Temporary header file '/tmp/zDM1oc9LFc/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/KF5/KPim/importwizard/abstractaddressbook.h"
  #include "/usr/include/KF5/KPim/importwizard/abstractbase.h"
  #include "/usr/include/KF5/KPim/importwizard/abstractcalendar.h"
  #include "/usr/include/KF5/KPim/importwizard/abstractdisplayinfo.h"
  #include "/usr/include/KF5/KPim/importwizard/abstractimporter.h"
  #include "/usr/include/KF5/KPim/importwizard/abstractsettings.h"
  #include "/usr/include/KF5/KPim/importwizard/importwizardutil.h"
  #include "/usr/include/KF5/KPim/importwizard/libimportwizard_export.h"
  #include "/usr/include/KPim/importwizard_version.h"

  // add namespaces
  namespace Akonadi{typedef int tmp_add_type_1;}
  Akonadi::tmp_add_type_1 tmp_add_func_1(){return 0;};
  namespace KContacts{typedef int tmp_add_type_2;}
  KContacts::tmp_add_type_2 tmp_add_func_2(){return 0;};
  namespace LibImportWizard{typedef int tmp_add_type_3;}
  LibImportWizard::tmp_add_type_3 tmp_add_func_3(){return 0;};
  namespace MailImporter{typedef int tmp_add_type_4;}
  MailImporter::tmp_add_type_4 tmp_add_func_4(){return 0;};
  namespace PimCommon{typedef int tmp_add_type_5;}
  PimCommon::tmp_add_type_5 tmp_add_func_5(){return 0;};
  namespace QAlgorithmsPrivate{typedef int tmp_add_type_6;}
  QAlgorithmsPrivate::tmp_add_type_6 tmp_add_func_6(){return 0;};
  namespace Qt{typedef int tmp_add_type_7;}
  Qt::tmp_add_type_7 tmp_add_func_7(){return 0;};
  namespace QTextStreamFunctions{typedef int tmp_add_type_8;}
  QTextStreamFunctions::tmp_add_type_8 tmp_add_func_8(){return 0;};
  namespace QtGlobalStatic{typedef int tmp_add_type_9;}
  QtGlobalStatic::tmp_add_type_9 tmp_add_func_9(){return 0;};
  namespace QtMetaTypePrivate{typedef int tmp_add_type_10;}
  QtMetaTypePrivate::tmp_add_type_10 tmp_add_func_10(){return 0;};
  namespace QtMetaTypePrivate{namespace QtPrivate{typedef int tmp_add_type_11;}}
  QtMetaTypePrivate::QtPrivate::tmp_add_type_11 tmp_add_func_11(){return 0;};
  namespace QtMetaTypePrivate{namespace QtPrivate{namespace ContainerCapabilitiesMetaProgrammingHelper{typedef int tmp_add_type_12;}}}
  QtMetaTypePrivate::QtPrivate::ContainerCapabilitiesMetaProgrammingHelper::tmp_add_type_12 tmp_add_func_12(){return 0;};
  namespace QtPrivate{typedef int tmp_add_type_13;}
  QtPrivate::tmp_add_type_13 tmp_add_func_13(){return 0;};
  namespace QtPrivate{namespace DeprecatedRefClassBehavior{typedef int tmp_add_type_14;}}
  QtPrivate::DeprecatedRefClassBehavior::tmp_add_type_14 tmp_add_func_14(){return 0;};
  namespace QtPrivate{namespace SwapExceptionTester{typedef int tmp_add_type_15;}}
  QtPrivate::SwapExceptionTester::tmp_add_type_15 tmp_add_func_15(){return 0;};
  namespace QtSharedPointer{typedef int tmp_add_type_16;}
  QtSharedPointer::tmp_add_type_16 tmp_add_func_16(){return 0;};

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/zDM1oc9LFc/dump1.h"  -I/usr/include/arm-linux-gnueabihf/qt5 -I/usr/include/KF5/KConfigCore -I/usr/include/KF5/AkonadiCore -I/usr/include/arm-linux-gnueabihf/qt5/QtGui -I/usr/include/arm-linux-gnueabihf/qt5/QtCore

In file included from /tmp/zDM1oc9LFc/dump1.h:16:
/usr/include/KF5/KPim/importwizard/abstractimporter.h:9:10: fatal error: MailCommon/FilterImporterExporter: No such file or directory
    9 | #include <MailCommon/FilterImporterExporter>
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.