"error: expected identifier before numeric constant " in generated c file -

i'm trying build code base , got error

"error: expected identifier before numeric constant "

in generated c file while building

and line number refers rw_offsetof( struct __pthread_mutex_s, 1 ),

sizeof( pthread_attr_t ), sizeof(((pthread_attr_t *)rw_ue_null)->__size ), sizeof( struct __pthread_internal_slist ), rw_offsetof( struct __pthread_internal_slist, __next ), sizeof( struct __pthread_mutex_s ), rw_offsetof( struct __pthread_mutex_s, __lock ), rw_offsetof( struct __pthread_mutex_s, __count ), rw_offsetof( struct __pthread_mutex_s, __owner ), rw_offsetof( struct __pthread_mutex_s, __kind ), rw_offsetof( struct __pthread_mutex_s, __nusers ), rw_offsetof( struct __pthread_mutex_s, 1 ), sizeof( pthread_mutex_t ), sizeof(((pthread_mutex_t *)rw_ue_null)->__size ), sizeof( pthread_mutexattr_t ), sizeof(((pthread_mutexattr_t *)rw_ue_null)->__size ), sizeof( pthread_cond_t ), sizeof(((pthread_cond_t *)rw_ue_null)->__size ), sizeof( pthread_condattr_t ), sizeof(((pthread_condattr_t *)rw_ue_null)->__size ), sizeof( sem_t ), sizeof(((sem_t *)rw_ue_null)->__size ), 

i found __pthread_mutex_s defined in pthreadtypes.h

typedef union   {     struct  __pthread_mutex_s     {       int __lock;       unsigned int __count;       int __owner;       int __kind;       unsigned int __nusers;       __extension__ union       {         int __spins;         __pthread_slist_t __list;       };     } __data;     char __size[__sizeof_pthread_mutex_t];     long int __align;   } pthread_mutex_t;   

as system file, how can cause problem ??

the second parameter rw_offsetof should name of field within struct named in first parameter. usage in line 1367 looks correct, in line 1368 have literal constant 1 instead of name of field, hence error.

without more context it's hard tell how error occurred, best guess have preprocessor macro somewhere same name field in __pthread_mutex_s (e.g. __count or __list), , macro #defined 1.