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UNIX/Linux Programming

Welcome to the forum for UNIX and Linux programmers in C++.com! In this forum, users can to talk about any topic related to programming in C++ for UNIX and Lin...

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by L67GS

Return RMS volume of an mp3?

I've been looking for this for 2 days, and found a few command line tools to retrieve the level of an mp3, but nothing I can easily return a value from. I'm sta...

[5 replies] Last: Instead of using a temporary file, you may want to have a look at pop... (by kigar64551)

by colt

No direct rendering when using my own Mesa lib

Hi. I build a very simple opengl program. When I link it against the system provided libGL, I get direct rendering. However, when doing the same with my own, bu...

[1 reply] : Late answer, sorry. You need to look through the FAQ (https://docs.me... (by Duthomhas)

by Jonathan100

make: /usr/bin//-g++: No such file or directory

Hi I got a vs code environment on my host (ubuntu 22.04), and i want to cross-compile an application for imx8mp board. It worked pretty good intil i insta...

[3 replies] Last: Notice here: /usr/bin//-g++ it interpret somehow that the compiler ... (by kigar64551)

by spistol

tzdb: cannot locate zone

Trying to run my an old app... where: std::string time = std::format("{:%H:%M:%OS %z}", std::chrono::zoned_time{"America/New_York", now}); termina...

[11 replies] Last: I just can't find neither "Max" nor "max" there. The mentioned string ... (by spistol)

by highwayman

Calling assembly code from C++

So I've been trying to figure out how I'd write a little function in assembly and then call it from C++, and so far I've been able to call the function and it d...

[5 replies] Last: True.. having the mistake hold me hostage until 6am in the morning is ... (by highwayman)

by spistol

GLIBCXX_3.4.32 not found - Debian 12

Hello! I have installed Debian 12. GCC(c++/g++) upgraded to 13.3.0 from source. But I still having error when I try to run my old programs(were compiled by g++-...

[7 replies] Last: For comparison: RHEL 9 / AlmaLinux 9 does default to GCC 11, just like... (by keskiverto)

by malibor

build systems and code editors\IDE's you use or suggest on Linux?

For the last 2 years I'm using VSCode, since my switch to Linux I continue to use it. But there are many pitfalls with VSCode, primarily VSCode is not good f...

[8 replies] Last: Spack https://spack.io/ -- "scientific package manager" -- is not an a... (by keskiverto)

by malibor

About standard strings in Linux?

I'm new to Linux dev, so far I've been mostly writing Win32 applications where `char` is `ANSI` and `wchar_t` is UNICODE. But I see under Linux the default i...

[8 replies] Last: @kigar64551 I'm very grateful for your sample code and mention of icon... (by malibor)

by colt

Not declared Xvlib function during building

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[10 replies] Last: True. I have lived a simple life, not asking "Do we have X? If yes, th... (by keskiverto)

by colt

Relocation error against undefined symbol

Hi, When building a certain software, I receive this error message during the link stage: /usr/bin/ld: _obj/device/r4300/x86_64/dyna_start.o: relocation R_X...

[5 replies] Last: I think when "compiling" assembly (ASM) code, you cannot and don't nee... (by kigar64551)

by dkaip

Static Linux version of my program

A day before i send my Linux version of my program and it don't runs. If i want to send in many people, and all these people have no idea about functionals, th...

[3 replies] Last: The Flatpak and Snap are some sort of containers, aren't they? Yes. ... (by kigar64551)

by marhuum

Imho this is good, useful or suitable

I found that, imho this little Bash script is good, useful or suitable to compiling and building software https://github.com/abdulbadii/smart-directories-nav...

[2 replies] Last: Yet another set of synonyms to remember. (by kbw)

by JUANDENT

How to install clang 16.0 in ubuntu

Hi, I downloaded clang+llvm-16.0.0-x86_64-linux-gnu-ubuntu and extract all but how do I make clang and other binaries to be callable from any terminal? I ...

[1 reply] : If you just type the program name (e.g. "clang") without a full or r... (by kigar64551)

by JUANDENT

Does g++ support C++ 20 modules?

Hi, I have tried the following command line: Q:\c++\g++> g++ -std=c++20 -fmodules-ts -o main.exe main.cpp .\new_module.ixx Q:/msys64/mingw64/bin/....

[no replies]

by colt

Zsnes's zlib detection code problem.

Hi. I recently tried to build zsnes, however its zlib detection code seems to be seriously broken, as no matter how I pass it to configure, it won't detect it. ...

[4 replies] Last: Ok, I did the modifications suggested and the results were not very ex... (by colt)

by newbieg

Packaging your project

I'm using Makefile (Make) to package my SDL2 project. I'm also using SDL_GetPrefPath to locate and store/install my project's data, plugins, fonts, and other re...

[9 replies] Last: The method you're using to install the files is not the most efficient... (by maxim2511)

by hebrerillo

Detached thread error in helgrind

Hello everyone! I am implementing a detached thread using pthreads. After I run the code under helgrind, it reports a race condition and I think it might be ...

[7 replies] Last: If line 34 executes before line 12, then finished will never be set. ... (by kigar64551)

by t im

Can select use ET mode?

Several blogs tell me that only LT mode can be used in select while both LT and ET mode can be used in epoll. I wonder why ET mode cannot be used in select. ...

[2 replies] Last: Sorry for no references and thanks for your helpful reply. (by t im)

by marhuum

How to merge two partitions by using gdisk

How to merge two partitions, one is system, the lower offset, and the other destroyable content, the adjacent higher offset, by using gdisk (preferably if none ...

[3 replies] Last: Lets try analogous C++ case: char disk ; // The disk is an array of "... (by keskiverto)