C99 code in utf8proc.h

The introduction of utf8proc in libsvn_subr has brought this code in
utf8proc.h:

#ifdef _MSC_VER
typedef signed char int8_t;
typedef unsigned char uint8_t;
typedef short int16_t;
typedef unsigned short uint16_t;
typedef int int32_t;
#ifdef _WIN64
#define ssize_t __int64
#else
#define ssize_t int
#endif
typedef unsigned char bool;
enum {false, true};
#else
#include <stdbool.h>
#include <inttypes.h>
#endif

stdbool.h and inttypes.h are from C99 and are not part of C89 so a
strictly conforming C89 compiler rejects this code. If we were to use
the Windows code, typdef and enum, on all platforms we could remove the
C99 code. We could relax our C89 requirements but it seems a bit silly
to do it for something as trivial as this.

-- 
Philip Martin | Subversion Committer
WANdisco // *Non-Stop Data*