bits/stat.h: Declare st_mtim if defined(__USE_XOPEN2K8), everywhere

While building software that sets _POSIX_C_SOURCE=200809L and uses
stat.st_mtim for ARM, it was noticed that st_mtim was not defined.

This seems to be because common/bits/stat.h was picked up, which does
not take __USE_XOPEN2K8 as a reason to enable st_mtim and related
fields. This appears to be an oversight, and porting the check from
common-generic/bits/stat.h to other architectures does indeed fix the
build issue.

This patch is based on commit 50bd6d06e ("Fix memory corruption due to
struct stat field").

Signed-off-by: J. Neuschäfer <j.neuschaefer@gmx.net>

libc/sysdeps/linux/alpha/bits/stat.h

@@ -40,7 +40,7 @@
 
    Use neat tidy anonymous unions and structures when possible.  */
 
-#ifdef __USE_MISC
+#if defined(__USE_MISC) || defined(__USE_XOPEN2K8)
 # if __GNUC_PREREQ(3,3)
 #  define __ST_TIME(X)				\
 	__extension__ union {			\

libc/sysdeps/linux/common/bits/stat.h

@@ -61,7 +61,7 @@ struct stat
 #else
     __blkcnt64_t st_blocks;		/* Number 512-byte blocks allocated. */
 #endif
-#ifdef __USE_MISC
+#if defined(__USE_MISC) || defined(__USE_XOPEN2K8)
     /* Nanosecond resolution timestamps are stored in a format
        equivalent to 'struct timespec'.  This is the type used
        whenever possible but the Unix namespace rules do not allow the
@@ -107,7 +107,7 @@ struct stat64
     __blksize_t st_blksize;		/* Optimal block size for I/O.  */
 
     __blkcnt64_t st_blocks;		/* Number 512-byte blocks allocated. */
-#ifdef __USE_MISC
+#if defined(__USE_MISC) || defined(__USE_XOPEN2K8)
     /* Nanosecond resolution timestamps are stored in a format
        equivalent to 'struct timespec'.  This is the type used
        whenever possible but the Unix namespace rules do not allow the

libc/sysdeps/linux/frv/bits/stat.h

@@ -70,7 +70,7 @@ struct stat
     __blkcnt64_t st_blocks;		/* Number 512-byte blocks allocated. */
 #endif
 
-#ifdef __USE_MISC
+#if defined(__USE_MISC) || defined(__USE_XOPEN2K8)
     /* Nanosecond resolution timestamps are stored in a format
        equivalent to 'struct timespec'.  This is the type used
        whenever possible but the Unix namespace rules do not allow the
@@ -117,7 +117,7 @@ struct stat64
     __blksize_t st_blksize;		/* Optimal block size for I/O.  */
 
     __blkcnt64_t st_blocks;		/* Number 512-byte blocks allocated. */
-#ifdef __USE_MISC
+#if defined(__USE_MISC) || defined(__USE_XOPEN2K8)
     /* Nanosecond resolution timestamps are stored in a format
        equivalent to 'struct timespec'.  This is the type used
        whenever possible but the Unix namespace rules do not allow the

libc/sysdeps/linux/ia64/bits/stat.h

@@ -38,7 +38,7 @@ struct stat
     int pad0;
     __dev_t st_rdev;		/* Device number, if device.  */
     __off_t st_size;		/* Size of file, in bytes.  */
-#ifdef __USE_MISC
+#if defined(__USE_MISC) || defined(__USE_XOPEN2K8)
     /* Nanosecond resolution timestamps are stored in a format
        equivalent to 'struct timespec'.  This is the type used
        whenever possible but the Unix namespace rules do not allow the
@@ -77,7 +77,7 @@ struct stat64
     int pad0;
     __dev_t st_rdev;		/* Device number, if device.  */
     __off_t st_size;		/* Size of file, in bytes.  */
-#ifdef __USE_MISC
+#if defined(__USE_MISC) || defined(__USE_XOPEN2K8)
     /* Nanosecond resolution timestamps are stored in a format
        equivalent to 'struct timespec'.  This is the type used
        whenever possible but the Unix namespace rules do not allow the

