使用 coreutils install 安装符号链接 [英] install symbolic links with coreutils install

问题描述

我构建了一个库，我想使用 coreutils install 将该库安装到 /usr/local/lib.构建结果如下所示:

I built a library and I want to install the library to /usr/local/lib using coreutils install. The result of the build looks as follows:

libfoo.so -> libfoo.so.1
libfoo.so.1 -> libfoo.so.1.1
libfoo.so.1.1

我想保留符号链接，并安装文件到/usr/local/lib.但是，如果我运行

I want to retain the symbolic links and install the files as is to /usr/local/lib. However, if I run

install libfoo* /usr/local/lib

符号链接已解析，/usr/local/lib 如下所示:

the symbolic links are resolved and /usr/local/lib looks as follows:

libfoo.so
libfoo.so.1
libfoo.so.1.1

换句话说，这些都是真实的文件，没有符号链接.

In other words, these are all real files and no symbolic links.

install 的手册页不包含任何有关解析符号链接的信息.我如何安装符号链接?

The manpage of install does not contain any information about resolving symbolic links. How can I install symbolic links?

推荐答案

我也想知道这个问题.在查看源代码之后，看起来install很漂亮在安装时积极解决链接.以下是它传递给 cp 的一些默认值；相关的以后不会被覆盖.

I wondered about this too. After looking at the source code it would appear that install is pretty aggressive about resolving links at install time. Here are some of the defaults it passes to cp; the relevant ones don't get overridden later.

cp_option_init (struct cp_options *x)
{
  cp_options_default (x);
  x->copy_as_regular = true;
  x->reflink_mode = REFLINK_NEVER;
  x->dereference = DEREF_ALWAYS;
  x->hard_link = false;
  x->preserve_links = false;
  x->preserve_mode = false;
  x->symbolic_link = false;
(...)

解决方法是使用 cp + chmod.

The workaround would be to use cp + chmod.

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