如何将 scons 指向安装在我的主目录中的不同编译器？

发布于 2024-09-10 12:57:21 字数 359 浏览 7 评论 0 原文

我尝试编辑 SConstruct 以指向不同的 gcc 编译器，但它似乎总是使用 /usr/bin/gcc 和 /usr/bin/g++ 中定义的编译器。

env = DefaultEnvironment()
env['CC'] = '/home/aaron/devel/bin/gcc'
env['CXX'] = '/home/aaron/devel/bin/g++'

我做错了什么？另外，有没有一种方法可以使用类似以下内容在命令行上指定不同的编译器：

scons cxx=/home/aaron/devel/bin/g++

我已经疯狂地尝试让这项工作起作用。谢谢！

原文

I have tried editing SConstruct to point to a different gcc compiler but it always seems to use the one defined in /usr/bin/gcc and /usr/bin/g++.

env = DefaultEnvironment()
env['CC'] = '/home/aaron/devel/bin/gcc'
env['CXX'] = '/home/aaron/devel/bin/g++'

What am I doing wrong? Also, is there a way to specify a different compiler on the command line using something like:

scons cxx=/home/aaron/devel/bin/g++

I've gone crazy trying to make this work. Thanks!

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凹づ凸ル 2024-09-17 12:57:21

在“为什么 SCons 找不到我的编译器/链接器/等？”中有一个建议。在SCons wiki？对于您的情况，即

path = ['/path/to/other/compiler/bin', '/bin', '/usr/bin',]
env = Environment(ENV = {'PATH' : path})

使用您想要的内容创建您自己的环境，例如 $PATH （有关环境的其他有用建议位于同一 wiki 页面中）。

要将您自己的选项添加到 scons 命令行，请按照文档，您应该能够使用 AddOption，请参阅第 12.1.5 节（但是，我自己还没有尝试过这个）。

There is a suggestion in "Why doesn't SCons find my compiler/linker/etc.?" in the SCons wiki? For your case, that would be

path = ['/path/to/other/compiler/bin', '/bin', '/usr/bin',]
env = Environment(ENV = {'PATH' : path})

i.e., make your own environment with exactly the content you want, such as the $PATH (other bits of useful advice about environments are close by in the same wiki page).

To add your own options to scons' command line, per the docs, you should be able to use AddOption, see section 12.1.5 (but, I have not tried this one myself).