add -fvisibility=hidden to CC flags, mark XXX_main functions

EXTERNALLY_VISIBLE. 5% size reduction of libbusybox.so

4 files changed, 4 insertions, 4 deletions

diff --git a/networking/udhcp/dhcpc.c b/networking/udhcp/dhcpc.c
index 21b496c0b..e00379b2a 100644
--- a/networking/udhcp/dhcpc.c
+++ b/networking/udhcp/dhcpc.c
@@ -140,7 +140,7 @@ static uint8_t* alloc_dhcp_option(int code, const char *str, int extra)
 }
 
 
-int udhcpc_main(int argc, char **argv);
+int udhcpc_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
 int udhcpc_main(int argc, char **argv)
 {
         uint8_t *temp, *message;
diff --git a/networking/udhcp/dhcpd.c b/networking/udhcp/dhcpd.c
index 4343f1c0e..9679e086c 100644
--- a/networking/udhcp/dhcpd.c
+++ b/networking/udhcp/dhcpd.c
@@ -21,7 +21,7 @@ struct dhcpOfferedAddr *leases;
 /* struct server_config_t server_config is in bb_common_bufsiz1 */
 
 
-int udhcpd_main(int argc, char **argv);
+int udhcpd_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
 int udhcpd_main(int argc, char **argv)
 {
         fd_set rfds;
diff --git a/networking/udhcp/dhcprelay.c b/networking/udhcp/dhcprelay.c
index 91fcb151b..42378d602 100644
--- a/networking/udhcp/dhcprelay.c
+++ b/networking/udhcp/dhcprelay.c
@@ -279,7 +279,7 @@ static void dhcprelay_loop(int *fds, int num_sockets, int max_socket, char **cli
         }
 }
 
-int dhcprelay_main(int argc, char **argv);
+int dhcprelay_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
 int dhcprelay_main(int argc, char **argv)
 {
         int num_sockets, max_socket;
diff --git a/networking/udhcp/dumpleases.c b/networking/udhcp/dumpleases.c
index 3e931c0b5..218e6bc57 100644
--- a/networking/udhcp/dumpleases.c
+++ b/networking/udhcp/dumpleases.c
@@ -7,7 +7,7 @@
 #include "common.h"
 #include "dhcpd.h"
 
-int dumpleases_main(int argc, char **argv);
+int dumpleases_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
 int dumpleases_main(int argc, char **argv)
 {
         int fd;