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I'm trying to compile polybar, and I get a long compilation error which is related to xcb (apparently), I have the log file here; I've read through the polybar wiki and I came upon the solution of downgrading xcb-proto to 1.11, and so I followed through with the process, although I'm not really sure how to check ther version (the logs tell me that each X-extension has version 1.13 though?)

Nonetheless I've tried compiling with both Clang and GCC using build.sh, all to no avail, my question is how I can downgrade packages: 

-- [X]   xcb-randr (1.13.1)
-- [X]   xcb-randr (monitor support) (1.13.1)
-- [X]   xcb-composite (1.13.1)
-- [X]   xcb-xkb (1.13.1)
[...]

to version 1.11?

EDIT

I have tried to remove the libxcb* packages from my Debian, and before I wrote yes on the prompt to continue I noticed it would make redundant a lot of packages that would otherwise be beneficial to my system, so I don't see how I can hotplug a downgrade without removing the packages I want to downgrade to begin with.

unazed spectaculum
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2 Answers2

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I'll try to answer to original issue of polybar not compiling. It's most likely not an issue with the version installed through apt. That particular issue only occurs on systems where xcb-proto is version 1.12 and libxcb-randr0-dev is 1.11, but since all are 1.13.1, you should be fine.

The issue you have in your logs:

ERROR: could not calc required_start_align of Struct "xcb.Setup

Appeared before, here. There the issue was that anaconda was used for python, which caused loads of problems.

There are instructions on the wiki on how to compile polybar while anaconda is installed (without uninstalling anaconda). The easiest way that people have reported working is to run conda deactivate in the terminal where you are compiling polybar before compiling. Also make sure that you completely redownload the tar-archive (or do a clean git clone) before building.

Patrick Ziegler
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  • that appears to cause more confusion since i don't have anaconda installed, all my builds of python are source-built besides the system python (i have python 3.7.3 and 3.8.0b3); i'll try to downgrade my main `python3` back to 3.7.3 -- edit: it appears polybar only cares about python 2 so i don't see how it should matter – unazed spectaculum Aug 17 '19 at 17:15
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Surprisingly I solved this by simplying recloning the polybar repository, configuring with -DWITH_XRANDR_MONITORS=0 (although this isn't necessary I don't think) and voila. I have no idea why this worked but the only significant things I have done are reinstall xcb-proto after downgrading it (supposedly) to version 1.11.

unazed spectaculum
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