*: 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

7 files changed, 7 insertions, 7 deletions

diff --git a/miscutils/chat.c b/miscutils/chat.c
index 4f55738ec..50c5ad976 100644
--- a/miscutils/chat.c
+++ b/miscutils/chat.c
@@ -103,7 +103,7 @@ static size_t unescape(char *s, int *nocr)
 
 
 int chat_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int chat_main(int argc, char **argv)
+int chat_main(int argc ATTRIBUTE_UNUSED, char **argv)
 {
 // should we dump device output? to what fd? by default no.
 // this can be controlled later via ECHO {ON|OFF} chat directive
diff --git a/miscutils/crond.c b/miscutils/crond.c
index 6d4825e85..75555c874 100644
--- a/miscutils/crond.c
+++ b/miscutils/crond.c
@@ -158,7 +158,7 @@ static void crondlog(const char *ctl, ...)
 }
 
 int crond_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int crond_main(int ac, char **av)
+int crond_main(int ac ATTRIBUTE_UNUSED, char **av)
 {
         unsigned opt;
 
diff --git a/miscutils/crontab.c b/miscutils/crontab.c
index cb261ed18..94d69f032 100644
--- a/miscutils/crontab.c
+++ b/miscutils/crontab.c
@@ -88,7 +88,7 @@ static int open_as_user(const struct passwd *pas, const char *file)
 }
 
 int crontab_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int crontab_main(int argc, char **argv)
+int crontab_main(int argc ATTRIBUTE_UNUSED, char **argv)
 {
         const struct passwd *pas;
         const char *crontab_dir = CRONTABS;
diff --git a/miscutils/eject.c b/miscutils/eject.c
index 746a0184e..3d27ce545 100644
--- a/miscutils/eject.c
+++ b/miscutils/eject.c
@@ -79,7 +79,7 @@ static void eject_cdrom(const int fd, const unsigned long flags,
 }
 
 int eject_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int eject_main(int argc, char **argv)
+int eject_main(int argc ATTRIBUTE_UNUSED, char **argv)
 {
         unsigned long flags;
         const char *device;
diff --git a/miscutils/last.c b/miscutils/last.c
index fc5916ec2..f4d9a812e 100644
--- a/miscutils/last.c
+++ b/miscutils/last.c
@@ -27,7 +27,7 @@
 #endif
 
 int last_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int last_main(int argc, char **argv)
+int last_main(int argc, char **argv ATTRIBUTE_UNUSED)
 {
         struct utmp ut;
         int n, file = STDIN_FILENO;
diff --git a/miscutils/microcom.c b/miscutils/microcom.c
index 5219335a6..5ce430a03 100644
--- a/miscutils/microcom.c
+++ b/miscutils/microcom.c
@@ -41,7 +41,7 @@ static int xset1(int fd, struct termios *tio, const char *device)
 }
 
 int microcom_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int microcom_main(int argc, char **argv)
+int microcom_main(int argc ATTRIBUTE_UNUSED, char **argv)
 {
         int sfd;
         int nfd;
diff --git a/miscutils/strings.c b/miscutils/strings.c
index d75beccea..57a2c0a17 100644
--- a/miscutils/strings.c
+++ b/miscutils/strings.c
@@ -17,7 +17,7 @@
 #define SIZE                    8
 
 int strings_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int strings_main(int argc, char **argv)
+int strings_main(int argc ATTRIBUTE_UNUSED, char **argv)
 {
         int n, c, status = EXIT_SUCCESS;
         unsigned opt;