applet_tables: fix single applet build failure. Closes 4009

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 8 insertions, 1 deletions

diff --git a/applets/applet_tables.c b/applets/applet_tables.c
index 3859d7326..a47574737 100644
--- a/applets/applet_tables.c
+++ b/applets/applet_tables.c
@@ -80,8 +80,15 @@ int main(int argc, char **argv)
 
         printf("#define NUM_APPLETS %u\n", NUM_APPLETS);
         if (NUM_APPLETS == 1) {
+                char *dash_to_underscore, *p;
                 printf("#define SINGLE_APPLET_STR \"%s\"\n", applets[0].name);
-                printf("#define SINGLE_APPLET_MAIN %s_main\n", applets[0].name);
+                /* Example: "ether-wake" -> "ether_wake" */
+                p = dash_to_underscore = strdup(applets[0].name);
+                p--;
+                while (*++p)
+                        if (*p == '-')
+                                *p = '_';
+                printf("#define SINGLE_APPLET_MAIN %s_main\n", dash_to_underscore);
         }
         printf("\n");