Update to NSPR 4.9.5 Beta 2, part 2: actual changes.

mozilla/nsprpub/pr/include/md/_linux.cfg

Index: mozilla/nsprpub/pr/include/md/_linux.cfg
===================================================================
--- mozilla/nsprpub/pr/include/md/_linux.cfg	(revision 179237)
+++ mozilla/nsprpub/pr/include/md/_linux.cfg	(working copy)
@@ -21,6 +21,8 @@
 
 #ifdef __FreeBSD_kernel__
 #define PR_AF_INET6 28  /* same as AF_INET6 */
+#elif defined(__GNU__)
+#define PR_AF_INET6 26  /* same as AF_INET6 */
 #else
 #define PR_AF_INET6 10  /* same as AF_INET6 */
 #endif
@@ -210,8 +212,55 @@
 
 #elif defined(__x86_64__)
 
+#ifdef __ILP32__
+
 #define IS_LITTLE_ENDIAN 1
 #undef  IS_BIG_ENDIAN
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   5
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   4
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  4
+#define PR_ALIGN_OF_POINTER 4
+#define PR_ALIGN_OF_WORD    4
+
+#define PR_BYTES_PER_WORD_LOG2   2
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#else
+
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
 #define IS_64
 
 #define PR_BYTES_PER_BYTE   1
@@ -254,6 +303,8 @@
 #define PR_BYTES_PER_WORD_LOG2  3
 #define PR_BYTES_PER_DWORD_LOG2 3
 
+#endif
+
 #elif defined(__mc68000__)
 
 #undef  IS_LITTLE_ENDIAN