ngcore::SIMD<long int, 2>::Data(), b.ngcore::SIMD<long int,
2>::Data())’ from ‘uint64x2_t’ to ‘ngcore::SIMD<ngcore::mask64, 2>’
   166 |     return vcgtq_s64(a.Data(), b.Data());
       |            ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
       |                     |
       |                     uint64x2_t