Patch from Yann Morin to put BLKGETSIZE64 in platform.h had rather a lot of

fallout due to the #include <sys/mount.h>.  Removed that #include from various
applets and fixed up those that were unhappy when that #include was made
because they'd block copied stuff out of it.  (Sigh.)

include/platform.h

@@ -242,8 +242,11 @@ typedef unsigned long long int  uintmax_t;
 #define bb_setpgrp setpgrp()
 #endif
 
-#if defined(__linux__) && !defined(BLKGETSIZE64)
+#if defined(__linux__)
+#include <sys/mount.h>
+#if !defined(BLKGETSIZE64)
 #define BLKGETSIZE64 _IOR(0x12,114,size_t)
 #endif
+#endif
 
 #endif	/* platform.h	*/