Temporary header file '/tmp/xqWn9L8PqB/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/claws-mail/account.h"
  #include "/usr/include/claws-mail/action.h"
  #include "/usr/include/claws-mail/adbookbase.h"
  #include "/usr/include/claws-mail/addr_compl.h"
  #include "/usr/include/claws-mail/addrbook.h"
  #include "/usr/include/claws-mail/addrcache.h"
  #include "/usr/include/claws-mail/addrclip.h"
  #include "/usr/include/claws-mail/addrcustomattr.h"
  #include "/usr/include/claws-mail/addrdefs.h"
  #include "/usr/include/claws-mail/addrduplicates.h"
  #include "/usr/include/claws-mail/addressadd.h"
  #include "/usr/include/claws-mail/addressbook-dbus.h"
  #include "/usr/include/claws-mail/addressbook.h"
  #include "/usr/include/claws-mail/addressbook_foldersel.h"
  #include "/usr/include/claws-mail/addressitem.h"
  #include "/usr/include/claws-mail/addrgather.h"
  #include "/usr/include/claws-mail/addrharvest.h"
  #include "/usr/include/claws-mail/addrindex.h"
  #include "/usr/include/claws-mail/addritem.h"
  #include "/usr/include/claws-mail/addrmerge.h"
  #include "/usr/include/claws-mail/addrquery.h"
  #include "/usr/include/claws-mail/addrselect.h"
  #include "/usr/include/claws-mail/advsearch.h"
  #include "/usr/include/claws-mail/alertpanel.h"
  #include "/usr/include/claws-mail/autofaces.h"
  #include "/usr/include/claws-mail/avatars.h"
  #include "/usr/include/claws-mail/browseldap.h"
  #include "/usr/include/claws-mail/claws-features.h"
  #include "/usr/include/claws-mail/common/claws.h"
  #include "/usr/include/claws-mail/common/codeconv.h"
  #include "/usr/include/claws-mail/common/defs.h"
  #include "/usr/include/claws-mail/common/file-utils.h"
  #include "/usr/include/claws-mail/common/hooks.h"
  #include "/usr/include/claws-mail/common/log.h"
  #include "/usr/include/claws-mail/common/md5.h"
  #include "/usr/include/claws-mail/common/mgutils.h"
  #include "/usr/include/claws-mail/common/passcrypt.h"
  #include "/usr/include/claws-mail/common/pkcs5_pbkdf2.h"
  #include "/usr/include/claws-mail/common/plugin.h"
  #include "/usr/include/claws-mail/common/prefs.h"
  #include "/usr/include/claws-mail/common/progressindicator.h"
  #include "/usr/include/claws-mail/common/proxy.h"
  #include "/usr/include/claws-mail/common/quoted-printable.h"
  #include "/usr/include/claws-mail/common/session.h"
  #include "/usr/include/claws-mail/common/smtp.h"
  #include "/usr/include/claws-mail/common/socket.h"
  #include "/usr/include/claws-mail/common/ssl.h"
  #include "/usr/include/claws-mail/common/ssl_certificate.h"
  #include "/usr/include/claws-mail/common/string_match.h"
  #include "/usr/include/claws-mail/common/stringtable.h"
  #include "/usr/include/claws-mail/common/tags.h"
  #include "/usr/include/claws-mail/common/template.h"
  #include "/usr/include/claws-mail/common/timing.h"
  #include "/usr/include/claws-mail/common/tlds.h"
  #include "/usr/include/claws-mail/common/unmime.h"
  #include "/usr/include/claws-mail/common/utils.h"
  #include "/usr/include/claws-mail/common/uuencode.h"
  #include "/usr/include/claws-mail/common/version.h"
