MinGW Compiling code using Opus using libraries

[Benjamin-Loison]

Hello,

I am looking at using libraries but I have already given a few shots... Let say I want to compile this standalone Opus use file: https://pastebin.com/L5P2cyZS

I have libraries available here? https://archive.mozilla.org/pub/opus/win32/opusfile-v0.9-win32.zip

If I do mingw32-g++ main.cpp -L "folderWhereIUnarchiveThePreviousFile" I always get:

undefined reference to `opus_get_version_string'

and others... (I tried this several times in the past weeks...)

Any ideas please?

Note that main.cpp is the code from the pastebin. I know that g++ don't get the good libraries but I don't know how to solve it... Am I trying to link not the good libs?

It seems that there isn't any available Windows artifact here: https://github.com/xiph/opus-tools/issues/43

Could we have precise instructions for Windows using MinGW and not Microsoft Visual please? (cf README.md 0) Set up a development environment)

[vtorri]

add

-lopus

at the end, that is

mingw32-g++ main.cpp -L "folderWhereIUnarchiveThePreviousFile" -lopus

[vtorri]

Hello

When you develop with MinGW, I would recommend using MSYS2 (UNIX-like terminal) and mingw-w64 toolchain. It is the easiest way.

go to https://www.msys2.org/ and follow steps from 1 to 8.

Then, in the MinGW 64 bits terminal, install opus :

pacman -Syu mingw-w64-x86_64-opus

then go to your project directory and :

g++ -Wall -Wextra -o project main.cpp pkg-config --cflags --libs opus

hth

Vincent Torri

On Sun, Oct 31, 2021 at 1:10 AM Benjamin Loison @.***> wrote:

After a year not having added -lopus at the end at that time looked such a common mistake however after working again on my problem when adding -lopus I have "cannot find -lopus" error.

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[Benjamin-Loison]

Hello

Thank you for your detailed answer. However as I try to repeat I have to be able to compile the pastebin I sent or opus tools on MinGW because I want to use opus in a huge project (my video game) which uses MinGW so using MSYS2 or cross-compiling etc doesn't seem appropriate.

And the nearest approach using MinGW given by opus is about using msbuild 😅

[vtorri]

well, i use msys(2) + mingw(-w64) for around 15 years (natively or cross-compilation). The only thing you will need is the DLL of opus and its dependencies, and copy them in the same directory of your binary.

I use msys2 + mingw-w64 to compile a big toolkit (and I create an NSIS installer for it), vlc is also using msys2+mingw-w64, like a lot of other projects.

Here is the list of projects that I compile for the toolkit above (opus is int it) :

https://github.com/vtorri/ewpi/blob/master/README.md