Temporary header file '/tmp/YHTq4hvrJu/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/gnunet-gtk/gnunet_gtk.h" #include "/usr/include/gnunet-gtk/gnunet_gtk_namestore_plugin.h" The GCC parameters: gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/YHTq4hvrJu/dump1.h" -I/usr/include/pango-1.0 -I/usr/include/libgladeui-2.0 -I/usr/include/harfbuzz -I/usr/include/gtk-3.0 -I/usr/include/glib-2.0 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/cairo -I/usr/include/atk-1.0 -I/lib/arm-linux-gnueabihf/glib-2.0/include In file included from /tmp/YHTq4hvrJu/dump1.h:12: /usr/include/gnunet-gtk/gnunet_gtk.h:29:10: fatal error: gnunet/gnunet_util_lib.h: No such file or directory 29 | #include | ^~~~~~~~~~~~~~~~~~~~~~~~~~ compilation terminated.