Temporary header file '/tmp/hBZPtRO_rR/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/ws2811/clk.h"
  #include "/usr/include/ws2811/dma.h"
  #include "/usr/include/ws2811/gpio.h"
  #include "/usr/include/ws2811/mailbox.h"
  #include "/usr/include/ws2811/pcm.h"
  #include "/usr/include/ws2811/pwm.h"
  #include "/usr/include/ws2811/rpihw.h"
  #include "/usr/include/ws2811/ws2811.h"

  // add classes
  ws2811_channel_t* tmp_add_class_0;
  ws2811_t* tmp_add_class_1;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/hBZPtRO_rR/dump1.h"