Temporary header file '/tmp/3DspSUeah1/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/cleri/choice.h"
  #include "/usr/include/cleri/cleri.h"
  #include "/usr/include/cleri/dup.h"
  #include "/usr/include/cleri/expecting.h"
  #include "/usr/include/cleri/grammar.h"
  #include "/usr/include/cleri/keyword.h"
  #include "/usr/include/cleri/kwcache.h"
  #include "/usr/include/cleri/list.h"
  #include "/usr/include/cleri/node.h"
  #include "/usr/include/cleri/olist.h"
  #include "/usr/include/cleri/optional.h"
  #include "/usr/include/cleri/parse.h"
  #include "/usr/include/cleri/prio.h"
  #include "/usr/include/cleri/ref.h"
  #include "/usr/include/cleri/regex.h"
  #include "/usr/include/cleri/repeat.h"
  #include "/usr/include/cleri/rule.h"
  #include "/usr/include/cleri/sequence.h"
  #include "/usr/include/cleri/this.h"
  #include "/usr/include/cleri/token.h"
  #include "/usr/include/cleri/tokens.h"
  #include "/usr/include/cleri/version.h"

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/3DspSUeah1/dump1.h"

In file included from /usr/include/cleri/cleri.h:26,
                 from /usr/include/cleri/choice.h:10,
                 from /tmp/3DspSUeah1/dump1.h:12:
/usr/include/cleri/regex.h:9:10: fatal error: pcre2.h: No such file or directory
    9 | #include <pcre2.h>
      |          ^~~~~~~~~
compilation terminated.