返回Homebrew中的readline版本6.x修复Postgresql？ [英] Return to readline version 6.x in Homebrew to fix Postgresql?

问题描述

我不是Homebrew专家，但是我认为它已经在 9之后的某个时候将我从readline版本6.x升级到7.0。 / 15/16 ：

I'm no Homebrew expert but I think it has "upgraded" me from readline version 6.x to 7.0 sometime after 9/15/16:

eat@eric-macbook:Homebrew$ brew info readline
readline: stable 7.0 (bottled) [keg-only]
Library for command-line editing
https://tiswww.case.edu/php/chet/readline/rltop.html
/usr/local/Cellar/readline/7.0 (45 files, 2M)

这让我的9.4感到头痛。 5 Postgresql的自制版本（出于可比较性的原因，我需要较旧的9.4）：

This has caused headaches for my 9.4.5 Homebrew version of Postgresql (I need the older 9.4 for comparability reasons):

eat@eric-macbook:~$ psql --version
dyld: Library not loaded: /usr/local/opt/readline/lib/libreadline.6.dylib
  Referenced from: /usr/local/Cellar/postgresql/9.4.5/bin/psql
  Reason: image not found
Trace/BPT trap: 5

不幸的是我在Homebrew上找不到6.x版本的readline可以还原为-似乎只有7.0可用（？）。

Unfortunately I can't find a 6.x version of readline on Homebrew to revert to - only 7.0 seems to be available(?).

我的问题是双重的：

• readline版本与我的postgres /原因不符/ psql问题？


• 如果是，我如何使用Homebrew返回6.x来解决问题？

提前谢谢！

推荐答案

回答特定问题。

您可以在已安装的brew软件包版本之间切换，这些版本仍在本地存在，如该问题所述：
自制软件是否安装了特定版本的公式？

You can switch between version of installed brew packages which are still around locally as explained in this question: Homebrew install specific version of formula?

要降级到readline 6.x，以下命令对我有用：

To downgrade to readline 6.x the following command worked for me:

brew switch readline 6.3.8

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