Undefined reference to FLAC and vorbis when running makefile

Linux
1

Hello there,

I’ve decided to start transitioning to using Cmake as I’ve begun daily driving Linux but I’m quite a beginner at it.

I’ve currently just started trying out compiling the example AudioPlugin in JUCE/examples/CMake, but I’ve had almost no luck with it. I’ve managed to get the build tree up and running, but when I run the actual makefile, it starts for a bit and then crashes. Some snippets of the error message include

juce_audio_formats.cpp:(.text._ZN4juce10FlacReaderC2EPNS_11InputStreamE[_ZN4juce10FlacReaderC5EPNS_11InputStreamE]+0xb0): undefined reference to `FLAC__stream_decoder_new’

and

juce_audio_formats.cpp:(.text._ZN4juce9OggWriterC2EPNS_12OutputStreamEdjjiRKNS_15StringPairArrayE[_ZN4juce9OggWriterC5EPNS_12OutputStreamEdjjiRKNS_15StringPairArrayE]+0xd6): undefined reference to `vorbis_info_init’

I think I’m missing some sort of FLAC and OGG modules. I’ve tried installing FLAC through apt, but the error still remains.

As I said, I’m a beginner with CMake, so this is what I have for my top-level CMakeLists.txt. I’ve tried following the API documentation as closely as possible, but I still feel a little confused by it.

cmake_minimum_required(VERSION 3.22)
project(TestCMake VERSION 1.0.0)
find_package(JUCE CONFIG REQUIRED)
add_subdirectory(AudioPlugin)

It’s quite frustrating having to struggle with the build process, so any help at this point would be great appreciated.

Thanks.

2

Okay, let’s find out how this works. At first you make a project folder and enter it:

mkdir myplugin && cd myplugin

clone the juce framework with git.

git clone https://github.com/juce-framework/JUCE.git

Now copy the cmake audio plug-in example to your project folder:

cp JUCE/examples/CMake/AudioPlugin/* .

Edit the CmakeLists.txt and uncomment line 26, so cmake will find juce.

Make a build folder and enter it:

mkdir build && cd build

Now you should be able to build the project:

cmake ..
make

This is only a starting point and should give you a idea of how this works.

3

Thanks for the specific line number. I missed it the first time around cause most of the cmake file was just comments. I’ve gotten this working with the global path as well.

Cheers.