  #include "/usr/include/claws-mail/common/xml.h"
  #include "/usr/include/claws-mail/common/xmlprops.h"
  #include "/usr/include/claws-mail/compose.h"
  #include "/usr/include/claws-mail/crash.h"
  #include "/usr/include/claws-mail/customheader.h"
  #include "/usr/include/claws-mail/displayheader.h"
  #include "/usr/include/claws-mail/editaddress.h"
  #include "/usr/include/claws-mail/editaddress_other_attributes_ldap.h"
  #include "/usr/include/claws-mail/editbook.h"
  #include "/usr/include/claws-mail/editgroup.h"
  #include "/usr/include/claws-mail/editjpilot.h"
  #include "/usr/include/claws-mail/editldap.h"
  #include "/usr/include/claws-mail/editldap_basedn.h"
  #include "/usr/include/claws-mail/edittags.h"
  #include "/usr/include/claws-mail/editvcard.h"
  #include "/usr/include/claws-mail/enriched.h"
  #include "/usr/include/claws-mail/entity.h"
  #include "/usr/include/claws-mail/etpan/etpan-errors.h"
  #include "/usr/include/claws-mail/etpan/etpan-ssl.h"
  #include "/usr/include/claws-mail/etpan/etpan-thread-manager-types.h"
  #include "/usr/include/claws-mail/etpan/etpan-thread-manager.h"
  #include "/usr/include/claws-mail/etpan/imap-thread.h"
  #include "/usr/include/claws-mail/etpan/nntp-thread.h"
  #include "/usr/include/claws-mail/exphtmldlg.h"
  #include "/usr/include/claws-mail/expldifdlg.h"
  #include "/usr/include/claws-mail/export.h"
  #include "/usr/include/claws-mail/exporthtml.h"
  #include "/usr/include/claws-mail/exportldif.h"
  #include "/usr/include/claws-mail/file_checker.h"
  #include "/usr/include/claws-mail/filtering.h"
  #include "/usr/include/claws-mail/folder.h"
  #include "/usr/include/claws-mail/folder_item_prefs.h"
  #include "/usr/include/claws-mail/foldersel.h"
  #include "/usr/include/claws-mail/folderutils.h"
  #include "/usr/include/claws-mail/folderview.h"
  #include "/usr/include/claws-mail/grouplistdialog.h"
  #include "/usr/include/claws-mail/gtk/about.h"
  #include "/usr/include/claws-mail/gtk/authors.h"
  #include "/usr/include/claws-mail/gtk/claws-marshal.h"
  #include "/usr/include/claws-mail/gtk/colorlabel.h"
  #include "/usr/include/claws-mail/gtk/combobox.h"
  #include "/usr/include/claws-mail/gtk/description_window.h"
  #include "/usr/include/claws-mail/gtk/filesel.h"
  #include "/usr/include/claws-mail/gtk/foldersort.h"
  #include "/usr/include/claws-mail/gtk/gtkaspell.h"
  #include "/usr/include/claws-mail/gtk/gtkcmclist.h"
  #include "/usr/include/claws-mail/gtk/gtkcmctree.h"
  #include "/usr/include/claws-mail/gtk/gtksctree.h"
  #include "/usr/include/claws-mail/gtk/gtkshruler.h"
  #include "/usr/include/claws-mail/gtk/gtkunit.h"
  #include "/usr/include/claws-mail/gtk/gtkutils.h"
  #include "/usr/include/claws-mail/gtk/gtkvscrollbutton.h"
  #include "/usr/include/claws-mail/gtk/headers.h"
  #include "/usr/include/claws-mail/gtk/icon_legend.h"
  #include "/usr/include/claws-mail/gtk/inputdialog.h"
  #include "/usr/include/claws-mail/gtk/logwindow.h"
  #include "/usr/include/claws-mail/gtk/manage_window.h"
  #include "/usr/include/claws-mail/gtk/menu.h"
  #include "/usr/include/claws-mail/gtk/pluginwindow.h"
  #include "/usr/include/claws-mail/gtk/prefswindow.h"
