several *.c files:

move 'extern environ' up to the location of #includes

editors/awk.c

@@ -10,6 +10,7 @@
 #include "busybox.h"
 #include "xregex.h"
 #include <math.h>
+extern char **environ;
 
 /* This is a NOEXEC applet. Be very careful! */
 
@@ -393,8 +394,6 @@ enum { NPRIMES = sizeof(PRIMES) / sizeof(unsigned) };
 
 /* globals */
 
-extern char **environ;
-
 static var * V[_intvarcount_];
 static chain beginseq, mainseq, endseq, *seq;
 static int nextrec, nextfile;