Temporary header file '/tmp/rdvxKiyU3H/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/verbiste-0.1/verbiste/FrenchVerbDictionary.h" #include "/usr/include/verbiste-0.1/verbiste/Trie.h" #include "/usr/include/verbiste-0.1/verbiste/c-api.h" #include "/usr/include/verbiste-0.1/verbiste/misc-types.h" // add namespaces namespace verbiste{typedef int tmp_add_type_1;} verbiste::tmp_add_type_1 tmp_add_func_1(){return 0;}; The GCC parameters: gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/rdvxKiyU3H/dump1.h" -I/usr/include/verbiste-0.1 In file included from /tmp/rdvxKiyU3H/dump1.h:12: /usr/include/verbiste-0.1/verbiste/FrenchVerbDictionary.h:30:10: fatal error: libxml/xmlmemory.h: No such file or directory 30 | #include | ^~~~~~~~~~~~~~~~~~~~ compilation terminated.