Your message dated Thu, 01 Jan 2026 16:21:14 +0000
with message-id <[email protected]>
and subject line Bug#1108103: fixed in lammps 20251210+dfsg-1
has caused the Debian Bug report #1108103,
regarding lammps: improve build-depends for cross building
to be marked as done.
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1108103: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1108103
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--- Begin Message ---
Source: lammps
Version: 20250204+dfsg.1-2
Tags: patch
User: [email protected]
Usertags: cross-satisfiability
lammps cannot be cross built for several reasons relating to its
Build-Depends. I looked into it and propose a patch solving some of
them:
* gfortran requests a host architecture compiler executable. If it were
installable, it could not be run. For cross building, we need to add
a -for-host suffix, but it comes with a catch. The compiler must now
be prefixed with the host architecture even for native builds. To
that end, dpkg's buildtools.mk may export suitable variables.
* sphinx notoriously poses issues to cross satisfiability. Fortunately,
most of the pieces already reside in B-D-I, so I propose to move the
remainders there as well.
* python3-all-dev needs to be split into two dependencies for cross
building.
* libvtk9-dev transitively depends on a host Python interpreter. I
don't have a solution for this and it is a larger problem to be
solved elsewhere.
Please consider applying the attached patch that solves the first three
issues in the forky cycle and close this bug when doing so.
Helmut
diff --minimal -Nru lammps-20250204+dfsg.1/debian/changelog
lammps-20250204+dfsg.1/debian/changelog
--- lammps-20250204+dfsg.1/debian/changelog 2025-03-03 06:03:37.000000000
+0100
+++ lammps-20250204+dfsg.1/debian/changelog 2025-06-20 08:08:10.000000000
+0200
@@ -1,3 +1,14 @@
+lammps (20250204+dfsg.1-2.1) UNRELEASED; urgency=medium
+
+ * Non-maintainer upload.
+ * Improve cross build satisfiability. (Closes: #-1)
+ + Annotate gfortran dependency with -for-host and let dpkg's
+ buildtools.mk supply the prefixed fortran compiler.
+ + Move all sphinx dependencies to B-D-I.
+ + Multiarchify python B-D.
+
+ -- Helmut Grohne <[email protected]> Fri, 20 Jun 2025 08:08:10 +0200
+
lammps (20250204+dfsg.1-2) unstable; urgency=medium
* [a7ad696] Move ipython dep to common section
diff --minimal -Nru lammps-20250204+dfsg.1/debian/control
lammps-20250204+dfsg.1/debian/control
--- lammps-20250204+dfsg.1/debian/control 2025-03-03 06:03:21.000000000
+0100
+++ lammps-20250204+dfsg.1/debian/control 2025-06-20 08:08:10.000000000
+0200
@@ -9,7 +9,7 @@
dh-python,
pybuild-plugin-pyproject,
python3-setuptools,
- gfortran | fortran-compiler,
+ gfortran-for-host | fortran-compiler,
libavcodec-dev,
libeigen3-dev,
libfftw3-dev,
@@ -24,11 +24,12 @@
mpi-default-bin,
mpi-default-dev,
ocl-icd-opencl-dev | opencl-dev,
- python3-all-dev,
+ python3-all-dev:native,
+ libpython3-all-dev,
python3-ipython,
- python3-sphinx,
voro++-dev
-Build-Depends-Indep: libjs-sphinxdoc,
+Build-Depends-Indep: dh-sequence-sphinxdoc,
+ libjs-sphinxdoc,
libjs-jquery,
libjs-mathjax,
libjs-underscore,
@@ -40,6 +41,7 @@
sphinx-rtd-theme-common,
latexmk,
htmldoc,
+ python3-sphinx,
python3-sphinx-tabs,
python3-sphinxcontrib.jquery,
python3-sphinxcontrib.spelling,
diff --minimal -Nru lammps-20250204+dfsg.1/debian/rules
lammps-20250204+dfsg.1/debian/rules
--- lammps-20250204+dfsg.1/debian/rules 2025-03-02 22:48:50.000000000 +0100
+++ lammps-20250204+dfsg.1/debian/rules 2025-06-20 08:08:10.000000000 +0200
@@ -1,7 +1,9 @@
#!/usr/bin/make -f
BUILDDIR = $(CURDIR)/debian/build
-DEB_HOST_MULTIARCH ?= $(shell dpkg-architecture -qDEB_HOST_MULTIARCH)
+include /usr/share/dpkg/architecture.mk
+DPKG_EXPORT_BUILDTOOLS := 1
+include /usr/share/dpkg/buildtools.mk
PY3VER_DEFAULT := $(shell py3versions -dv)
export PRTE_MCA_rmaps_default_mapping_policy=:oversubscribe
@@ -11,7 +13,7 @@
disable_auto_test_archs_simpl = mips64el
%:
- dh $@ --with python3,sphinxdoc --sourcedirectory=cmake
--builddirectory=$(BUILDDIR)
+ dh $@ --with python3 --sourcedirectory=cmake
--builddirectory=$(BUILDDIR)
override_dh_auto_configure:
dh_auto_configure -- \
--- End Message ---
--- Begin Message ---
Source: lammps
Source-Version: 20251210+dfsg-1
Done: Drew Parsons <[email protected]>
We believe that the bug you reported is fixed in the latest version of
lammps, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to [email protected],
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Drew Parsons <[email protected]> (supplier of updated lammps package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing [email protected])
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
Format: 1.8
Date: Fri, 02 Jan 2026 02:42:27 +1100
Source: lammps
Architecture: source
Version: 20251210+dfsg-1
Distribution: unstable
Urgency: medium
Maintainer: Debian Science Maintainers
<[email protected]>
Changed-By: Drew Parsons <[email protected]>
Closes: 1108103
Changes:
lammps (20251210+dfsg-1) unstable; urgency=medium
.
* Team upload.
* New upstream release
- update debian/copyright for dropped src lib dirs compress kim
netcdf python quip voronoi vtk awpmd poems. EXAMPLES are still
available.
- Build-Depends-Indep: python3-sphinx-sitemap
* build EXTRA-COMPUTE package to enable calculation of stress tensor
profiles
* Improve cross build satisfiability. Closes: Bug#1108103
+ Annotate gfortran dependency with -for-host and let dpkg's
buildtools.mk supply the prefixed fortran compiler.
+ Move all sphinx dependencies to B-D-I.
+ Multiarchify python B-D.
+ patch by Helmut Grohne
* after dh_auto_clean: delete generated doc files: doc/html,
various doc/src/*s.rst, doc/utils/.../lammps_theme/search.html
* update debian patch 20_set_potentials_path.patch to current
Python API (PyUnicode_FromString)
* drop redundant debian/source/lintian-overrides
source-is-missing [doc/html/*.html] is now mismatched
* Standards-Version: 4.7.3
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