As those in turn steal^Wborrow from Debian it should be libgtk-3-dev.
EXCELLENT !
I succeded with the ubuntu files .
Thanks a lot all
Ah! I have a last question: how to bring up the RT icon instead of the generic file icon?
(Linux MINT)
Tks
Wait, do you mean you used Ubuntu packages on your Mint installation? Or just the package name to install the native package?
HI houz,
I used that :
Ubuntu 16.04 LTS and 15.10
Use the gtk3 branch.
sudo apt-get update
sudo apt-get install build-essential cmake curl git libbz2-dev libcanberra-gtk3-dev libexiv2-dev libexpat-dev libfftw3-dev libglibmm-2.4-dev libgtk-3-dev libgtkmm-3.0-dev libiptcdata0-dev libjpeg8-dev liblcms2-dev libpng12-dev libsigc+±2.0-dev libtiff5-dev zlib1g-dev
I think you can add the “dhor/myway” PPA to Linux Mint and get regular updates.
Thanks, I’ve installed
Mixing distributions is almost never a good idea and prone to break things horribly in the long run. I would be surprised if Mint didn’t ship that package by default already.
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You are right but I think Mint is directly derived from ubuntu and I read somewhere that the packages were compatible.
But I’m starting with Linux; I tried it there a few years ago but had been put off by the complexity when I wanted to go out of a system of pakages.
Now Microsoft’s arrogance gives me strong motivation to migrate from Win to Linux…
… and after a while back to Win, because you screwed up everthing by happily mixing package versions!
Nothing new and seen very often 
I think I’ve seen this as well, but the warning from everyone are quite valid. Though it may seem to work for the moment, it maybe worth checking somewhere (MINT support forums?) to make sure that what you’re doing is sane. At least checking the docs real quick couldn’t hurt.
Keep cool Christian !
In any case, It is not your advice which will allow me to improve my knowledge of Linux…
This is true: I am running Mint 17 and happily installing packages from dhor/myway without issues. The base system is the same of a standard Ubuntu distribution.
Indeed Mint over-rides some packages from Ubuntu. They also pin some packages from Debian in there when necessary. As a long time Debian user, I would not recommend grabbing deb files from out side the distro and installing them, that will eventually lead to sadness.
PPAs indeed work well on Mint, this is much better than grabbing packages.
I use the LTS version of Xubuntu. In the past, when I tried compiling Rawtherapee from source, I ran into problems with dependencies. The required libraries were too new for the LTS version. This required me to grab packages from newer non-LTS versions of Xubuntu. So unless this practice has changed, I would essentially be grabbing packages outside of my versions repository. Maybe less risk than Linux Mint, but still a risk of breaking things.
The “dhor/myway” PPA is much appreciated.
All right ! I had better to come back to the old version ; the new one works at 95% but crash sometime when I use the saturation.
Not reporting the bug is the best way of not getting it fixed.
http://rawpedia.rawtherapee.com/How_to_write_useful_bug_reports
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I didn’t want to report a bug because I’m not sur that the problem come from RT.
May be it come from a bad installation ?
I can’t tell without any info 
Ah! too late, I have uninstalled it…
The problem was several time when I have adjusted the contrast, and the saturation immediately after, the screen of RT has quickly disappeared and gave me back to the desktop screen.
I can try to compile it again if you want ?