Use macros for gcc attributes

* defs.h (error_msg, perror_msg, error_msg_and_die, perror_msg_and_die,
die_out_of_memory, printllval, printnum_int, printnum_long, tprintf):
Use ATTRIBUTE_* macros for gcc attributes.
* file.c (struct stat64): Likewise.
* statfs.c (struct compat_statfs64): Likewise.
* strace.c (die, exec_or_die, init): Likewise.
* linux/sparc/arch_sigreturn.c: Likewise.
* linux/ubi-user.h: Likewise.
diff --git a/statfs.c b/statfs.c
index 214e6b2..6373195 100644
--- a/statfs.c
+++ b/statfs.c
@@ -125,7 +125,7 @@
 	uint32_t f_spare[4];
 }
 #if defined AARCH64 || defined X86_64 || defined X32 || defined IA64
-  __attribute__ ((packed, aligned(4)))
+  ATTRIBUTE_PACKED ATTRIBUTE_ALIGNED(4)
 #endif
 ;
 #if defined AARCH64 || defined ARM