Fixes for the latest MSVS.

- ssize_t
Since Windows does not have ssize_t, we need to include BaseTsd.h and
use SSIZE_t instead.

- include algorithm
MSVS 2013 requests developers to include algorithm when they use
std::min.

By yyanagisawa



git-svn-id: https://google-glog.googlecode.com/svn/trunk@143 eb4d4688-79bd-11dd-afb4-1d65580434c0

src/logging.cc

@@ -31,6 +31,7 @@
 
 #include "utilities.h"
 
+#include <algorithm>
 #include <assert.h>
 #include <iomanip>
 #include <string>
@@ -180,6 +181,10 @@ GLOG_DEFINE_string(log_backtrace_at, "",
 #define PATH_SEPARATOR '/'
 
 #ifndef HAVE_PREAD
+#if defined(OS_WINDOWS)
+#include <BaseTsd.h>
+#define ssize_t SSIZE_T
+#endif
 static ssize_t pread(int fd, void* buf, size_t count, off_t offset) {
   off_t orig_offset = lseek(fd, 0, SEEK_CUR);
   if (orig_offset == (off_t)-1)