  #include "/usr/include/claws-mail/gtk/progressdialog.h"
  #include "/usr/include/claws-mail/gtk/quicksearch.h"
  #include "/usr/include/claws-mail/gtk/spell_entry.h"
  #include "/usr/include/claws-mail/gtk/sslcertwindow.h"
  #include "/usr/include/claws-mail/headerview.h"
  #include "/usr/include/claws-mail/html.h"
  #include "/usr/include/claws-mail/image_viewer.h"
  #include "/usr/include/claws-mail/imap.h"
  #include "/usr/include/claws-mail/imap_gtk.h"
  #include "/usr/include/claws-mail/import.h"
  #include "/usr/include/claws-mail/importldif.h"
  #include "/usr/include/claws-mail/importmutt.h"
  #include "/usr/include/claws-mail/importpine.h"
  #include "/usr/include/claws-mail/inc.h"
  #include "/usr/include/claws-mail/jpilot.h"
  #include "/usr/include/claws-mail/ldapctrl.h"
  #include "/usr/include/claws-mail/ldaplocate.h"
  #include "/usr/include/claws-mail/ldapquery.h"
  #include "/usr/include/claws-mail/ldapserver.h"
  #include "/usr/include/claws-mail/ldapupdate.h"
  #include "/usr/include/claws-mail/ldaputil.h"
  #include "/usr/include/claws-mail/ldif.h"
  #include "/usr/include/claws-mail/localfolder.h"
  #include "/usr/include/claws-mail/main.h"
  #include "/usr/include/claws-mail/mainwindow.h"
  #include "/usr/include/claws-mail/manual.h"
  #include "/usr/include/claws-mail/matcher.h"
  #include "/usr/include/claws-mail/matcher_parser.h"
  #include "/usr/include/claws-mail/matcher_parser_lex.h"
  #include "/usr/include/claws-mail/matcher_parser_parse.h"
  #include "/usr/include/claws-mail/matchertypes.h"
  #include "/usr/include/claws-mail/mbox.h"
  #include "/usr/include/claws-mail/message_search.h"
  #include "/usr/include/claws-mail/messageview.h"
  #include "/usr/include/claws-mail/mh.h"
  #include "/usr/include/claws-mail/mh_gtk.h"
  #include "/usr/include/claws-mail/mimeview.h"
  #include "/usr/include/claws-mail/msgcache.h"
  #include "/usr/include/claws-mail/mutt.h"
  #include "/usr/include/claws-mail/news.h"
  #include "/usr/include/claws-mail/news_gtk.h"
  #include "/usr/include/claws-mail/noticeview.h"
  #include "/usr/include/claws-mail/oauth2.h"
  #include "/usr/include/claws-mail/partial_download.h"
  #include "/usr/include/claws-mail/password.h"
  #include "/usr/include/claws-mail/password_gtk.h"
  #include "/usr/include/claws-mail/passwordstore.h"
  #include "/usr/include/claws-mail/pine.h"
  #include "/usr/include/claws-mail/plugins/pgpcore/passphrase.h"
  #include "/usr/include/claws-mail/plugins/pgpcore/pgp_utils.h"
  #include "/usr/include/claws-mail/plugins/pgpcore/prefs_gpg.h"
  #include "/usr/include/claws-mail/plugins/pgpcore/sgpgme.h"
  #include "/usr/include/claws-mail/pop.h"
  #include "/usr/include/claws-mail/prefs_account.h"
  #include "/usr/include/claws-mail/prefs_actions.h"
  #include "/usr/include/claws-mail/prefs_common.h"
  #include "/usr/include/claws-mail/prefs_compose_writing.h"
  #include "/usr/include/claws-mail/prefs_customheader.h"
  #include "/usr/include/claws-mail/prefs_display_header.h"
  #include "/usr/include/claws-mail/prefs_ext_prog.h"
  #include "/usr/include/claws-mail/prefs_filtering.h"
