Temporary header file '/tmp/UW2ni7JTvm/dump1.h' with the following content will be compiled to create GCC translation unit dump: // add defines #define __STDC_VERSION__ 201710L #define _FILE_OFFSET_BITS 64 #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/ccd/ccd.h" #include "/usr/include/ccd/ccd_export.h" #include "/usr/include/ccd/compiler.h" #include "/usr/include/ccd/config.h" #include "/usr/include/ccd/quat.h" #include "/usr/include/ccd/vec3.h" // add classes _ccd_quat_t* tmp_add_class_0; _ccd_t* tmp_add_class_1; _ccd_vec3_t* tmp_add_class_2; The GCC parameters: gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/UW2ni7JTvm/dump1.h"