mesonbuild/meson

Allow specifying dependency information in the cross-info file

Open

#1,524 opened on Mar 27, 2017

View on GitHub
 (5 comments) (0 reactions) (0 assignees)Python (4,978 stars) (1,465 forks)batch import
crossenhancementhelp wantedmesa/wayland/xorg

Description

Ref. https://cgit.freedesktop.org/mesa/demos/commit/?h=meson&id=5671d1975c4c4a8457fc1664a188bbee22968d5a

pkg-config isn't always available, so we want a way to specify it in the cross-info file. A new field in the properties section makes sense:

[properties]
has_function_printf = true
dependency_glew_libs = ['-L/path/to/glew/lib/', '-lglew32']
dependency_glew_cflags = ['-I/path/to/glew/include']

This has exactly the same semantics as pkg-config Libs: and Cflags: fields.

We would, as always, automatically translate this to per-compiler arguments.

@TingPing had the idea of also being able to specify this dependency information in the form of a dependency-file which would put all this into a separate file 'template' which would allow it to be shared across cross-info files, and would also allow it to be used for native builds. Let's discuss that in a different issue.

Contributor guide

Tech stack
python
Domain
build system
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
Meson build system basicscross compilation conceptspkg config
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
50
Research direction
Examine the current cross info file handling in Meson, particularly the `properties` section. Look at the referenced commit in the mesa/demos repository for inspiration. Investigate how Meson currently parses cross info files and integrates with pkg config to implement a similar mechanism for specifying dependency libraries and cflags directly in the properties. Ensure the implementation automatically translates to per compiler arguments as described.
Allow specifying dependency information in the cross-info file · mesonbuild/meson#1524 | Good First Issue