Robert P. Day removed 8 gazillion occurrences of "extern" on function
definitions.  (That should only be on prototypes.)
diff --git a/util-linux/fbset.c b/util-linux/fbset.c
index 49435c2..2e895be 100644
--- a/util-linux/fbset.c
+++ b/util-linux/fbset.c
@@ -332,7 +332,7 @@
 #ifdef STANDALONE
 int main(int argc, char **argv)
 #else
-extern int fbset_main(int argc, char **argv)
+int fbset_main(int argc, char **argv)
 #endif
 {
 	struct fb_var_screeninfo var, varset;