refactor headers, especially alltypes.h, and improve C++ ABI compat

the arch-specific bits/alltypes.h.sh has been replaced with a generic
alltypes.h.in and minimal arch-specific bits/alltypes.h.in.

this commit is intended to have no functional changes except:
- exposing additional symbols that POSIX allows but does not require
- changing the C++ name mangling for some types
- fixing the signedness of blksize_t on powerpc (POSIX requires signed)
- fixing the limit macros for sig_atomic_t on x86_64
- making dev_t an unsigned type (ABI matching goal, and more logical)

in addition, some types that were wrongly defined with long on 32-bit
archs were changed to int, and vice versa; this change is
non-functional except for the possibility of making pointer types
mismatch, and only affects programs that were using them incorrectly,
and only at build-time, not runtime.

the following changes were made in the interest of moving
non-arch-specific types out of the alltypes system and into the
headers they're associated with, and also will tend to improve
application compatibility:
- netdb.h now includes netinet/in.h (for socklen_t and uint32_t)
- netinet/in.h now includes sys/socket.h and inttypes.h
- sys/resource.h now includes sys/time.h (for struct timeval)
- sys/wait.h now includes signal.h (for siginfo_t)
- langinfo.h now includes nl_types.h (for nl_item)

for the types in stdint.h:
- types which are of no interest to other headers were moved out of
  the alltypes system.
- fast types for 8- and 64-bit are hard-coded (at least for now); only
  the 16- and 32-bit ones have reason to vary by arch.

and the following types have been changed for C++ ABI purposes;
- mbstate_t now has a struct tag, __mbstate_t
- FILE's struct tag has been changed to _IO_FILE
- DIR's struct tag has been changed to __dirstream
- locale_t's struct tag has been changed to __locale_struct
- pthread_t is defined as unsigned long in C++ mode only
- fpos_t now has a struct tag, _G_fpos64_t
- fsid_t's struct tag has been changed to __fsid_t
- idtype_t has been made an enum type (also required by POSIX)
- nl_catd has been changed from long to void *
- siginfo_t's struct tag has been removed
- sigset_t's has been given a struct tag, __sigset_t
- stack_t has been given a struct tag, sigaltstack
- suseconds_t has been changed to long on 32-bit archs
- [u]intptr_t have been changed from long to int rank on 32-bit archs
- dev_t has been made unsigned

summary of tests that have been performed against these changes:
- nsz's libc-test (diff -u before and after)
- C++ ABI check symbol dump (diff -u before, after, glibc)
- grepped for __NEED, made sure types needed are still in alltypes
- built gcc 3.4.6

1 files changed, 18 insertions, 10 deletions

diff --git a/include/stdint.h b/include/stdint.h
index 76284048..a783ad96 100644
--- a/include/stdint.h
+++ b/include/stdint.h
@@ -11,16 +11,6 @@
 #define __NEED_uint32_t
 #define __NEED_uint64_t
 
-#define __NEED_int_fast8_t
-#define __NEED_int_fast16_t
-#define __NEED_int_fast32_t
-#define __NEED_int_fast64_t
-
-#define __NEED_uint_fast8_t
-#define __NEED_uint_fast16_t
-#define __NEED_uint_fast32_t
-#define __NEED_uint_fast64_t
-
 #define __NEED_intptr_t
 #define __NEED_uintptr_t
 
@@ -29,11 +19,17 @@
 
 #include <bits/alltypes.h>
 
+typedef int8_t int_fast8_t;
+typedef int64_t int_fast64_t;
+
 typedef int8_t  int_least8_t;
 typedef int16_t int_least16_t;
 typedef int32_t int_least32_t;
 typedef int64_t int_least64_t;
 
+typedef uint8_t uint_fast8_t;
+typedef uint64_t uint_fast64_t;
+
 typedef uint8_t  uint_least8_t;
 typedef uint16_t uint_least16_t;
 typedef uint32_t uint_least32_t;
@@ -54,16 +50,25 @@ typedef uint64_t uint_least64_t;
 #define UINT32_MAX (0xffffffff)
 #define UINT64_MAX (0xffffffffffffffff)
 
+#define INT_FAST8_MIN   INT8_MIN
+#define INT_FAST64_MIN  INT64_MIN
+
 #define INT_LEAST8_MIN   INT8_MIN
 #define INT_LEAST16_MIN  INT16_MIN
 #define INT_LEAST32_MIN  INT32_MIN
 #define INT_LEAST64_MIN  INT64_MIN
 
+#define INT_FAST8_MAX   INT8_MAX
+#define INT_FAST64_MAX  INT64_MAX
+
 #define INT_LEAST8_MAX   INT8_MAX
 #define INT_LEAST16_MAX  INT16_MAX
 #define INT_LEAST32_MAX  INT32_MAX
 #define INT_LEAST64_MAX  INT64_MAX
 
+#define UINT_FAST8_MAX  UINT8_MAX
+#define UINT_FAST64_MAX UINT64_MAX
+
 #define UINT_LEAST8_MAX  UINT8_MAX
 #define UINT_LEAST16_MAX UINT16_MAX
 #define UINT_LEAST32_MAX UINT32_MAX
@@ -84,6 +89,9 @@ typedef uint64_t uint_least64_t;
 #define WCHAR_MIN (-1-0x7fffffff+L'\0')
 #endif
 
+#define SIG_ATOMIC_MIN  INT32_MIN
+#define SIG_ATOMIC_MAX  INT32_MAX
+
 #include <bits/stdint.h>
 
 #define INT8_C(c)  c