Temporary header file '/tmp/hlbz_vOBe2/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/dogleg.h" // add classes SuiteSparse_config_struct* tmp_add_class_0; _G_fpos64_t* tmp_add_class_1; _G_fpos_t* tmp_add_class_2; _IO_cookie_io_functions_t* tmp_add_class_3; cholmod_common_struct* tmp_add_class_4; cholmod_dense_struct* tmp_add_class_5; cholmod_descendant_score_t* tmp_add_class_6; cholmod_factor_struct* tmp_add_class_7; cholmod_sparse_struct* tmp_add_class_8; cholmod_triplet_struct* tmp_add_class_9; dogleg_outliers_t* tmp_add_class_10; The GCC parameters: gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/hlbz_vOBe2/dump1.h"