Temporary header file '/tmp/6qY_z4JKNO/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/loadpng.h"

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/6qY_z4JKNO/dump1.h"

In file included from /tmp/6qY_z4JKNO/dump1.h:12:
/usr/include/loadpng.h:58:11: error: ‘BITMAP’ does not name a type
   58 | APNG_FUNC(BITMAP *, load_png, (AL_CONST char *filename, RGB *pal));
      |           ^~~~~~
/usr/include/loadpng.h:25:48: note: in definition of macro ‘APNG_FUNC’
   25 |     #define APNG_FUNC(type, name, args) extern type name args
      |                                                ^~~~
/usr/include/loadpng.h:61:11: error: ‘BITMAP’ does not name a type
   61 | APNG_FUNC(BITMAP *, load_png_pf, (PACKFILE *fp, RGB *pal));
      |           ^~~~~~
/usr/include/loadpng.h:25:48: note: in definition of macro ‘APNG_FUNC’
   25 |     #define APNG_FUNC(type, name, args) extern type name args
      |                                                ^~~~
/usr/include/loadpng.h:64:11: error: ‘BITMAP’ does not name a type
   64 | APNG_FUNC(BITMAP *, load_memory_png, (AL_CONST void *buffer, int buffer_size, RGB *pal));
      |           ^~~~~~
/usr/include/loadpng.h:25:48: note: in definition of macro ‘APNG_FUNC’
   25 |     #define APNG_FUNC(type, name, args) extern type name args
      |                                                ^~~~
/usr/include/loadpng.h:67:27: error: ‘AL_CONST’ was not declared in this scope
   67 | APNG_FUNC(int, save_png, (AL_CONST char *filename, BITMAP *bmp, AL_CONST RGB *pal));
      |                           ^~~~~~~~
/usr/include/loadpng.h:25:58: note: in definition of macro ‘APNG_FUNC’
   25 |     #define APNG_FUNC(type, name, args) extern type name args
      |                                                          ^~~~
/usr/include/loadpng.h:67:52: error: ‘BITMAP’ was not declared in this scope
   67 | APNG_FUNC(int, save_png, (AL_CONST char *filename, BITMAP *bmp, AL_CONST RGB *pal));
      |                                                    ^~~~~~
/usr/include/loadpng.h:25:58: note: in definition of macro ‘APNG_FUNC’
   25 |     #define APNG_FUNC(type, name, args) extern type name args
      |                                                          ^~~~
/usr/include/loadpng.h:67:60: error: ‘bmp’ was not declared in this scope
   67 | APNG_FUNC(int, save_png, (AL_CONST char *filename, BITMAP *bmp, AL_CONST RGB *pal));
      |                                                            ^~~
/usr/include/loadpng.h:25:58: note: in definition of macro ‘APNG_FUNC’
   25 |     #define APNG_FUNC(type, name, args) extern type name args
      |                                                          ^~~~
/usr/include/loadpng.h:67:65: error: ‘AL_CONST’ was not declared in this scope
   67 | APNG_FUNC(int, save_png, (AL_CONST char *filename, BITMAP *bmp, AL_CONST RGB *pal));
      |                                                                 ^~~~~~~~
/usr/include/loadpng.h:25:58: note: in definition of macro ‘APNG_FUNC’
   25 |     #define APNG_FUNC(type, name, args) extern type name args
      |                                                          ^~~~