more of -Wall fixes from Cristian Ionescu-Idbohrn.
Some are fixing real bugs.

function                                             old     new   delta
syslogd_main                                         938     958     +20
get_signum                                           136     143      +7
obj_load                                             777     782      +5
recv_from_to                                         210     214      +4
get_next_block                                      1795    1799      +4
display_topmem_process_list                         1117    1121      +4
logread_main                                         484     487      +3
buffer_fill_and_print                                 73      76      +3
kill_main                                            687     689      +2
ll_remember_index                                    240     241      +1
do_stats                                             452     453      +1
if_readconf                                          166     165      -1
display_process_list                                1192    1191      -1
run_applet_and_exit                                  507     505      -2
print_signames                                        33      31      -2
parse_one_line                                      1092    1090      -2
find_out_spec                                         57      55      -2
add_ksymoops_symbols                                 421     419      -2
ash_main                                            1407    1402      -5
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 11/8 up/down: 54/-17)            Total: 37 bytes

diff --git a/archival/libunarchive/decompress_bunzip2.c b/archival/libunarchive/decompress_bunzip2.c
index c1b1273..f74fdf1 100644
--- a/archival/libunarchive/decompress_bunzip2.c
+++ b/archival/libunarchive/decompress_bunzip2.c
@@ -103,7 +103,7 @@
 	/* If we need to get more data from the byte buffer, do so.  (Loop getting
 	   one byte at a time to enforce endianness and avoid unaligned access.) */
 
-	while (bd->inbufBitCount < bits_wanted) {
+	while ((int)(bd->inbufBitCount) < bits_wanted) {
 
 		/* If we need to read more data from file into byte buffer, do so */
 
@@ -172,7 +172,7 @@
 
 	if (get_bits(bd, 1)) return RETVAL_OBSOLETE_INPUT;
 	origPtr = get_bits(bd, 24);
-	if (origPtr > dbufSize) return RETVAL_DATA_ERROR;
+	if ((int)origPtr > dbufSize) return RETVAL_DATA_ERROR;
 
 	/* mapping table: if some byte values are never used (encoding things
 	   like ascii text), the compression code removes the gaps to have fewer
@@ -368,7 +368,7 @@
 		   j = get_bits(bd, hufGroup->maxLen);
 		 */
 
-		while (bd->inbufBitCount < hufGroup->maxLen) {
+		while ((int)(bd->inbufBitCount) < hufGroup->maxLen) {
 			if (bd->inbufPos == bd->inbufCount) {
 				j = get_bits(bd, hufGroup->maxLen);
 				goto got_huff_bits;
@@ -505,7 +505,7 @@
 	   it doesn't qualify as a run (hence writeRunCountdown=5). */
 
 	if (dbufCount) {
-		if (origPtr >= dbufCount) return RETVAL_DATA_ERROR;
+		if ((int)origPtr >= dbufCount) return RETVAL_DATA_ERROR;
 		bd->writePos = dbuf[origPtr];
 	    bd->writeCurrent = (unsigned char)(bd->writePos & 0xff);
 		bd->writePos >>= 8;