Patch attached. Needed this for sudo update.
Please tell me how I am wrong. Thanks.
Index: sys/sys/unistd.h =================================================================== RCS file: /cvsroot/src/sys/sys/unistd.h,v retrieving revision 1.61 diff -u -r1.61 unistd.h --- sys/sys/unistd.h 4 Aug 2016 06:43:43 -0000 1.61 +++ sys/sys/unistd.h 14 Oct 2019 20:35:45 -0000 @@ -320,6 +320,7 @@ #define _SC_DELAYTIMER_MAX 92 #define _SC_SIGQUEUE_MAX 93 #define _SC_REALTIME_SIGNALS 94 +#define _SC_RTSIG_MAX 95 /* Extensions found in Solaris and Linux. */ #define _SC_PHYS_PAGES 121 Index: lib/libc/gen/sysconf.c =================================================================== RCS file: /cvsroot/src/lib/libc/gen/sysconf.c,v retrieving revision 1.41 diff -u -r1.41 sysconf.c --- lib/libc/gen/sysconf.c 4 Aug 2016 06:43:43 -0000 1.41 +++ lib/libc/gen/sysconf.c 14 Oct 2019 20:35:48 -0000 @@ -339,6 +339,8 @@ return _GETPW_R_SIZE_MAX; /* Unsorted */ + case _SC_RTSIG_MAX: + return SIGRTMAX; case _SC_HOST_NAME_MAX: return MAXHOSTNAMELEN; case _SC_PASS_MAX: