*: add -Wunused-parameter; fix resulting breakage

function                                             old     new   delta
procps_scan                                         1265    1298     +33
aliascmd                                             278     283      +5
parse_file_cmd                                       116     120      +4
dname_enc                                            373     377      +4
setcmd                                                90      93      +3
execcmd                                               57      60      +3
count_lines                                           72      74      +2
process_command_subs                                 340     339      -1
test_main                                            409     407      -2
mknod_main                                           179     177      -2
handle_incoming_and_exit                            2653    2651      -2
argstr                                              1312    1310      -2
shiftcmd                                             131     128      -3
exitcmd                                               46      43      -3
dotcmd                                               297     294      -3
breakcmd                                              86      83      -3
evalpipe                                             353     349      -4
evalcommand                                         1180    1176      -4
evalcmd                                              109     105      -4
send_tree                                            374     369      -5
mkfifo_main                                           82      77      -5
evalsubshell                                         152     147      -5
typecmd                                               75      69      -6
letcmd                                                61      55      -6
add_cmd                                             1190    1183      -7
main                                                 891     883      -8
ash_main                                            1415    1407      -8
parse_stream                                        1377    1367     -10
alloc_procps_scan                                     55       -     -55
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 7/21 up/down: 54/-148)          Total: -94 bytes
   text    data     bss     dec     hex filename
 797195     658    7428  805281   c49a1 busybox_old
 797101     658    7428  805187   c4943 busybox_unstripped

10 files changed, 18 insertions, 18 deletions

diff --git a/procps/fuser.c b/procps/fuser.c
index d625b16ab..48c9bdc1e 100644
--- a/procps/fuser.c
+++ b/procps/fuser.c
@@ -267,7 +267,7 @@ static int kill_pid_list(pid_list *plist, int sig)
 }
 
 int fuser_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int fuser_main(int argc, char **argv)
+int fuser_main(int argc ATTRIBUTE_UNUSED, char **argv)
 {
         pid_list *plist;
         inode_list *ilist;
diff --git a/procps/nmeter.c b/procps/nmeter.c
index 7ab2865c8..b6e754b7a 100644
--- a/procps/nmeter.c
+++ b/procps/nmeter.c
@@ -275,7 +275,7 @@ typedef struct a { \
 S_STAT(s_stat)
 S_STAT_END(s_stat)
 
-static void collect_literal(s_stat *s)
+static void collect_literal(s_stat *s ATTRIBUTE_UNUSED)
 {
 }
 
@@ -294,7 +294,7 @@ static s_stat* init_delay(const char *param)
         return NULL;
 }
 
-static s_stat* init_cr(const char *param)
+static s_stat* init_cr(const char *param ATTRIBUTE_UNUSED)
 {
         final_str = "\r";
         return (s_stat*)0;
@@ -436,7 +436,7 @@ static void collect_ctx(ctx_stat *s)
         scale(data[0] - old);
 }
 
-static s_stat* init_ctx(const char *param)
+static s_stat* init_ctx(const char *param ATTRIBUTE_UNUSED)
 {
         ctx_stat *s = xmalloc(sizeof(ctx_stat));
         s->collect = collect_ctx;
@@ -478,7 +478,7 @@ static void collect_blk(blk_stat *s)
         scale(data[1]*512);
 }
 
-static s_stat* init_blk(const char *param)
+static s_stat* init_blk(const char *param ATTRIBUTE_UNUSED)
 {
         blk_stat *s = xmalloc(sizeof(blk_stat));
         s->collect = collect_blk;
@@ -491,7 +491,7 @@ S_STAT(fork_stat)
         ullong old;
 S_STAT_END(fork_stat)
 
-static void collect_thread_nr(fork_stat *s)
+static void collect_thread_nr(fork_stat *s ATTRIBUTE_UNUSED)
 {
         ullong data[1];
 
@@ -660,7 +660,7 @@ static s_stat* init_mem(const char *param)
 S_STAT(swp_stat)
 S_STAT_END(swp_stat)
 
-static void collect_swp(swp_stat *s)
+static void collect_swp(swp_stat *s ATTRIBUTE_UNUSED)
 {
         ullong s_total[1];
         ullong s_free[1];
@@ -673,7 +673,7 @@ static void collect_swp(swp_stat *s)
         scale((s_total[0]-s_free[0]) << 10);
 }
 
-static s_stat* init_swp(const char *param)
+static s_stat* init_swp(const char *param ATTRIBUTE_UNUSED)
 {
         swp_stat *s = xmalloc(sizeof(swp_stat));
         s->collect = collect_swp;
@@ -684,7 +684,7 @@ static s_stat* init_swp(const char *param)
 S_STAT(fd_stat)
 S_STAT_END(fd_stat)
 
