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The C and C++ Include Header Files

cat -n /usr/include/x86_64-linux-gnu/bits/siginfo-consts-arch.h

     1	/* Architecture-specific additional siginfo constants.  */
     2	#ifndef _BITS_SIGINFO_CONSTS_ARCH_H
     3	#define _BITS_SIGINFO_CONSTS_ARCH_H 1
     4	
     5	/* This architecture has no additional siginfo constants.  */
     6	
     7	#endif