Difficulties in compiling some libraries

[Fabien]

Hi,

I tried to use compile-stdlib.sh (modified to remove the graphics stuff, which I don't need), but I am stuck with these:

sndfile.xtm gave me the couldnt find libsndfile, which I corrected to /usr/lib64/libsndfile.so. It worked, and seemed to also have solved for audio_dsp_ext.xtm.

However,

For instruments_ext.xtm, i get the error:

Bad: /home/fabien/src/extempore/libs/aot-cache/xtminstruments.so: undefined symbol: gs107
Error: could not open  dynamic library

Note that when I previously had library errors, the message was "Error: could not open <nameOfLibrary> dynamic library", however in this case there is only a blank space.

For rtmidi.xtm, I made a similar correction (precised the path /usr/lib64/librtmidi.so.2) and it seemd to work, it successfully compiled everything up to midi_callback, but then I get the error :

Compiler Error  could not bind newMidiInDevice
Error AOT-compiling libs/contrib/rtmidi.xtm

How can I correct these? (By the way, I am on a Fedora laptop)

Thanks!

Fabien

[Ben Swift]

Hi Fabien

Firstly, that compile-stdlib.sh script is really old, and probably
doesn't work anymore (perhaps I should delete it - is anyone still using
it?).

The answer to your question is that the compile & build the deps (e.g.
libsndfile) stuff happens in CMakeLists.txt. It's currently not easy to
pick-and-choose, but I'm working on a patch (hopefully by tomorrow) to
at least allow you to build just the audio libs, just the graphics libs,
or both.

I'll let you know asap.

Cheers,
Ben

[Fabien]

Thanks! I look forward to use the sampler again!

[Ben Swift]

I've just pushed up a change to the CMake build file - there are now two
"external" options:

```
option(EXTERNAL_SHLIBS_AUDIO "download & build audio-related external library dependencies" ON)
option(EXTERNAL_SHLIBS_GRAPHICS "download & build graphics-related external library dependencies" ON)
```

Both are on by default, so the default hasn't changed. However, if you
e.g want to build without the graphics stuff, use:

cmake <extempore-dir> -DEXTERNAL_SHLIBS_GRAPHICS=NO && make install

Hope that helps. I'll update the docs shortly.

Cheers
Ben

[Fabien]

Hi Ben,

There now seems to be a problem during the installation:

[ 48%] Linking CXX executable extempore
/usr/bin/ld: cannot open output file extempore: Is a directory
collect2: error: ld returned 1 exit status
CMakeFiles/extempore.dir/build.make:403: recipe for target 'extempore' failed
make[2]: *** [extempore] Error 1
CMakeFiles/Makefile2:1458: recipe for target 'CMakeFiles/extempore.dir/all' failed
make[1]: *** [CMakeFiles/extempore.dir/all] Error 2
Makefile:162: recipe for target 'all' failed
make: *** [all] Error 2

Could it be because I didn't uninstall extempore correctly before trying that?

[Ben Swift]

Hmm, did you blow away your extempore/cmake-build (or whatever) directory? Cmake
doesn't handle changes too gracefully sometimes.

Cheers
Ben

Fabien <contest...@gmail.com> writes:

[Ben Swift]

Yep, I just tried it again (from a clean build directory) with
-DEXTERNAL_SHLIBS_GRAPHICS:OFF and it worked fine.

So it passes the extremely rigorous "Works On My Machine^TM"
certification process.

But let me know how you go - happy to debug further.

Cheers
Ben

[Fabien]

I'm happy to announce that it also passed the test on my side! However, I also built the graphic libraries, since I don't mind having them, I'm just too lazy to hunt the dependencies. It worked for everything except libgl, which still prompts a "missing dynamic library" message, but as far as I'm concerned, I don't need it.

I was a little scared at first, since every time I tried to define dsp with (dsp:set! dsp),  an infinite spawn of "Audio underflow (...)" started to fall, and the audio was slow and glitchy, but a good old reboot solved that. The sampler works! I am very, very happy.

Thanks a lot!

Fabien