all_devices is an exported symbol so we cant declare it static

Fix by Pablo De Nápoli

http://bugs.gentoo.org/133936

--- svgalib-1.9.24/kernel/svgalib_helper/main.c
+++ svgalib-1.9.24/kernel/svgalib_helper/main.c
@@ -55,7 +55,7 @@
 #include "displaystart.h"
 
 int debug=0;
-static int all_devices=0;
+int all_devices=0;
 int num_devices=0;
 
 static char *sdev_id="svgalib_helper";