libc/sysdeps/linux/m68k/bits/stat.h

@@ -60,7 +60,7 @@ struct stat
 #else
     __blkcnt64_t st_blocks;		/* Number 512-byte blocks allocated. */
 #endif
-#ifdef __USE_MISC
+#if defined(__USE_MISC) || defined(__USE_XOPEN2K8)
     /* Nanosecond resolution timestamps are stored in a format
        equivalent to 'struct timespec'.  This is the type used
        whenever possible but the Unix namespace rules do not allow the
@@ -106,7 +106,7 @@ struct stat64
     __blksize_t st_blksize;		/* Optimal block size for I/O.  */
 
     __blkcnt64_t st_blocks;		/* Number 512-byte blocks allocated. */
-#ifdef __USE_MISC
+#if defined(__USE_MISC) || defined(__USE_XOPEN2K8)
     /* Nanosecond resolution timestamps are stored in a format
        equivalent to 'struct timespec'.  This is the type used
        whenever possible but the Unix namespace rules do not allow the

libc/sysdeps/linux/mips/bits/stat.h

@@ -60,7 +60,7 @@ struct stat
     long int st_pad2[2];
     __off64_t st_size;		/* Size of file, in bytes.  */
 #endif
-#ifdef __USE_MISC
+#if defined(__USE_MISC) || defined(__USE_XOPEN2K8)
     /* Nanosecond resolution timestamps are stored in a format
        equivalent to 'struct timespec'.  This is the type used
        whenever possible but the Unix namespace rules do not allow the
@@ -103,7 +103,7 @@ struct stat {
     unsigned int st_rdev;	/* Device number, if device.  */
     int st_pad2[3];
     __off_t st_size;		/* Size of file, in bytes.  */
-#ifdef __USE_MISC
+#if defined(__USE_MISC) || defined(__USE_XOPEN2K8)
     /* Nanosecond resolution timestamps are stored in a format
        equivalent to 'struct timespec'.  This is the type used
        whenever possible but the Unix namespace rules do not allow the

libc/sysdeps/linux/nds32/bits/stat.h

@@ -64,7 +64,7 @@ struct stat
 #else
     __blkcnt64_t st_blocks;		/* Number 512-byte blocks allocated. */
 #endif
-#ifdef __USE_MISC
+#if defined(__USE_MISC) || defined(__USE_XOPEN2K8)
     /* Nanosecond resolution timestamps are stored in a format
        equivalent to 'struct timespec'.  This is the type used
        whenever possible but the Unix namespace rules do not allow the
@@ -110,7 +110,7 @@ struct stat64
     __blksize_t st_blksize;		/* Optimal block size for I/O.  */
 
     __blkcnt64_t st_blocks;		/* Number 512-byte blocks allocated. */
-#ifdef __USE_MISC
+#if defined(__USE_MISC) || defined(__USE_XOPEN2K8)
     /* Nanosecond resolution timestamps are stored in a format
        equivalent to 'struct timespec'.  This is the type used
        whenever possible but the Unix namespace rules do not allow the

libc/sysdeps/linux/powerpc/bits/stat.h

@@ -59,7 +59,7 @@ struct stat
 # else
     __blkcnt64_t st_blocks;		/* Number 512-byte blocks allocated. */
 # endif
-#ifdef __USE_MISC
+#if defined(__USE_MISC) || defined(__USE_XOPEN2K8)
     /* Nanosecond resolution timestamps are stored in a format
        equivalent to 'struct timespec'.  This is the type used
        whenever possible but the Unix namespace rules do not allow the
@@ -99,7 +99,7 @@ struct stat64
     __off64_t st_size;			/* Size of file, in bytes.  */
     __blksize_t st_blksize;		/* Optimal block size for I/O.  */
     __blkcnt64_t st_blocks;		/* Number 512-byte blocks allocated. */
-#ifdef __USE_MISC
+#if defined(__USE_MISC) || defined(__USE_XOPEN2K8)
     /* Nanosecond resolution timestamps are stored in a format
        equivalent to 'struct timespec'.  This is the type used
        whenever possible but the Unix namespace rules do not allow the