uevent: placate gcc

How sizeof() can be an aliasing problem?

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

diff --git a/util-linux/uevent.c b/util-linux/uevent.c
index 252e8fb6411159e15daf99d0fad5e2938f099d56..7ff866ceca059a9ab86b82d6bcaf1e96f986a695 100644 (file)
--- a/util-linux/uevent.c
+++ b/util-linux/uevent.c
@@ -32,7 +32,10 @@
 #define env ((char **)bb_common_bufsiz1)
 #define INIT_G() do { setup_common_bufsiz(); } while (0)
 enum {
-       MAX_ENV = COMMON_BUFSIZE / sizeof(env[0]) - 1,
+       MAX_ENV = COMMON_BUFSIZE / sizeof(char*) - 1,
+       /* sizeof(env[0]) instead of sizeof(char*)
+        * makes gcc-6.3.0 emit "strict-aliasing" warning.
+        */
 };
 
 #ifndef SO_RCVBUFFORCE