Re: Not able to install gnuplot succesfully

On Wednesday, 24 March 2021 18:37:37 PDT Eliezer Richmond wrote:
> I am trying to install gnuplot-5.4.1 in Linux OS using Ubuntu 64 bit 16.04.3
> 
> I have tried to install gnuplot-5.4.1 without success.  I have read the faq
> "How do I compile gnuplot on my system" and the INSTALL file in the
> gnuplot-5.4.1 folder.  
>  
> I downloaded gnuplot-5.4.1.tar.gz and unzipped the file into
> $HOME/gnuplot/gunuplot-5.4.1.

You are mixing up two very different things.
#1 is building and installing gnuplot from source files.
#2 is downloading and installing whatever gnuplot
package your distribution provides.

Pick one or the other.

 
>  
> 
> I then entered the commands
> 
>                ./configure
>                make

Good so far.  Assuming that you were happy with the 
output it shows about what optional components are
being built, you should now have a runnable gnuplot
sitting in the directory where you built it.

>                sudo apt install gnuplot 

But now you go completely wrong.
"apt install" ignores the thing you just built.
It goes out and looks for a package named "gnuplot" on
some Ubuntu web site somewhere.  Then installs it.
Not the one you built.

>                make check

That is checking the copy you built at step 1.

>                make install

That is trying to insall the copy you just checked,
but it will probably fail because you don't have the
right permissions.  Probably you need

                sudo make install

 
> The 'sudo' command ran returning 
>                Reading package lists... Done 
> Building dependency tree        
> Reading state information... Done 
> gnuplot is already the newest version (4.6.6-3ubuntu0.1).

Now you are back in camp #2. It is reporting on installation
of the Ubuntu package rather than the newer gnuplot you just built.
Don't do this.   Do _not_ run "apt".

	hope that helps,

		Ethan 

[snip]
> I hope you can resolve my problem.
> 
> Eliezer Richmond 





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