SYSCF bits

(This covers some thing that Pat found and some things I found while working
on those.)
Unscramble duplicate use of GREPPATH and GDBPATH symbols.
Add some more info to config.h.
Make missing SYSCF_FILE a fatal error.
Make a parse error in SYSCF_FILE a fatal error.
Rename PANICTRACE_GLIBC (et al) to PANICTRACE_LIBC (et al) since FreeBSD
 and Mac OS X (at least) also implement the needed API.
Allow SYSCF_FILE to be unreadable by the user (for setgid installs).
If SYSCF, do NOT fall back to the compiled in WIZARD account.
Put WIZARD into sysopt and remove special cases in authorize_wizard_mode().

src/sys.c

@@ -4,16 +4,25 @@
 
 #include "hack.h"
 
+/* for KR1ED config, WIZARD is 0 or 1 and WIZARD_NAME is a string;
+   for usual config, WIZARD is the string; forcing WIZARD_NAME to match it
+   eliminates conditional testing for which one to use in string ops */
+#ifndef KR1ED
+# undef WIZARD_NAME
+# define WIZARD_NAME WIZARD
+#endif
+
 struct sysopt sysopt;
 
 void
 sys_early_init(){
 	sysopt.support = NULL;
 	sysopt.recover = NULL;
-#ifdef notyet
-	/* replace use of WIZARD vs WIZARD_NAME vs KR1ED, by filling this in */
-#endif
+#ifdef SYSCF
 	sysopt.wizards = NULL;
+#else
+	sysopt.wizards = WIZARD_NAME;
+#endif
 	sysopt.shellers = NULL;
 	sysopt.maxplayers = 0;	/* XXX eventually replace MAX_NR_OF_PLAYERS */
 
@@ -32,17 +41,17 @@ sys_early_init(){
 
 #ifdef PANICTRACE
 		/* panic options */
-	sysopt.gdbpath = NULL;
-	sysopt.greppath = NULL;
+	sysopt.gdbpath = strdup(GDBPATH);
+	sysopt.greppath = strdup(GREPPATH);
 # ifdef BETA
 	sysopt.panictrace_gdb = 1;
-#  ifdef PANICTRACE_GLIBC
-	sysopt.panictrace_glibc = 2;
+#  ifdef PANICTRACE_LIBC
+	sysopt.panictrace_libc = 2;
 #  endif
 # else
 	sysopt.panictrace_gdb = 0;
-#  ifdef PANICTRACE_GLIBC
-	sysopt.panictrace_glibc = 0;
+#  ifdef PANICTRACE_LIBC
+	sysopt.panictrace_libc = 0;
 #  endif
 # endif
 #endif