SCons- *** 未找到 SConstruct 文件 [英] SCons- *** No SConstruct file found

问题描述

使用安装的 SCons# cd scons-2.3.0# python setup.py install

安装后，当我尝试运行 scons 时，出现以下错误.

scons:* 未找到 SConstruct 文件.文件/usr/local/lib/scons-2.3.0/SCons/Script/Main.py"，第905行，在_main

如何克服这个???

解决方案

使用SCons时指定SConstruct文件有3种方式，如下:

• 从项目的根目录执行 scons，这里应该有一个 SConstruct 文件.这是最标准的方式.

• 从项目的子目录中，在根目录下应该有一个 SConsctruct 文件，使用以下选项之一(如 scons -h 所见)执行 scons 告诉它查找 SConstruct 的目录结构

<块引用>

-u, --up, --search-up搜索 SConstruct 的目录树，在或构建目标在当前目录下.-U搜索 SConstruct 的目录树，构建 Default() 目标来自当地的 SConscript.

• 明确指定 SConstruct 文件的位置，这也可以从 scons -h

<块引用>

-f FILE, --file=FILE, --makefile=FILE, --sconstruct=FILE将 FILE 作为顶级 SConstruct 文件读取.

这是/home/notroot/projectDir目录下的一个示例项目，其目录结构如下:

SConstruct子目录/文件.hh子目录/file.cc

以下是使用上述不同选项的方法:

选项 1:

从项目根目录执行scons

# cd/home/notroot/projectDir# scons

选项 2:

从项目目录中执行 scons 并告诉它查找 SConstruct 的目录层次结构

# cd/home/notroot/projectDir/subdir# scons -u

选项 3:

从项目目录中执行 scons 并指定 SConstruct 的路径

# cd/home/notroot/projectDir/subdir# scons -f/home/notroot/projectDir/SConstruct

Installed SCons using # cd scons-2.3.0 # python setup.py install

After Installation, when i try to run scons , got the below error.

scons: * No SConstruct file found. File "/usr/local/lib/scons-2.3.0/SCons/Script/Main.py", line 905, in _main

How to overcome this ???

解决方案

There are 3 ways to specify the SConstruct file when using SCons, as follows:

• Execute scons from the root of the project, where there should be a SConstruct file. This is the most standard way.

• From a subdirectory of the project, where there should be a SConsctruct file at the root, execute scons with one of the following options (as seen by scons -h) to tell it to look up the directory structure for the SConstruct

-u, --up, --search-up
Search up directory tree for SConstruct, build targets at or 
below current directory.

-U
Search up directory tree for SConstruct, build Default() targets 
from local SConscript.

• Explicitly specify where the SConstruct file is, this is also available from scons -h

-f FILE, --file=FILE, --makefile=FILE, --sconstruct=FILE
Read FILE as the top-level SConstruct file.

Here is an example project in the directory /home/notroot/projectDir with the following directory structure:

SConstruct
subdir/file.hh
subdir/file.cc

Here is how to use the different options mentioned above:

Option 1:

Execute scons from the root project directory

# cd /home/notroot/projectDir
# scons

Option 2:

Execute scons from within the project directory and tell it to look up the dir hierarchy for the SConstruct

# cd /home/notroot/projectDir/subdir
# scons -u

Option 3:

Execute scons from within the project directory and specify the path of the SConstruct

# cd /home/notroot/projectDir/subdir
# scons -f /home/notroot/projectDir/SConstruct

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