Compilation problem

[Alexus-3000]

On several different systems, including Raspberry:

sudo pip3 install git+https://github.com/SamplerBox/rtmidi-python.git

Collecting git+https://github.com/SamplerBox/rtmidi-python.git
Cloning https://github.com/SamplerBox/rtmidi-python.git to /tmp/pip-req-build-xfbk592i
Running command git clone --filter=blob:none --quiet https://github.com/SamplerBox/rtmidi-python.git /tmp/pip-req-build-xfbk592i
Resolved https://github.com/SamplerBox/rtmidi-python.git to commit f7b95708eb6a9fd2277518930aab41a43287fd91
Preparing metadata (setup.py) ... done
Building wheels for collected packages: rtmidi-python
Building wheel for rtmidi-python (setup.py) ... error
error: subprocess-exited-with-error

× python setup.py bdist_wheel did not run successfully.
│ exit code: 1
╰─> [17 lines of output]
running bdist_wheel
running build
running build_ext
Compiling rtmidi_python.pyx because it changed.
[1/1] Cythonizing rtmidi_python.pyx
/usr/local/lib/python3.10/dist-packages/Cython/Compiler/Main.py:381: FutureWarning: Cython directive 'language_level' not set, using '3str' for now (Py3). This has changed from earlier releases! File: /tmp/pip-req-build-xfbk592i/rtmidi_python.pyx
tree = Parsing.p_module(s, pxd, full_module_name)
building 'rtmidi_python' extension
creating build
creating build/temp.linux-x86_64-3.10
creating build/temp.linux-x86_64-3.10/RtMidi
x86_64-linux-gnu-gcc -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O2 -Wall -g -fstack-protector-strong -Wformat -Werror=format-security -g -fwrapv -O2 -g -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -D__LINUX_ALSA__ -I/usr/include/python3.10 -c RtMidi/RtMidi.cpp -o build/temp.linux-x86_64-3.10/RtMidi/RtMidi.o
RtMidi/RtMidi.cpp:1048:10: fatal error: alsa/asoundlib.h: Нет такого файла или каталога
1048 | #include <alsa/asoundlib.h>
| ^~~~~~~~~~~~~~~~~~
compilation terminated.
error: command '/usr/bin/x86_64-linux-gnu-gcc' failed with exit code 1
[end of output]

note: This error originates from a subprocess, and is likely not a problem with pip.
ERROR: Failed building wheel for rtmidi-python
Running setup.py clean for rtmidi-python
Failed to build rtmidi-python
Installing collected packages: rtmidi-python
Running setup.py install for rtmidi-python ... error
error: subprocess-exited-with-error

× Running setup.py install for rtmidi-python did not run successfully.
│ exit code: 1
╰─> [15 lines of output]
running install
/usr/lib/python3/dist-packages/setuptools/command/install.py:34: SetuptoolsDeprecationWarning: setup.py install is deprecated. Use build and pip and other standards-based tools.
warnings.warn(
running build
running build_ext
building 'rtmidi_python' extension
creating build
creating build/temp.linux-x86_64-3.10
creating build/temp.linux-x86_64-3.10/RtMidi
x86_64-linux-gnu-gcc -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O2 -Wall -g -fstack-protector-strong -Wformat -Werror=format-security -g -fwrapv -O2 -g -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -D__LINUX_ALSA__ -I/usr/include/python3.10 -c RtMidi/RtMidi.cpp -o build/temp.linux-x86_64-3.10/RtMidi/RtMidi.o
RtMidi/RtMidi.cpp:1048:10: fatal error: alsa/asoundlib.h: Нет такого файла или каталога
1048 | #include <alsa/asoundlib.h>
| ^~~~~~~~~~~~~~~~~~
compilation terminated.
error: command '/usr/bin/x86_64-linux-gnu-gcc' failed with exit code 1
[end of output]

note: This error originates from a subprocess, and is likely not a problem with pip.
error: legacy-install-failure

× Encountered error while trying to install package.
╰─> rtmidi-python

note: This is an issue with the package mentioned above, not pip.
hint: See above for output from the failure.

[dosas]

If 'I' translate this line RtMidi/RtMidi.cpp:1048:10: fatal error: alsa/asoundlib.h: Нет такого файла или каталога correctly it says:

RtMidi/RtMidi.cpp:1048:10: fatal error: alsa/asoundlib.h: No such file or directory

This means that the dependecy libasound2-dev is missing. Installing it should fix your problem?

There were two PRs [1], [2] in the past trying to add this dependency amongst other changes. I have no idea why it became a dependency now.