Buiding without HID support fails on latest master:
$ scons hid=0 -j16
scons: Reading SConscript files ...
INFO:root:SCons version: unknown
INFO:root:Python version: 3.7.4 (default, Jul 16 2019, 07:12:58) [GCC 9.1.0]
INFO:root:Target Platform: linux
INFO:root:Target Machine: x86_64
INFO:root:Build: debug
INFO:root:Toolchain: gnu
INFO:root:Crosscompile: NO
INFO:root:Qt path: /usr/include/qt
SConscript.env cwd: /data/jan/Projects/mixxx/scons2/lin64_build
Checking whether the C++ compiler works... (cached) yes
Configuring MixxxCore
Checking for pkg-config (at least version 0.15.0)... (cached) yes
Checking for C library X11... (cached) yes
Configuring SoundTouch
Checking for soundtouch (2.0.0 or higher)... (cached) no
Configuring ReplayGain
Configuring Ebur128Mit
Checking for C library ebur128... (cached) no
Checking for C library libebur128... (cached) no
Checking for C header file sys/queue.h... (cached) yes
Configuring PortAudio
Checking for C library portaudio... (cached) yes
Configuring PortMIDI
Checking for C library porttime... (cached) yes
Checking for C library portmidi... (cached) yes
Checking for C header file portmidi.h... (cached) yes
Configuring Qt
Checking for Qt5Core (5.0 or higher)... (cached) yes
Checking for C library Qt5X11Extras... (cached) yes
Configuring TestHeaders
Configuring FidLib
Configuring SndFile
Checking for C library sndfile... (cached) yes
Checking whether SFC_SET_COMPRESSION_LEVEL is declared... (cached) yes
Configuring FLAC
Checking for C header file FLAC/stream_decoder.h... (cached) yes
Checking for C library libFLAC... (cached) yes
Configuring OggVorbis
Checking for C library libvorbisfile... (cached) yes
Checking for C library libvorbis... (cached) yes
Checking for C library libogg... (cached) yes
Checking for C library libvorbisenc... (cached) yes
Configuring OpenGL
Checking for C library GL... (cached) yes
Checking for C library GLU... (cached) yes
Configuring TagLib
Checking for C library tag... (cached) yes
Configuring ProtoBuf
Checking for C library libprotobuf-lite... (cached) yes
Configuring Chromaprint
Checking for C library chromaprint... (cached) yes
Configuring RubberBand
Checking for C library rubberband... (cached) yes
Configuring SecurityFramework
Configuring CoreServices
Configuring IOKit
Configuring QtScriptByteArray
Configuring Reverb
Configuring FpClassify
Configuring PortAudioRingBuffer
Configuring LAME
Checking for C library libmp3lame... (cached) yes
Configuring QueenMaryDsp
Configuring Mad
Checking for C library libmad... (cached) yes
Checking for C library libid3tag... (cached) yes
Configuring CoreAudio
Configuring MediaFoundation
Configuring HSS1394
Configuring HID
Configuring Bulk
Checking for C library libusb-1.0... (cached) yes
Checking for C header file libusb-1.0/libusb.h... (cached) yes
Configuring MacAppStoreException
Configuring VinylControl
Configuring LiveBroadcasting
Checking for C library libshout... (cached) yes
Configuring Opus
Checking for C library opusfile... (cached) yes
Checking for C library opus... (cached) yes
Configuring Profiling
Configuring BuildTime
Configuring Verbose
Configuring Optimize
Configuring FAAD
Configuring WavPack
Configuring ModPlug
Configuring TestSuite
Configuring ColorDiagnostics
Configuring Sanitizers
Configuring LocaleCompare
Checking for C library sqlite3... (cached) yes
Configuring Lilv
Checking for C library lilv-0... (cached) yes
Configuring Battery
Configuring UPower
Configuring QtKeychain
Configuring PerfTools
Configuring AsmLib
Configuring FFMPEG
Features Summary:
================
Mixxx Core Features... Enabled
MAD MP3 Decoder... Enabled
CoreAudio MP3/AAC Decoder... Disabled
Media Foundation AAC Decoder Plugin... Disabled
HSS1394 MIDI device support... Disabled
HID controller support... Disabled
