gzip: Improve ptr_to_globals trick, allowing gcc
to optimize better. -480 bytes.
diff --git a/libbb/messages.c b/libbb/messages.c
index 1a10a8c..12a165a 100644
--- a/libbb/messages.c
+++ b/libbb/messages.c
@@ -57,4 +57,5 @@
 char bb_common_bufsiz1[BUFSIZ+1];
 
 struct globals;
-struct globals *ptr_to_globals;
+/* Make it reside in R/W memory: */
+struct globals *const ptr_to_globals __attribute__ ((section (".data")));