tce-load -i compiletc cmake wxwidgets-dev ffmpeg4-dev libid3tag-dev libmad-dev

https://www.fosshub.com/Audacity.html?dwl=audacity-minsrc-2.4.2.tar.xz

cd audacity-minsrc-2.4.2

cd build
mkdir build

cmake -LAH -DCMAKE_C_FLAGS_RELEASE="-flto -mtune=generic -Os -pipe -DNDEBUG" -DCMAKE_CXX_FLAGS_RELEASE="-fabi-version=13 -flto -mtune=generic -Os -pipe -DNDEBUG" -DCMAKE_INSTALL_PREFIX=/usr/local -DCMAKE_BUILD_TYPE=Release -DCMAKE_VERBOSE_MAKEFILE=TRUE -Wno-dev -DCMAKE_INSTALL_LIBDIR=lib ../

touch src/private/RevisionIdent.h

[-fno-exceptions fails]

make [11m 42.26s]
sudo make install

/usr/src/audacity-minsrc-2.4.2/src/AboutDialog.cpp:66:10: fatal error: RevisionIdent.h: No such file or directory
   66 | #include <RevisionIdent.h>

$ audacity
Fatal Error: Mismatch between the program and library build versions detected.
The library used 3.0 (wchar_t,compiler with C++ ABI 1013,wx containers,compatible with 2.8),
and your program used 3.0 (wchar_t,compiler with C++ ABI 1014,wx containers,compatible with 2.8).
Aborted