Author: Colin Watson <cjwatson@ubuntu.com>
Description:
 Allow boot entry to start with label instead of menu_label.
 .
 menu_ptr->menu_label is human-readable (perhaps even translatable!) text if
 the MENU LABEL command is used, which isn't very convenient at the start of
 a boot entry.  Allow the entry to start with menu_ptr->label (an
 identifier) as an alternative.

diff -Naurp syslinux.orig/com32/gfxboot/gfxboot.c syslinux/com32/gfxboot/gfxboot.c
--- syslinux.orig/com32/gfxboot/gfxboot.c
+++ syslinux/com32/gfxboot/gfxboot.c
@@ -810,7 +810,7 @@ void boot(int index)
 {
   char *arg, *alt_kernel;
   menu_t *menu_ptr;
-  int i, label_len;
+  int i, label_len, menu_label_len;
   unsigned ipapp;
   const struct syslinux_ipappend_strings *ipappend;
   char *gfxboot_cwd = (char *) gfx_config.gfxboot_cwd;
@@ -828,18 +828,22 @@ void boot(int index)
   if(!menu_ptr || !menu_ptr->menu_label) return;
 
   arg = skipspace(cmdline);
-  label_len = strlen(menu_ptr->menu_label);
+  label_len = strlen(menu_ptr->label);
+  menu_label_len = strlen(menu_ptr->menu_label);
 
   // if it does not start with label string, assume first word is kernel name
-  if(strncmp(arg, menu_ptr->menu_label, label_len)) {
+  if(!strncmp(arg, menu_ptr->label, label_len)) {
+    arg += label_len;
+  }
+  else if(!strncmp(arg, menu_ptr->menu_label, menu_label_len)) {
+    arg += menu_label_len;
+  }
+  else {
     alt_kernel = arg;
     arg = skip_nonspaces(arg);
     if(*arg) *arg++ = 0;
     if(*alt_kernel) menu_ptr->alt_kernel = alt_kernel;
   }
-  else {
-    arg += label_len;
-  }
 
   arg = skipspace(arg);