Temporary header file '/tmp/gfPOZzOSYX/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/arm-linux-gnueabihf/fastcdr/config.h" #include "/usr/include/fastcdr/Cdr.h" #include "/usr/include/fastcdr/FastBuffer.h" #include "/usr/include/fastcdr/FastCdr.h" #include "/usr/include/fastcdr/eProsima_auto_link.h" #include "/usr/include/fastcdr/exceptions/BadParamException.h" #include "/usr/include/fastcdr/exceptions/Exception.h" #include "/usr/include/fastcdr/exceptions/NotEnoughMemoryException.h" #include "/usr/include/fastcdr/fastcdr_dll.h" // add namespaces namespace eprosima{typedef int tmp_add_type_1;} eprosima::tmp_add_type_1 tmp_add_func_1(){return 0;}; namespace eprosima{namespace fastcdr{typedef int tmp_add_type_2;}} eprosima::fastcdr::tmp_add_type_2 tmp_add_func_2(){return 0;}; namespace eprosima{namespace fastcdr{namespace exception{typedef int tmp_add_type_3;}}} eprosima::fastcdr::exception::tmp_add_type_3 tmp_add_func_3(){return 0;}; // add classes _G_fpos64_t* tmp_add_class_0; _G_fpos_t* tmp_add_class_1; _IO_cookie_io_functions_t* tmp_add_class_2; mallinfo2* tmp_add_class_3; The GCC parameters: gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/gfPOZzOSYX/dump1.h" /tmp/gfPOZzOSYX/dump1.h:34:3: error: ‘mallinfo2’ does not name a type 34 | mallinfo2* tmp_add_class_3; | ^~~~~~~~~