USB Bulk controller support... Enabled
Build for Mac App Store... Disabled
Vinyl Control... Enabled
Live Broadcasting Support... Enabled
Opus (RFC 6716) support... Enabled
profiling (e.g. gprof) support... Disabled
Use __DATE__ and __TIME__... Enabled
Verbose compilation output... Enabled
Optimization and Tuning... portable: sse2 CPU (>= Pentium 4)
FAAD AAC audio file decoder plugin... Disabled
WavPack audio file support plugin... Disabled
Modplug module decoder plugin... Disabled
Mixxx Test Suite... Disabled
Color Diagnostics... Disabled
Clang Sanitizers (asan, ubsan, tsan, etc.)... Disabled
Locale Aware Compare for SQLite... Enabled
Lilv library for LV2 support... Enabled
Battery meter support.... Enabled
Secure credentials storage support for Live Broadcasting profiles... Disabled
Google PerfTools... Disabled
Agner Fog's ASMLIB... Disabled (due to debug build)
FFmpeg/Avconv support... Disabled
================
Building with flags: asan=0 battery=1 buildtime=1 bulk=1 color=0 coreaudio=0 faad=0 ffmpeg=0 hid=0 hss1394=0 lilv=1 localecompare=1 macappstore=0 mad=1 mediafoundation=0 modplug=0 optimize=portable opus=1 perftools=0 perftools_profiler=0 profiling=0 qt_sqlite_plugin=0 qtkeychain=0 shoutcast=1 test=False tsan=0 ubsan=0 verbose=1 vinylcontrol=1 wv=0
Building with CC: gcc
Building with CXX: g++
Building with CCFLAGS: ['-pipe', '-Wall', '-Wextra', '-g', '-fPIC', '-O3', '-ffast-math', '-funroll-loops', '-fomit-frame-pointer', '-mtune=generic', '-pthread']
Building with CPPDEFINES: -Dx86_64 -DMIXXX_BUILD_DEBUG -D__LINUX__ -D__UNIX__ -DSETTINGS_PATH=\".mixxx/\" -DSETTINGS_FILE=\"mixxx.cfg\" -DUNIX_SHARE_PATH=\"/usr/local/share/mixxx\" -DUNIX_LIB_PATH=\"/usr/local/lib/mixxx\" -DQT_TABLET_SUPPORT -DQT_SHARED -DQT_CORE_LIB -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_OPENGL_LIB -DQT_SCRIPT_LIB -DQT_SQL_LIB -DQT_SVG_LIB -DQT_WIDGETS_LIB -DQT_XML_LIB -DQT_CONCURRENT_LIB -DQT_NETWORK_LIB -DQT_OPENGL_LIB -DQT_SCRIPT_LIB -DQT_SCRIPTTOOLS_LIB -DQT_SQL_LIB -DQT_SVG_LIB -DQT_TESTLIB_LIB -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_XML_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -D__SNDFILE__ -DSFC_SUPPORTS_SET_COMPRESSION_LEVEL -Dkiss_fft_scalar=double -DUSE_PTHREADS -D__MAD__ -D__BULK__ -D__VINYLCONTROL__ -D__BROADCAST__ -D__OPUS__ -D__SQLITE3__ -D__LILV__ -D__BATTERY__
Building with CXXFLAGS: -Wno-deprecated-copy -std=c++14
Building with LINKFLAGS: ['-Wl,-rpath,/usr/lib', '-L/usr/lib', '-pthread']
Building with LIBS: X11 portaudio asound m pthread porttime portmidi Qt5X11Extras Qt5Concurrent Qt5Network Qt5OpenGL Qt5Script Qt5ScriptTools Qt5Sql Qt5Svg Qt5Test Qt5Widgets Qt5Gui Qt5Xml Qt5DBus Qt5Core sndfile libFLAC libvorbisfile libvorbis libogg libvorbisenc GL GLU tag libprotobuf-lite chromaprint rubberband libmp3lame libmad libid3tag usb-1.0 libusb-1.0 libshout opusfile opus sqlite3 lilv-0 upower-glib gobject-2.0 glib-2.0 soundtouch
Building with PATH: /home/jan/.gem/ruby/2.6.0/bin:/home/jan/bin:/home/jan/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/bin:/opt/android-sdk/platform-tools:/opt/android-sdk/tools:/opt/android-sdk/tools/bin:/var/lib/flatpak/exports/bin:/usr/lib/jvm/default/bin:/usr/bin/site_perl:/usr/bin/vendor_perl:/usr/bin/core_perl:/home/jan/.fzf/bin
================
WE ARE IN: /data/jan/Projects/mixxx/scons2/lin64_build
Building master - rev. 6913
Install root: /usr/local
scons: done reading SConscript files.
scons: Building targets ...
scons: *** [lin64_build/controllers/hid/hidcontrollerpresetfilehandler.o] Source `controllers/hid/hidcontrollerpresetfilehandler.cpp' not found, needed by target `lin64_build/controllers/hid/hidcontrollerpresetfilehandler.o'.
scons: building terminated because of errors.
A fix is here: https:/