[SOLVED]Unable to emerge gtk+3 due to error in Adwaita files

IvanDSM · n00b Joined: 02 May 2017 Posts: 6 Location: Brazil

I have recently acquired a new notebook I'vem installing Gentoo on, and I have already finished doing everything in the Handbook. installed Gentoo on, but I'm trying to install LXDE and I am currently unable to emerge gtk+3 due to a strange error related to identifying the image types on the Adwaita theme:

DONAHUE · Posted: Sun Jul 09, 2017 5:04 pm Post subject:

emerge -s libpng
if not installed
emerge png
emerge gtk+
still broken ??
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IvanDSM · n00b Joined: 02 May 2017 Posts: 6 Location: Brazil

I've checked that, I have libpng:1.2, libpng:1.5 and libpng:0 (1.6.30) installed, still have the issue.
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DONAHUE · Posted: Sun Jul 09, 2017 11:30 pm Post subject:

does emerge -av gtk-engines-adwaita provide any info?
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IvanDSM · n00b Joined: 02 May 2017 Posts: 6 Location: Brazil

Emerging gtk-engines-adwaita also pulled in gtk+2. I was then able to emerge gtk+3. Thank you very much, DONAHUE!

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DONAHUE · Posted: Mon Jul 10, 2017 11:28 am Post subject:

Recommend editing the title of your first post to add [Solved]. This problem looks like it may happen to other people.
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pimiento · n00b Joined: 09 Dec 2017 Posts: 1

I still have that problem while I try to install Gentoo. The same problem with 3.22.16, 3.22.17, 3.22.19. I've tried to recompile libpng but the result is the same!

emerge --info => https://pastebin.com/raw/nJeYWrVS
emerge --pv "=x11-libs/gtk+-3.22.16" => https://pastebin.com/raw/1gNh0ee2
build.log => https://pastebin.com/raw/yG3XWcdF

pewpew · n00b Joined: 05 Feb 2018 Posts: 2

I had the same problem installing fresh xorg-server with nvidia-drivers (pulling gtk2 and gtk3 as a dependency).
Spent few hours looking into it and found that my environment variable was interfering mime type determination.
It was XDG_DATA_DIRS=/usr/share/mesa/xdg
You should set it to something like XDG_DATA_DIRS=/usr/share/mesa/xdg:/usr/local/share/:/usr/share/
That's the only thing that helped me.