Temporary header file '/tmp/NmcY5WmZ3Q/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/LibIME/libime/jyutping/jyutpingcontext.h" #include "/usr/include/LibIME/libime/jyutping/jyutpingdata.h" #include "/usr/include/LibIME/libime/jyutping/jyutpingdecoder.h" #include "/usr/include/LibIME/libime/jyutping/jyutpingdictionary.h" #include "/usr/include/LibIME/libime/jyutping/jyutpingencoder.h" #include "/usr/include/LibIME/libime/jyutping/jyutpingime.h" #include "/usr/include/LibIME/libime/jyutping/jyutpingmatchstate.h" #include "/usr/include/LibIME/libime/jyutping/libimejyutping_export.h" The GCC parameters: gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/NmcY5WmZ3Q/dump1.h" -I/usr/include/LibIME In file included from /tmp/NmcY5WmZ3Q/dump1.h:12: /usr/include/LibIME/libime/jyutping/jyutpingcontext.h:11:10: fatal error: libime/core/inputbuffer.h: No such file or directory 11 | #include | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ compilation terminated.