conan-io/conan

[question] Cross-compilation with SCons and tool_requires

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#11,945 建立於 2022年8月23日

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Feedback please!complex: mediumcomponent: Buildhelp wantedtype: feature

描述

I am trying to setup cross-compilation with SCons where Conan provides the cross-compiler as a binary package. So, I have created a cross-compiler package which works fine with CMAKE when I add it as tool_requires and set the correct host profile.

For SCons however I am not sure how I can add the location of the cross-compiler binaries to the build environment. The SConscript_conan file does not contain anything regarding the packages installed via tool_requires. I would expect that they show up, so that I can add the BINPATH to the SCons environment. I can't add the pakckage as normal requires because then the build and host environments don't match anymore.

Does anyone have a suggestion what the recommend approach is for cross-compilation with SCons?

貢獻者指南

技術棧
pythoncpp
領域
build systemtooling
議題類型
feature
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
4
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
1-2 days
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
stale
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
mostly clear
前置要求
Conan package managerSCons build systemcross compilation concepts
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
25
研究方向
Investigate how Conan's SCons generator currently handles tool requires. The issue suggests that binaries from tool requires are not exposed to the SCons environment. Look at the SCons generator source code in Conan (likely conan/tools/scm or similar) to understand how dependencies are added. Consider adding an option to include tool requires paths, or document a workaround using environment variables in the SCons script. Engage with the assignee (@mention) to clarify the expected behavior and potential implementation.