Static boost dependencies do not include transitive dependencies · mesonbuild/meson#15457

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boostbugdependencieshelp wanted

描述

Describe the bug Using dependency('boost', static: true) for some boost module that depends on another boost module, then (assuming that a static version of the boost module was found) the latter boost module is not included in the dependency, possibly causing linker errors.

To Reproduce

meson.build:

project('repro', 'cpp')
executable('repro', 'repro.cpp', dependencies: dependency('boost', modules: ['locale'], static: true))

repro.cpp:

#include <boost/locale/util.hpp>

int main(int argc, char **argv) {
    auto locale = boost::locale::generator().generate("");
    return 0;
}

Configuring and compiling this on Arch Linux (with boost installed) will result in linker errors due to missing the thread module. Removing the static: true will link without issues.

Expected behavior Transitive dependencies are included when linking statically, as they are for pkg-config dependencies.

Note This is easy to work around as a meson user so I don't think it's a very pressing issue. But I ran into this and did not find any issues about this yet, so I am reporting it here for future reference.

System parameters

Native build
Tested on Arch Linux and Debian trixie
Python 3.13.11 on Arch Linux
Meson 1.10.0
Ninja 1.13.2

贡献者指南

技术栈: pythoncpp
领域: build system
议题类型: bug
难度: 3
预计时间: 1-2 days
活动状态: fresh
清晰度: clear
前置要求: Knowledge of Meson build systemUnderstanding of Boost module dependenciesFamiliarity with static linking concepts
新手友好度: 45
研究方向: Examine the Boost dependency handling code in mesonbuild/dependencies/boost.py. Understand how Meson collects dependencies for pkg config dependencies (which handle transitives) and apply similar logic for static Boost. Focus on the 'static' parameter and ensure all transitive Boost modules are included when linking statically. Check if there are any existing tests for Boost dependencies.