Opened 7 years ago

Last modified 6 years ago

#18450 closed enhancement

Define library dependencies in .pxd files — at Version 20

Reported by: Jeroen Demeyer Owned by:
Priority: major Milestone: sage-6.8
Component: cython Keywords:
Cc: Jean-Pierre Flori, Sebastien Gouezel Merged in:
Authors: Jeroen Demeyer Reviewers:
Report Upstream: Fixed upstream, but not in a stable release. Work issues:
Branch: u/jdemeyer/define_library_dependencies_in__pxd_files (Commits, GitHub, GitLab) Commit: a1ad51c116ae506ff08e50100b6f83f7c0faec4d
Dependencies: #18455 Stopgaps:

Status badges

Description (last modified by Jeroen Demeyer)

Rather than defining libraries in module_list.py or in .pyx files, we should add them to the .pxd files where the declarations are.

In this branch, we do this as proof-of-concept for pari and gmp. Other tickets can be opened later for other libraries. We still leave the libraries explicitly in module_list.py when needed as dependency of another library, for example mpfr depends on gmp.

One annoying part is that the order of libraries is not defined, so we need to manually re-order them using one global library order. Since the order of libraries currently specified in src/module_list.py is far from a DAG, many extensions will be compiled with a different library order than before.

To clean up, we also remove the explicit mention of stdc++ for c++ code (which is automatically added anyway).


These are all modules where the list of libraries was actually changed:

These were probably underlinked before:

  • sage/rings/polynomial/pbori: added gmp
  • sage/rings/real_arb (optional): added gmp

These use inline functions or macros of libraries but don't use exported functions. So they don't need to link to the library, but it's added anyway:

  • sage/rings/rational: added pari
  • sage/rings/padics/common_conversion: added pari

Modules using the Sage/PARI interface but not directly using PARI will now link against pari. Strictly speaking, this is a bug but it's hard to avoid:

  • sage/rings/padics/padic_capped_absolute_element: added pari
  • sage/rings/padics/padic_capped_relative_element: added pari
  • sage/rings/padics/padic_fixed_mod_element: added pari
  • sage/rings/real_double: added pari

This branch adds gmp for all modules where bitsets are used. Some bitset functions require GMP, others do not. These modules were only using the ones not implemented using GMP:

  • sage/combinat/debruijn_sequence: added gmp
  • sage/combinat/words/word_char: added gmp
  • sage/graphs/base/static_sparse_backend: added gmp
  • sage/graphs/weakly_chordal: added gmp

Unused libraries are removed:

  • sage/combinat/partitions: removed gmp and mpfr
  • sage/graphs/graph_generators_pyx: removed gmp
  • sage/groups/semimonomial_transformations/semimonomial_transformation: removed gmp
  • sage/modular/modsym/p1list: removed gmp
  • sage/modules/vector_mod2_dense: removed gmp

We need 2 patches to upstream Cython to fix dependency handling:

Change History (20)

comment:1 Changed 7 years ago by Jeroen Demeyer

Description: modified (diff)

comment:2 Changed 7 years ago by Jeroen Demeyer

Cc: Jean-Pierre Flori added

comment:3 Changed 7 years ago by Jeroen Demeyer

Description: modified (diff)

comment:4 Changed 7 years ago by Jeroen Demeyer

Description: modified (diff)

comment:5 Changed 7 years ago by Jeroen Demeyer

Description: modified (diff)

comment:6 Changed 7 years ago by Jeroen Demeyer

Description: modified (diff)

comment:7 Changed 7 years ago by Jeroen Demeyer

Dependencies: #18455

comment:8 Changed 7 years ago by Jeroen Demeyer

Branch: u/jdemeyer/define_library_dependencies_in__pxd_files

comment:9 Changed 7 years ago by Jeroen Demeyer

Commit: 49029fd4db2d1a2874fab1011c8683ecd7a4bb02
Description: modified (diff)
Report Upstream: Fixed upstream, but not in a stable release.Reported upstream. No feedback yet.

New commits:

2ed346bRemove unneeded inclusions of cdefs.pxi
c1eb2b8Add Cython patches to improve handling of dependencies
49029fdDefine some library dependencies in .pxd/.pxi files

comment:10 Changed 7 years ago by Jeroen Demeyer

Description: modified (diff)

comment:11 Changed 7 years ago by Jeroen Demeyer

Description: modified (diff)

comment:12 Changed 7 years ago by Jeroen Demeyer

Description: modified (diff)

comment:13 Changed 7 years ago by Jeroen Demeyer

Description: modified (diff)

comment:14 Changed 7 years ago by Jeroen Demeyer

Description: modified (diff)

comment:15 Changed 7 years ago by Jeroen Demeyer

Description: modified (diff)

comment:16 Changed 7 years ago by Jeroen Demeyer

Description: modified (diff)

comment:17 Changed 7 years ago by Jeroen Demeyer

Description: modified (diff)

comment:18 Changed 7 years ago by git

Commit: 49029fd4db2d1a2874fab1011c8683ecd7a4bb02a1ad51c116ae506ff08e50100b6f83f7c0faec4d

Branch pushed to git repo; I updated commit sha1. This was a forced push. New commits:

57e9278More removals of cdefs.pxi
370106dEven more removals of cdefs
ca87ba3Add Cython patches to improve handling of dependencies
a1ad51cDefine some library dependencies in .pxd/.pxi files

comment:19 Changed 7 years ago by Jeroen Demeyer

Status: newneeds_review

comment:20 Changed 7 years ago by Jeroen Demeyer

Description: modified (diff)
Note: See TracTickets for help on using tickets.