*: add optimization barrier to all "G trick" locations

diff --git a/networking/sendmail.c b/networking/sendmail.c
index 3a6078f..eb356dc 100644
--- a/networking/sendmail.c
+++ b/networking/sendmail.c
@@ -77,7 +77,7 @@
 #define xargs           (G.xargs     )
 #define fargs           (G.fargs     )
 #define INIT_G() do { \
-	PTR_TO_GLOBALS = xzalloc(sizeof(G)); \
+	SET_PTR_TO_GLOBALS(xzalloc(sizeof(G))); \
 	xargs[0] = "openssl"; \
 	xargs[1] = "s_client"; \
 	xargs[2] = "-quiet"; \