Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

This picks the following commits (most recent on top):

   e17d874 README: update for the new code base
   d391e62 added 64-bit example/test
   670b5e8 Makefile: support 64-bit option; add div64.c
   c2384cd vsprintf-full: offer 64-bit printing as an option
   220b19e vsprintf-full: simplify a little
   526daa6 vsprintf-full: remove unsed code for %p printing
   1a28825 vsprintf-full: prevent a warning when a pointer is 16 bits
Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

This fixes a bug with negative hex numbers (that must
be printed as unsigned hex, without the minux sign).
Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

This comes from git://gitorious.org/rubi/pp-printf.git .
This commit just copies it over, without enabling it for compilation.
Signed-off-by: Alessandro Rubini <rubini@gnudd.com>