mesonbuild/meson

Prioritize clang ObjC compiler over gobjc

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#6,222 创建于 2019年11月22日

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 (3 评论) (0 反应) (0 负责人)Python (4,978 star) (1,465 fork)batch import
good first issuehelp wanted

描述

Currently meson prefers the GNU ObjC compiler if both it and the clang one are available. This is a bit suboptimal as gobjc doesn't support ARC for example, and is generally left behind a decade or more in terms of ObjC features.

On macOS systems where both are installed you will likely not be able to compile anything using system APIs with gobjc.

In addition it might also be helpful to add some feature checks for ObjC compilers, e.g. if ARC or blocks are properly supported.

贡献者指南

技术栈
cpython
领域
build systemtoolingdeveloper experience
议题类型
feature
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
3
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
half day
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
stale
清晰度议题是否清楚说明期望改动、验收标准和下一步。
clear
前置要求
Familiarity with Meson build systemUnderstanding of compiler detection logicBasic knowledge of Objective C compilers
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
60
研究方向
Examine the compiler detection logic in mesonbuild/compilers/ directory, specifically how the order of compilers is defined for Objective C. The issue suggests swapping the priority so that clang is preferred over gobjc. Also consider implementing feature checks for ARC and blocks support using compiler flags.