Temporary header file '/tmp/cz0SvR4p0M/dump1.h' with the following content will be compiled to create GCC translation unit dump:

  // add defines
  #define __STDC_VERSION__ 201710L
#define _GXX_NULLPTR_T
#define CLUTTER_ENABLE_COMPOSITOR_API 1
#define _REGEX_NELTS(n)
#define _Atomic
#define PACKED
#define getaddrinfo_a(a,b,c,d)

  // add includes
  #include "/usr/include/SndObj/ADSR.h"
  #include "/usr/include/SndObj/AdSyn.h"
  #include "/usr/include/SndObj/Allpass.h"
  #include "/usr/include/SndObj/Ap.h"
  #include "/usr/include/SndObj/AudioDefs.h"
  #include "/usr/include/SndObj/Balance.h"
  #include "/usr/include/SndObj/Bend.h"
  #include "/usr/include/SndObj/ButtBP.h"
  #include "/usr/include/SndObj/ButtBR.h"
  #include "/usr/include/SndObj/ButtHP.h"
  #include "/usr/include/SndObj/ButtLP.h"
  #include "/usr/include/SndObj/Buzz.h"
  #include "/usr/include/SndObj/Comb.h"
  #include "/usr/include/SndObj/Convol.h"
  #include "/usr/include/SndObj/DelayLine.h"
  #include "/usr/include/SndObj/EnvTable.h"
  #include "/usr/include/SndObj/FFT.h"
  #include "/usr/include/SndObj/FFT_alt.h"
  #include "/usr/include/SndObj/FastOsc.h"
  #include "/usr/include/SndObj/Filter.h"
  #include "/usr/include/SndObj/Fir.h"
  #include "/usr/include/SndObj/Gain.h"
  #include "/usr/include/SndObj/HammingTable.h"
  #include "/usr/include/SndObj/HarmTable.h"
  #include "/usr/include/SndObj/HiPass.h"
  #include "/usr/include/SndObj/Hilb.h"
  #include "/usr/include/SndObj/IADSR.h"
  #include "/usr/include/SndObj/IFAdd.h"
  #include "/usr/include/SndObj/IFFT.h"
  #include "/usr/include/SndObj/IFFT_alt.h"
  #include "/usr/include/SndObj/IFGram.h"
  #include "/usr/include/SndObj/ImpulseTable.h"
  #include "/usr/include/SndObj/Interp.h"
  #include "/usr/include/SndObj/LoPassTable.h"
  #include "/usr/include/SndObj/Lookup.h"
  #include "/usr/include/SndObj/Lookupi.h"
  #include "/usr/include/SndObj/Loop.h"
  #include "/usr/include/SndObj/LowPass.h"
  #include "/usr/include/SndObj/Lp.h"
  #include "/usr/include/SndObj/MidiIn.h"
  #include "/usr/include/SndObj/MidiMap.h"
  #include "/usr/include/SndObj/Mix.h"
  #include "/usr/include/SndObj/NoteTable.h"
  #include "/usr/include/SndObj/Osc.h"
  #include "/usr/include/SndObj/Osci.h"
  #include "/usr/include/SndObj/Oscil.h"
  #include "/usr/include/SndObj/Oscili.h"
  #include "/usr/include/SndObj/Oscilt.h"
  #include "/usr/include/SndObj/PVA.h"
  #include "/usr/include/SndObj/PVBlur.h"
  #include "/usr/include/SndObj/PVEnvTable.h"
  #include "/usr/include/SndObj/PVFilter.h"
  #include "/usr/include/SndObj/PVMask.h"
  #include "/usr/include/SndObj/PVMix.h"
  #include "/usr/include/SndObj/PVMorph.h"
  #include "/usr/include/SndObj/PVRead.h"
  #include "/usr/include/SndObj/PVS.h"
  #include "/usr/include/SndObj/PVTable.h"
  #include "/usr/include/SndObj/PVTransp.h"
  #include "/usr/include/SndObj/Pan.h"
  #include "/usr/include/SndObj/PhOscili.h"
