Temporary header file '/tmp/Yt6FOYC090/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/coap3/block.h"
  #include "/usr/include/coap3/coap.h"
  #include "/usr/include/coap3/coap_address.h"
  #include "/usr/include/coap3/coap_async.h"
  #include "/usr/include/coap3/coap_cache.h"
  #include "/usr/include/coap3/coap_debug.h"
  #include "/usr/include/coap3/coap_dtls.h"
  #include "/usr/include/coap3/coap_event.h"
  #include "/usr/include/coap3/coap_forward_decls.h"
  #include "/usr/include/coap3/coap_hashkey.h"
  #include "/usr/include/coap3/coap_io.h"
  #include "/usr/include/coap3/coap_mutex.h"
  #include "/usr/include/coap3/coap_option.h"
  #include "/usr/include/coap3/coap_prng.h"
  #include "/usr/include/coap3/coap_session.h"
  #include "/usr/include/coap3/coap_subscribe.h"
  #include "/usr/include/coap3/coap_time.h"
  #include "/usr/include/coap3/encode.h"
  #include "/usr/include/coap3/libcoap.h"
  #include "/usr/include/coap3/mem.h"
  #include "/usr/include/coap3/net.h"
  #include "/usr/include/coap3/pdu.h"
  #include "/usr/include/coap3/resource.h"
  #include "/usr/include/coap3/str.h"
  #include "/usr/include/coap3/uri.h"

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/Yt6FOYC090/dump1.h"

In file included from /tmp/Yt6FOYC090/dump1.h:21:
/usr/include/coap3/coap_hashkey.h:21:10: fatal error: uthash.h: No such file or directory
   21 | #include "uthash.h"
      |          ^~~~~~~~~~
compilation terminated.