[Solved] Zorin. Updating packages - error on ide rebuild.
lazarus / 1-Linux

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iru · 2025-08-16 05:22

Environment: lenovo T460s, mem 8G, hd 256G.
Zorin: 17.3.core.
Lazarus 4.2.

Problem:
Lazarus installs OK, add a couple of unit1 form, compiles and executes
OK.

Problem occurs when using the On Line package manager.
Select BGRA build buttons (have read the directions on GitHub).

Click on 'Rebuild the IDE'. Rebuild then fails with:

Warning: linker: /usr/bin/ld: cannot find -lGL: No such file or
directory
make[2]: *** [Makefile:4463: lazarus] Error 1
make[1]: *** [Makefile:4909: ide] Error 2
*** [Makefile(3168,0) Error: linker: ide] Error 2

No idea what/where '-IGL' is.
Which Makefile??? Checked /usr/share/lazarus/4.2.0 the Makefile there
is not large enough for errors 4463 and 4909.

Any help/insparation appreciated.

Ian.

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bobby100 · 2025-08-16 05:29

You are missing OpenGL dev package. Install it from your OS' package
manager.
-lGL means something like libGL, and for the linker you need the DEV
package for libGL.

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cdbc · 2025-08-16 05:31

Hi
Somehow, the linker cannot find the 'OpenGL' libraries on your
system...?!?
"-lGL" means /link-in GL-library/
Regards Benny

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iru · 2025-08-17 04:59

Gentlemen,
Thank you both for your instructions - OpenGl is installed.....

However the rebuild process now fails with

Warning: linker: /usr/bin/ld: cannot find -lXtst: No such file or
directory.

It looks like there is another missing library. 'Xtst'????

Can anyone help with a library name???

Ian

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bytebites · 2025-08-17 05:09

libXtst

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Thausand · 2025-08-17 09:50

@iru:
no good with play guess game, read instruction better: (for bgra)
https://wiki.freepascal.org/BGRA_Installation_on_Linux

Every package can have own dependency so better read instruction that
tell

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iru · 2025-08-17 10:50

Gentlefolk,
Thank you for the responses.

I went looking for a library 'libXtst' on the system - not there.

There is 'libXtst6' which I presume is a later version of
'libXtst'....

Searched through /usr/share/lazarus/4.2.0 and /home/iru/.lazarus
looking for anything that performs a load of 'libXtst' with a view to
modifying it to 'libXtst6'.

No luck so far...... Ian.

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iru · 2025-08-17 11:25

Gentlefolk,

Following the installation process described by Handoko with
'Installing Lazarus 1.8.4 on Ubuntu 18.04' reply #6.

In /home/iru/.lazarus/bin I find multiple link.res files all
differentiated by a number link<number>.res,

Selected the most recent file and way down at line 2421 I find

INPUT(
-lpthread
-ldl
-lgdk-x11-2.0
-lgtk-x11-2.0
-lX11
-lgdk_pixbuf-2.0
-lgobject-2.0
-lglib-2.0
-lgthread-2.0
-lgmodule-2.0
-lpango-1.0
-lcairo
-latk-1.0
-lutil
-lGL
-lm
-lpangocairo-1.0
-lXtst
-lrt
)

So there is 'GL' and 'Xtst'. So what builds the link<number>.res
file?????

Ian.

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Thausand · 2025-08-17 11:40

Quote from: iru on August 17, 2025, 01:25:56 pmIn
/home/iru/.lazarus/bin I find multiple link.res files all
differentiated by a number link<number>.res,
...
I not know about Zorin but have knowledge for Debian. Debian make use
XXX-dev package for file-link to version number in use. Please consult
Zorin manual or maybe someone else use Zorin and know how versioning
libraries make work for Zorin.

PS: I read zorin = ubuntu and know ubuntu = debian so should work same
and not worry about version. Make install dev package for library to
fix version issue. Wiki write same.

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iru · 2025-08-18 07:14

Gentlefolk,

I read a lot of things and:
Came to the conclusion that libXtst6 was not what was needed. Removed
it.
Went looking for libXtst. Found nothing.
Read some more and came to the conclusion that libxtst-dev was
required.

Installed it.

I and now rebuild the Lazarus IDE after importing packages via the On-
Line-Package!!!!

Thanks for the help/interest.

Ian.