Several ports fixes

lib/Makefile

@@ -84,7 +84,7 @@ libnodelist.a:	${NODELIST_OBJS}
 		ar r $@ $?
 		${RANLIB} $@
 
-mbcharsetc:	${CHC_OBJS} ${LIBS}
+mbcharsetc:	${CHC_OBJS}
 		${CC} -o mbcharsetc ${CHC_OBJS} ${LDFLAGS} ${LIBS}
 
 charset.bin:	mbcharsetc ${MAPS}

lib/mbselib.h

@@ -90,7 +90,9 @@
 #include <zlib.h>
 #endif
 #include <pthread.h>
+#if !defined(__ppc__)
 #include <sys/poll.h>
+#endif
 
 /* used to use #elif, but native braindead hpux 9.00 c compiler didn't 
  *  * understand it */
@@ -138,7 +140,7 @@ struct termios;
 
 #include <stddef.h>
 #include <fcntl.h>
-#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
+#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__ppc__)
 #include <netinet/in_systm.h>
 #include <libgen.h>
 #endif

lib/signame.c

@@ -36,7 +36,7 @@
  *  Signal handler signal names.
  */
 
-#if defined(__i386__)
+#if defined(__i386__) || defined(__x86_64__)
 
 char	SigName[32][16] = {	"NOSIGNAL",
 		"SIGHUP",	"SIGINT",	"SIGQUIT",	"SIGILL",
@@ -48,7 +48,7 @@ char	SigName[32][16] = {	"NOSIGNAL",
 		"SIGXFSZ",	"SIGVTALRM",	"SIGPROF",	"SIGWINCH",
 		"SIGIO",	"SIGPWR",	"SIGUNUSED"};
 
-#elif defined(__PPC__)
+#elif defined(__PPC__) || defined(__ppc__)
 
 char    SigName[32][16] = {     "NOSIGNAL",
                 "SIGHUP",       "SIGINT",       "SIGQUIT",      "SIGILL",

lib/strutil.c

@@ -354,6 +354,8 @@ char *OsCPU()
 {
 #ifdef __i386__
     return (char *)"i386";
+#elif __x86_64__
+    return (char *)"x86_64";
 #elif __PPC__
     return (char *)"PPC";
 #elif __sparc__