main/arpon: fix build with gcc8 (useful -Werror)

gcc8 reports one -Werror=pointer-compare case with the actual problem and
several harmless -Werror=implicit-fallthrough so fix everything with a patch.

1 files changed, 37 insertions, 0 deletions

diff --git a/main/arpon/arpon-gcc8.patch b/main/arpon/arpon-gcc8.patch
new file mode 100644
index 0000000000..87c4cf8843
--- /dev/null
+++ b/main/arpon/arpon-gcc8.patch
@@ -0,0 +1,37 @@
+--- a/src/opt.c
++++ b/src/opt.c
+@@ -222,6 +222,7 @@
+                 /* Print the version command option, cleanup and exit. */
+                 std_version();
+                 exit_cleanup(true);
++		break;
+ 
+             case 'h':
+                 MSG_DEBUG("-h or --help command option");
+@@ -229,6 +230,7 @@
+                 /* Print the help screen command option, cleanup and exit. */
+                 std_help();
+                 exit_cleanup(true);
++		break;
+ 
+             case '?':
+             case ':':
+@@ -285,7 +287,7 @@
+     }
+ 
+     /* Re-initialize the interface name command option to no interface? */
+-    if (opt->interface != '\0')
++    if (*opt->interface != '\0')
+         memset(opt->interface, '\0', (size_t)IF_NAMESIZE);
+ 
+     /* Set the value of the interface name command option. */
+--- a/src/sig.c
++++ b/src/sig.c
+@@ -204,6 +204,7 @@
+             case SIGINT:
+                 /* Remove ^C symbol from the output terminal. */
+                 printf("\r");
++		/* fallthrough */
+ 
+             case SIGTERM:
+                 MSG_DEBUG("Caught %s (%d)..", SIG_ITOA(sig), sig);