  #include "/usr/include/claws-mail/prefs_filtering_action.h"
  #include "/usr/include/claws-mail/prefs_folder_column.h"
  #include "/usr/include/claws-mail/prefs_folder_item.h"
  #include "/usr/include/claws-mail/prefs_fonts.h"
  #include "/usr/include/claws-mail/prefs_gtk.h"
  #include "/usr/include/claws-mail/prefs_image_viewer.h"
  #include "/usr/include/claws-mail/prefs_logging.h"
  #include "/usr/include/claws-mail/prefs_matcher.h"
  #include "/usr/include/claws-mail/prefs_message.h"
  #include "/usr/include/claws-mail/prefs_migration.h"
  #include "/usr/include/claws-mail/prefs_msg_colors.h"
  #include "/usr/include/claws-mail/prefs_other.h"
  #include "/usr/include/claws-mail/prefs_proxy.h"
  #include "/usr/include/claws-mail/prefs_quote.h"
  #include "/usr/include/claws-mail/prefs_receive.h"
  #include "/usr/include/claws-mail/prefs_send.h"
  #include "/usr/include/claws-mail/prefs_spelling.h"
  #include "/usr/include/claws-mail/prefs_summaries.h"
  #include "/usr/include/claws-mail/prefs_summary_column.h"
  #include "/usr/include/claws-mail/prefs_summary_open.h"
  #include "/usr/include/claws-mail/prefs_template.h"
  #include "/usr/include/claws-mail/prefs_themes.h"
  #include "/usr/include/claws-mail/prefs_toolbar.h"
  #include "/usr/include/claws-mail/prefs_wrapping.h"
  #include "/usr/include/claws-mail/printing.h"
  #include "/usr/include/claws-mail/privacy.h"
  #include "/usr/include/claws-mail/procheader.h"
  #include "/usr/include/claws-mail/procmime.h"
  #include "/usr/include/claws-mail/procmsg.h"
  #include "/usr/include/claws-mail/proctypes.h"
  #include "/usr/include/claws-mail/quote_fmt.h"
  #include "/usr/include/claws-mail/quote_fmt_lex.h"
  #include "/usr/include/claws-mail/quote_fmt_parse.h"
  #include "/usr/include/claws-mail/recv.h"
  #include "/usr/include/claws-mail/remotefolder.h"
  #include "/usr/include/claws-mail/send_message.h"
  #include "/usr/include/claws-mail/setup.h"
  #include "/usr/include/claws-mail/sourcewindow.h"
  #include "/usr/include/claws-mail/ssl_manager.h"
  #include "/usr/include/claws-mail/statusbar.h"
  #include "/usr/include/claws-mail/stock_pixmap.h"
  #include "/usr/include/claws-mail/summary_search.h"
  #include "/usr/include/claws-mail/summaryview.h"
  #include "/usr/include/claws-mail/textview.h"
  #include "/usr/include/claws-mail/toolbar.h"
  #include "/usr/include/claws-mail/undo.h"
  #include "/usr/include/claws-mail/uri_opener.h"
  #include "/usr/include/claws-mail/vcard.h"
  #include "/usr/include/claws-mail/viewtypes.h"
  #include "/usr/include/claws-mail/wizard.h"

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/xqWn9L8PqB/dump1.h"  -I/usr/include/claws-mail -I/usr/include/claws-mail/gtk -I/usr/include/claws-mail/common -I/usr/include/glib-2.0 -I/usr/include/enchant-2 -I/lib/arm-linux-gnueabihf/glib-2.0/include

In file included from /usr/include/claws-mail/account.h:25,
                 from /tmp/xqWn9L8PqB/dump1.h:12:
/usr/include/claws-mail/prefs_gtk.h:24:10: fatal error: gtk/gtk.h: No such file or directory
   24 | #include <gtk/gtk.h>
      |          ^~~~~~~~~~~
compilation terminated.

