On 06/05/2026 16:24, Danny Gowin via fpc-pascal wrote:
I need to report a bug in Lazarus running on Fedora.
Work items · FPC Source · GitLab
<https://gitlab.com/freepascal.org/fpc/source/-/work_items?sort=created_date&state=opened&first_page_size=20>
Fedora 44, Lazarus version 4.6, FPC Version 3.2.2, Project: Simple
Program.
*Program mytestprog01;*
*
*
*Uses crt;*
*
*
*Begin*
* Writeln('Hello World');*
* Readln;*
*end.*
When Compile Run is initiated.
1.
Run With Debugger.
_A terminal Window is NOT initiated._
The program can be Stopped. But the IDE returns no Error.
The compiled program executes correctly when run manually from a terminal.
Question: Lazarus on Fedora, is the IDE making a call to an obsolete
terminal program like xterm?
This feature works correctly on the Windows 11, Lazarus version 4.6,
FPC Version 3.2.2, Project: Simple Program.
Actually a Lazarus question, not an FPC question.
Currently on Linux, all terminal IO is redirected to
Menu: view > debug windows > console
But, that is a very simple text console without terminal functionality.
You will see text, and be able to enter text... nothing else.
On Windows the OS opens a new terminal window for the debugged app. On
Linux the caller (here IDE) would need to start a terminal (xterm,
gnome-term, ...) and run the app inside => that is not supported currently.
There are a few "workarounds"
1) Tools >Options > debugger backend : there is a setting about PTY
If you have a terminal open, and know its pty, then you can enter this
pty in the settings, and all in/output is redirected.
2) (not tested myself)
Run the app in gdbserver inside a terminal, and use the gdb server
debugger to connect to it.
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