Question

我想编译Python;我从Github克隆了存储库：

git clone --depth=1 --branch=2.7 https://github.com/python/cpython.git

配置工作但构建失败，因为找不到Python：

$ cd cpython
$ ./configure
...
$ make
/bin/mkdir -p Include
./Parser/asdl_c.py -h Include ./Parser/Python.asdl
/usr/bin/env: python: No such file or directory
Makefile:718: recipe for target 'Include/Python-ast.h' failed
make: *** [Include/Python-ast.h] Error 127

这是因为Include/Python-ast.h比Parser/asdl_c.py更新，make --debug告诉{/ 1}}

...
Prerequisite 'Parser/Python.asdl' is newer than target 'Include/Python-ast.h'.
Prerequisite 'Parser/asdl.py' is newer than target 'Include/Python-ast.h'.
Prerequisite 'Parser/asdl_c.py' is newer than target 'Include/Python-ast.h'.
Must remake target 'Include/Python-ast.h'.

确实，在Python脚本之后克隆了一些标题：

$ ls --full-time Include/Python-ast.h Parser/asdl_c.py
-rw-r--r-- 1 piwi piwi 21113 2016-09-08 15:22:32.984000000 +0200 Include/Python-ast.h
-rwxr-xr-x 1 piwi piwi 41414 2016-09-08 15:22:33.248000000 +0200 Parser/asdl_c.py

在这种特定情况下，触摸标题可以解决问题：

$ touch Include/Python-ast.h
$ make
... compiles ...

是否有适当的方法来阻止此行为？

谢谢，

Answer 1

显然这是已知的问题。结帐后使用make touch，然后make应该有效。

请参阅https://github.com/python/cpython/blob/b72e279bfa0eece094f652b9fc329200d5964ffa/Makefile.pre.in#L1504

尝试编译Python失败，因为文件＆＃39;时间戳

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