CMake Problem - issue compiling plugins

Development Server plugins
1

I’m trying to ease myself into writing a few basic plugins, using the cookiecutter repo I downloaded the simplegain plugin, for some reason the command from the tutorial cmake -B "build" -S . -DSC_PATH="/home/jordan/supercollider/" \ -DCMAKE_INSTALL_PREFIX="/home/jordan/.local/share/SuperCollider/Extensions" gives me this error:

  Ignoring extra path from command line:

   " -DCMAKE_INSTALL_PREFIX=/home/jordan/.local/share/SuperCollider/Extensions"


-- Found SuperCollider: /home/jordan/supercollider
-- Building plugins for SuperCollider version: 3.14.0-dev
-- The C compiler identification is GNU 13.2.1
-- The CXX compiler identification is GNU 13.2.1
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
CMake Warning at CMakeLists.txt:42 (message):
  No install prefix provided, defaulting to $BUILD_DIR/install


-- Install directory set to: /home/jordan/simplegain/build/install
-- Added server plugin target SimpleGain_scsynth
-- Added server plugin target SimpleGain_supernova
-- Generating plugin targets done
-- Configuring done (1.4s)
-- Generating done (0.0s)
-- Build files have been written to: /home/jordan/simplegain/build

And then installing also doesn’t work. I’m not quite sure why the “extra path from command line” is being ignored. One idea I had is that it’s because I’m on arch and installed sc with pacman rather than compiling from source, I do however have a copy of the source code as seen in the CMake command.

Any thoughts what’s going on here or what I’m doing wrong?

Cheers!
Jordan

2

I’m not too sure about the install directory, it looks correct to me, but you should just be able to manually copy the files and directories from /home/jordan/simplegain/build/install to wherever you like.

Does building work? That error would be very useful!

That should be fine.

3

Theoretically I can build and install:

[jordan@arch simplegain]$ cmake --build build --config "Release" --target install
[ 25%] Building CXX object CMakeFiles/SimpleGain_scsynth.dir/plugins/SimpleGain/SimpleGain.cpp.o
[ 50%] Linking CXX shared module SimpleGain_scsynth.so
[ 50%] Built target SimpleGain_scsynth
[ 75%] Building CXX object CMakeFiles/SimpleGain_supernova.dir/plugins/SimpleGain/SimpleGain.cpp.o
[100%] Linking CXX shared module SimpleGain_supernova.so
[100%] Built target SimpleGain_supernova
Install the project...
-- Install configuration: ""
-- Installing: /home/jordan/simplegain/build/install/Simple Gain/SimpleGain_scsynth.so
-- Installing: /home/jordan/simplegain/build/install/Simple Gain/SimpleGain_supernova.so
-- Installing: /home/jordan/simplegain/build/install/Simple Gain/Classes/SimpleGain.sc
-- Installing: /home/jordan/simplegain/build/install/Simple Gain/HelpSource/Classes/SimpleGain.schelp

However, it doesn’t seem to actually work, I certainly don’t see any proof of its existence when I try and use it as a UGen even after recompiling.

4

Have you added /home/jordan/simplegain/build/install/(or maybe it would be /home/jordan/simplegain/build/install/Simple Gain/) to the interpreters include path?
In the IDE go to preferences → edit → include. Alternatively you could copy and past the Simple Gain folder to /home/jordan/.local/share/SuperCollider/Extensions, assuming that is also in your include path.

You will have to restart the IDE after adding this line, for some reason recompiling doesn’t update it.

1 Like
5

This has worked! Thanks. Any idea how to do this from the cli, or in scnvim? I don’t mind opening the IDE but in my perfect world I’d be able do this a bit less manually.