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Missing wiringpi lib [message #1851616]

Mon, 11 April 2022 09:49

Kurt Struevy

Messages: 45
Registered: May 2016

Member

Hello,
first of all, I'm very satisfied with eclipse 2022-03. Thanks to the designers!
I have only one little problem. To make an application for a raspberry I need wiringpi to control GPIOs.
There is no such library on my host. I use the Prebuilt Windows Toolchain for Raspberry Pi on https://gnutoolchains.com/raspberry/.
But they do not provide this library.
Is there any way to install/create this lib?
What I have are all the necessary header and c files.
Does it help if I build the library using eclipse? How can I create a library? I can't ana instruction how th make it.
Could somebody help me.
Kurt

[Updated on: Mon, 11 April 2022 09:50]

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Re: Missing wiringpi lib [message #1851812 is a reply to message #1851616]

Mon, 18 April 2022 12:16

Tauno Voipio

Messages: 742
Registered: August 2014

Senior Member

The wiringPi libraries and headers are included in Raspbian or Raspi OS releases.

The libraries are shared (dynamic) libraries, and they are needed on both the target computer and the development computer for proper linking.

Please have a look at attached PDF where I have made notes on Raspbian cross-development. The PDF is a expanded version of a file I posted earlier.

Attachment: Raspi-cross.pdf
(Size: 97.26KB, Downloaded 111 times)

--

Tauno Voipio

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Re: Missing wiringpi lib [message #1851842 is a reply to message #1851616]

Tue, 19 April 2022 15:26

tepalia02 02

Messages: 19
Registered: April 2022

Junior Member

You can Use External Libraries in Eclipse for the Raspberry Pi. In order to utilize a library, you will need to include one or more header files in your source code. Then open up the Project Properties (Project>Properties) and add the path to the header files for the relevant compiler

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Re: Missing wiringpi lib [message #1851856 is a reply to message #1851842]

Wed, 20 April 2022 10:14

Kurt Struevy

Messages: 45
Registered: May 2016

Member

thanks a lot for your answers
@ Tauno Voipio thanksfor yourvery good description.
It sounds quiet easy but I run Eclipse on a windows 10 machine and the toolcahin from here : https://gnutoolchains.com/raspberry64/ and it is quiet difficult to find out where the include- and lib-files have to be located.
There are also some links found on the rapberry:

lrwxrwxrwx  1 root root    22 Apr 18 09:24 libwiringPiDev.so -> libwiringPiDev.so.2.70
-rwxr-xr-x  1 root root 27844 Apr 18 09:24 libwiringPiDev.so.2.70
lrwxrwxrwx  1 root root    19 Apr 18 09:24 libwiringPi.so -> libwiringPi.so.2.70
-rwxr-xr-x  1 root root 69860 Apr 18 09:24 libwiringPi.so.2.70

and I do not know how to handle it.
This toolchain doesn't include wiringpi at all:
The includefile works good, birt the lib file cannot be found by the linker.
@ tepalia02 02,
it is not clear how to make this.
I will try it.

[Updated on: Wed, 20 April 2022 14:19]

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Re: Missing wiringpi lib [message #1851871 is a reply to message #1851856]

Wed, 20 April 2022 16:33

Tauno Voipio

Messages: 742
Registered: August 2014

Senior Member

The directory where those links were found is the equivalent to Raspbian /usr/lib/ in my examples.

Next, you should find the place for the header files. It could be up one step from the above directory and include/ there.

--

Tauno Voipio

[Updated on: Wed, 20 April 2022 16:35]

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Re: Missing wiringpi lib [message #1852091 is a reply to message #1851871]

Thu, 28 April 2022 16:40

Kurt Struevy

Messages: 45
Registered: May 2016

Member

Hello to all,
i got a solution for this problem.
The bulleye raspian does not provide wiringpi any more.
You have to use an older version.
Thanks to all which answered in this post!

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