-static void collect_fd(fd_stat *s)
+static void collect_fd(fd_stat *s ATTRIBUTE_UNUSED)
 {
         ullong data[2];
 
@@ -696,7 +696,7 @@ static void collect_fd(fd_stat *s)
         scale(data[0] - data[1]);
 }
 
-static s_stat* init_fd(const char *param)
+static s_stat* init_fd(const char *param ATTRIBUTE_UNUSED)
 {
         fd_stat *s = xmalloc(sizeof(fd_stat));
         s->collect = collect_fd;
diff --git a/procps/pgrep.c b/procps/pgrep.c
index e4dfacb54..1ffc87db0 100644
--- a/procps/pgrep.c
+++ b/procps/pgrep.c
@@ -45,7 +45,7 @@ static void act(unsigned pid, char *cmd, int signo, unsigned opt)
 }
 
 int pgrep_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int pgrep_main(int argc, char **argv)
+int pgrep_main(int argc ATTRIBUTE_UNUSED, char **argv)
 {
         unsigned pid = getpid();
         int signo = SIGTERM;
diff --git a/procps/pidof.c b/procps/pidof.c
index 86d1957a6..46e646d6e 100644
--- a/procps/pidof.c
+++ b/procps/pidof.c
@@ -17,7 +17,7 @@ enum {
 };
 
 int pidof_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int pidof_main(int argc, char **argv)
+int pidof_main(int argc ATTRIBUTE_UNUSED, char **argv)
 {
         unsigned first = 1;
         unsigned opt;
diff --git a/procps/ps.c b/procps/ps.c
index f9d346ccf..647e03fc4 100644
--- a/procps/ps.c
+++ b/procps/ps.c
@@ -422,7 +422,7 @@ static void format_process(const procps_status_t *ps)
 }
 
 int ps_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int ps_main(int argc, char **argv)
+int ps_main(int argc ATTRIBUTE_UNUSED, char **argv)
 {
         procps_status_t *p;
         llist_t* opt_o = NULL;
diff --git a/procps/renice.c b/procps/renice.c
index ab0d3a1c4..d2dcf152c 100644
--- a/procps/renice.c
+++ b/procps/renice.c
@@ -27,7 +27,7 @@ void BUG_bad_PRIO_PGRP(void);
 void BUG_bad_PRIO_USER(void);
 
 int renice_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int renice_main(int argc, char **argv)
+int renice_main(int argc ATTRIBUTE_UNUSED, char **argv)
 {
         static const char Xetpriority_msg[] ALIGN1 = "%cetpriority";
 
diff --git a/procps/sysctl.c b/procps/sysctl.c
index 3a0af02d2..1995382ad 100644
--- a/procps/sysctl.c
+++ b/procps/sysctl.c
@@ -57,7 +57,7 @@ enum {
 };
 
 int sysctl_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int sysctl_main(int argc, char **argv)
+int sysctl_main(int argc ATTRIBUTE_UNUSED, char **argv)
 {
         int retval;
         int opt;
diff --git a/procps/top.c b/procps/top.c
index f4bb5094a..fdd7584c8 100644
--- a/procps/top.c
+++ b/procps/top.c
@@ -735,7 +735,7 @@ enum {
 };
 
 int top_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int top_main(int argc, char **argv)
+int top_main(int argc ATTRIBUTE_UNUSED, char **argv)
 {
         int count, lines, col;
         unsigned interval;
diff --git a/procps/uptime.c b/procps/uptime.c
index 07e8d607d..b729055a5 100644
--- a/procps/uptime.c
+++ b/procps/uptime.c
@@ -26,7 +26,7 @@
 
 
 int uptime_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int uptime_main(int argc, char **argv)
+int uptime_main(int argc ATTRIBUTE_UNUSED, char **argv ATTRIBUTE_UNUSED)
 {
         int updays, uphours, upminutes;
         struct sysinfo info;
diff --git a/procps/watch.c b/procps/watch.c
index b4955258e..5b774e808 100644
--- a/procps/watch.c
+++ b/procps/watch.c
@@ -24,7 +24,7 @@
 // (procps 3.x and procps 2.x are forks, not newer/older versions of the same)
 
 int watch_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int watch_main(int argc, char **argv)
+int watch_main(int argc ATTRIBUTE_UNUSED, char **argv)
 {
         unsigned opt;
         unsigned period = 2;