  #include "/usr/include/SndObj/Phase.h"
  #include "/usr/include/SndObj/Pitch.h"
  #include "/usr/include/SndObj/PlnTable.h"
  #include "/usr/include/SndObj/Pluck.h"
  #include "/usr/include/SndObj/Ptrack.h"
  #include "/usr/include/SndObj/Rand.h"
  #include "/usr/include/SndObj/Randh.h"
  #include "/usr/include/SndObj/Randi.h"
  #include "/usr/include/SndObj/ReSyn.h"
  #include "/usr/include/SndObj/Reson.h"
  #include "/usr/include/SndObj/Ring.h"
  #include "/usr/include/SndObj/SinAnal.h"
  #include "/usr/include/SndObj/SinSyn.h"
  #include "/usr/include/SndObj/SndASIO.h"
  #include "/usr/include/SndObj/SndAiff.h"
  #include "/usr/include/SndObj/SndBuffer.h"
  #include "/usr/include/SndObj/SndCoreAudio.h"
  #include "/usr/include/SndObj/SndFIO.h"
  #include "/usr/include/SndObj/SndIO.h"
  #include "/usr/include/SndObj/SndIn.h"
  #include "/usr/include/SndObj/SndJackIO.h"
  #include "/usr/include/SndObj/SndMidi.h"
  #include "/usr/include/SndObj/SndMidiIn.h"
  #include "/usr/include/SndObj/SndObj.h"
  #include "/usr/include/SndObj/SndPVOCEX.h"
  #include "/usr/include/SndObj/SndRTIO.h"
  #include "/usr/include/SndObj/SndRTThread.h"
  #include "/usr/include/SndObj/SndRead.h"
  #include "/usr/include/SndObj/SndSinIO.h"
  #include "/usr/include/SndObj/SndTable.h"
  #include "/usr/include/SndObj/SndThread.h"
  #include "/usr/include/SndObj/SndWave.h"
  #include "/usr/include/SndObj/SndWaveX.h"
  #include "/usr/include/SndObj/SpecCart.h"
  #include "/usr/include/SndObj/SpecCombine.h"
  #include "/usr/include/SndObj/SpecEnvTable.h"
  #include "/usr/include/SndObj/SpecIn.h"
  #include "/usr/include/SndObj/SpecInterp.h"
  #include "/usr/include/SndObj/SpecMult.h"
  #include "/usr/include/SndObj/SpecPolar.h"
  #include "/usr/include/SndObj/SpecSplit.h"
  #include "/usr/include/SndObj/SpecThresh.h"
  #include "/usr/include/SndObj/SpecVoc.h"
  #include "/usr/include/SndObj/StringFlt.h"
  #include "/usr/include/SndObj/SyncGrain.h"
  #include "/usr/include/SndObj/Table.h"
  #include "/usr/include/SndObj/Tap.h"
  #include "/usr/include/SndObj/Tapi.h"
  #include "/usr/include/SndObj/TpTz.h"
  #include "/usr/include/SndObj/TrisegTable.h"
  #include "/usr/include/SndObj/Unit.h"
  #include "/usr/include/SndObj/UsrDefTable.h"
  #include "/usr/include/SndObj/UsrHarmTable.h"
  #include "/usr/include/SndObj/VDelay.h"

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/cz0SvR4p0M/dump1.h"  -I/usr/include/linux/usb

In file included from /usr/include/SndObj/PVA.h:32,
                 from /usr/include/SndObj/SinAnal.h:27,
                 from /usr/include/SndObj/SinSyn.h:27,
                 from /usr/include/SndObj/ReSyn.h:26,
                 from /usr/include/SndObj/AdSyn.h:26,
                 from /tmp/cz0SvR4p0M/dump1.h:13:
/usr/include/SndObj/FFT.h:34:10: fatal error: rfftw/rfftw.h: No such file or directory
   34 | #include <rfftw/rfftw.h>
      |          ^~~~~~~~~~~~~~~
compilation terminated.