Add a new *scanf implementation, includeing the *wscanf functions.

  Should be standards compliant and with several optional features,
  including support for hexadecimal float notation, locale awareness,
  glibc-like locale-specific digit grouping with the `'' flag, and
  positional arg support.  I tested it pretty well (finding several
  bugs in glibc's scanf in the process), but it is brand new so be
  aware.

The *wprintf functions now support floating point output.  Also, a
  couple of bugs were squashed.  Finally, %a/%A conversions are
  now implemented.

Implement the glibc xlocale interface for thread-specific locale
  support.  Also add the various *_l(args, locale_t loc_arg) funcs.

  NOTE!!!  setlocale() is NOT threadsafe!  NOTE!!!

The strto{floating point} conversion functions are now locale aware.
  The also now support hexadecimal floating point notation.

Add the wcsto{floating point} conversion functions.

Fix a bug in mktime() related to dst.  Note that unlike glibc's mktime,
  uClibc's version always normalizes the struct tm before attempting
  to determine the correct dst setting if tm_isdst == -1 on entry.

Add a stub version of the libintl functions.  (untested)

Fixed a known memory leak in setlocale() related to the collation data.

Add lots of new config options (which Erik agreed to sort out :-),
  including finally exposing some of the stripped down stdio configs.
  Be careful with those though, as they haven't been tested in a
  long time.


(temporary) GOTCHAs...

The ctype functions are currently incorrect for 8-bit locales.  They
  will be fixed shortly.

The ctype functions are now table-based, resulting in larger staticly
  linked binaries.  I'll be adding an option to use the old approach
  in the stub locale configuration.

1 files changed, 16 insertions, 0 deletions

diff --git a/include/stdio.h b/include/stdio.h
index 3e27707ae..b11394da7 100644
--- a/include/stdio.h
+++ b/include/stdio.h
@@ -355,12 +355,19 @@ extern int getchar (void) __THROW;
 
 /* The C standard explicitly says this is a macro, so we always do the
    optimization for it.  */
+#ifdef __UCLIBC_HAS_THREADS__
+#define getc(_fp) (getc)(_fp)	/* SUSv3 says getc must be threadsafe. */
+#else  /* __UCLIBC_HAS_THREADS__ */
 #define getc(_fp) __GETC(_fp)
+#endif /* __UCLIBC_HAS_THREADS__ */
 
 #if defined __USE_POSIX || defined __USE_MISC
 /* These are defined in POSIX.1:1996.  */
 extern int getc_unlocked (FILE *__stream) __THROW;
 extern int getchar_unlocked (void) __THROW;
+
+/* SUSv3 allows getc_unlocked to be a macro */
+#define getc_unlocked(_fp) __GETC(_fp)
 #endif /* Use POSIX or MISC.  */
 
 #ifdef __USE_MISC
@@ -378,7 +385,11 @@ extern int putchar (int __c) __THROW;
 
 /* The C standard explicitly says this can be a macro,
    so we always do the optimization for it.  */
+#ifdef __UCLIBC_HAS_THREADS__
+#define putc(_ch, _fp) (putc)(_ch, _fp)	/* SUSv3 says putc must be threadsafe. */
+#else  /* __UCLIBC_HAS_THREADS__ */
 #define putc(_ch, _fp) __PUTC(_ch, _fp)
+#endif /* __UCLIBC_HAS_THREADS__ */
 
 #ifdef __USE_MISC
 /* Faster version when locking is not necessary.  */
@@ -389,6 +400,9 @@ extern int fputc_unlocked (int __c, FILE *__stream) __THROW;
 /* These are defined in POSIX.1:1996.  */
 extern int putc_unlocked (int __c, FILE *__stream) __THROW;
 extern int putchar_unlocked (int __c) __THROW;
+
+/* SUSv3 allows putc_unlocked to be a macro */
+#define putc_unlocked(_ch, _fp) __PUTC(_ch, _fp)
 #endif /* Use POSIX or MISC.  */
 
 
@@ -544,6 +558,7 @@ extern int ferror_unlocked (FILE *__stream) __THROW;
 /* Print a message describing the meaning of the value of errno.  */
 extern void perror (__const char *__s) __THROW;
 
+#ifdef __UCLIBC_HAS_SYS_ERRLIST__
 /* These variables normally should not be used directly.  The `strerror'
    function provides all the needed functionality.  */
 #ifdef	__USE_BSD
@@ -555,6 +570,7 @@ extern __const char *__const sys_errlist[];
 extern int _sys_nerr;
 extern __const char *__const _sys_errlist[];
 #endif
+#endif /* __UCLIBC_HAS_SYS_ERRLIST__ */
 
 
 #ifdef	__USE_POSIX