Temporary header file '/tmp/w_VFfIsdNF/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/klfbackend/klfbackend.h"
  #include "/usr/include/klfbackend/klfblockprocess.h"
  #include "/usr/include/klfbackend/klffilterprocess.h"
  #include "/usr/include/klfbackend/klflatexpreviewthread.h"
  #include "/usr/include/klfbackend/klfuserscript.h"
  #include "/usr/include/klftools/klfadvancedconfigeditor.h"
  #include "/usr/include/klftools/klfcolorchooser.h"
  #include "/usr/include/klftools/klfconfigbase.h"
  #include "/usr/include/klftools/klfdatautil.h"
  #include "/usr/include/klftools/klfdebug.h"
  #include "/usr/include/klftools/klfdefs.h"
  #include "/usr/include/klftools/klfdisplaylabel.h"
  #include "/usr/include/klftools/klfenumlistwidget.h"
  #include "/usr/include/klftools/klffactory.h"
  #include "/usr/include/klftools/klfflowlayout.h"
  #include "/usr/include/klftools/klfflowlistwidget.h"
  #include "/usr/include/klftools/klfguiutil.h"
  #include "/usr/include/klftools/klfitemviewsearchtarget.h"
  #include "/usr/include/klftools/klfiteratorsearchable.h"
  #include "/usr/include/klftools/klflatexedit.h"
  #include "/usr/include/klftools/klfpathchooser.h"
  #include "/usr/include/klftools/klfpixmapbutton.h"
  #include "/usr/include/klftools/klfpobj.h"
  #include "/usr/include/klftools/klfpobjeditwidget.h"
  #include "/usr/include/klftools/klfprogerr.h"
  #include "/usr/include/klftools/klfrelativefont.h"
  #include "/usr/include/klftools/klfsearchbar.h"
  #include "/usr/include/klftools/klfsidewidget.h"
  #include "/usr/include/klftools/klfsysinfo.h"
  #include "/usr/include/klftools/klfunitinput.h"
  #include "/usr/include/klftools/klfutil.h"
  #include "/usr/include/klftools/qtcolortriangle.h"

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

In file included from /tmp/w_VFfIsdNF/dump1.h:12:
/usr/include/klfbackend/klfbackend.h:27:10: fatal error: QString: No such file or directory
   27 | #include <QString>
      |          ^~~~~~~~~
compilation terminated.