--- a/Resources/CMake/GoogleLogConfiguration.cmake	Fri Jul 25 11:47:22 2014 +0200
+++ b/Resources/CMake/GoogleLogConfiguration.cmake	Fri Jul 25 14:08:10 2014 +0200
@@ -83,8 +83,17 @@
       COMMAND patch port.cc ${ORTHANC_ROOT}/Resources/Patches/glog-port-cc.diff 
       WORKING_DIRECTORY ${GOOGLE_LOG_SOURCES_DIR}/src/windows
       )
+
+  else(${MSVC})
+    # https://code.google.com/p/google-glog/issues/detail?id=117
+    configure_file(
+      ${ORTHANC_ROOT}/Resources/Patches/glog-visual-studio-port.h
+      ${GOOGLE_LOG_SOURCES_DIR}/src/windows/port.h
+      COPYONLY)
+
   endif()
 
+
   if (${CMAKE_SYSTEM_NAME} STREQUAL "Linux" OR
       ${CMAKE_SYSTEM_NAME} STREQUAL "Darwin" OR
       ${CMAKE_SYSTEM_NAME} STREQUAL "kFreeBSD")

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Resources/Patches/glog-visual-studio-port.h	Fri Jul 25 14:08:10 2014 +0200
@@ -0,0 +1,172 @@
+/* Copyright (c) 2008, Google Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * 
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Craig Silverstein
+ * Copied from google-perftools and modified by Shinichiro Hamaji
+ *
+ * These are some portability typedefs and defines to make it a bit
+ * easier to compile this code under VC++.
+ *
+ * Several of these are taken from glib:
+ *    http://developer.gnome.org/doc/API/glib/glib-windows-compatability-functions.html
+ */
+
+#ifndef CTEMPLATE_WINDOWS_PORT_H_
+#define CTEMPLATE_WINDOWS_PORT_H_
+
+#include "config.h"
+
+#ifdef _WIN32
+
+#define WIN32_LEAN_AND_MEAN  /* We always want minimal includes */
+#include <windows.h>
+#include <winsock.h>         /* for gethostname */
+#include <io.h>              /* because we so often use open/close/etc */
+#include <direct.h>          /* for _getcwd() */
+#include <process.h>         /* for _getpid() */
+#include <stdio.h>           /* read in vsnprintf decl. before redifining it */
+#include <stdarg.h>          /* template_dictionary.cc uses va_copy */
+#include <string.h>          /* for _strnicmp(), strerror_s() */
+#include <time.h>            /* for localtime_s() */
+/* Note: the C++ #includes are all together at the bottom.  This file is
+ * used by both C and C++ code, so we put all the C++ together.
+ */
+
+/* 4244: otherwise we get problems when substracting two size_t's to an int
+ * 4251: it's complaining about a private struct I've chosen not to dllexport
+ * 4355: we use this in a constructor, but we do it safely
+ * 4715: for some reason VC++ stopped realizing you can't return after abort()
+ * 4800: we know we're casting ints/char*'s to bools, and we're ok with that
+ * 4996: Yes, we're ok using "unsafe" functions like fopen() and strerror()
+ */
+#pragma warning(disable:4244 4251 4355 4715 4800 4996)
+
+/* file I/O */
+#define PATH_MAX 1024
+#define access  _access
+#define getcwd  _getcwd
+#define open    _open
+#define read    _read
+#define write   _write
+#define lseek   _lseek
+#define close   _close
+#define popen   _popen
+#define pclose  _pclose
+#define R_OK    04           /* read-only (for access()) */
+#define S_ISDIR(m)  (((m) & _S_IFMT) == _S_IFDIR)
+#ifndef __MINGW32__
+enum { STDIN_FILENO = 0, STDOUT_FILENO = 1, STDERR_FILENO = 2 };
+#endif
+#define S_IRUSR S_IREAD
+#define S_IWUSR S_IWRITE
+
+/* Not quite as lightweight as a hard-link, but more than good enough for us. */
+#define link(oldpath, newpath)  CopyFileA(oldpath, newpath, false)
+
+#define strcasecmp   _stricmp
+#define strncasecmp  _strnicmp
+
+/* In windows-land, hash<> is called hash_compare<> (from xhash.h) */
+#if _MSC_VER < 1700
+#define hash  hash_compare
+#endif
+
+/* Sleep is in ms, on windows */
+#define sleep(secs)  Sleep((secs) * 1000)
+
+/* We can't just use _vsnprintf and _snprintf as drop-in-replacements,
+ * because they don't always NUL-terminate. :-(  We also can't use the
+ * name vsnprintf, since windows defines that (but not snprintf (!)).
+ */
+extern int snprintf(char *str, size_t size,
+                                       const char *format, ...);
+extern int safe_vsnprintf(char *str, size_t size,
+                          const char *format, va_list ap);
+#define vsnprintf(str, size, format, ap)  safe_vsnprintf(str, size, format, ap)
+#define va_copy(dst, src)  (dst) = (src)
+
+/* Windows doesn't support specifying the number of buckets as a
+ * hash_map constructor arg, so we leave this blank.
+ */
+#define CTEMPLATE_SMALL_HASHTABLE
+
+#define DEFAULT_TEMPLATE_ROOTDIR  ".."
+
+// ----------------------------------- SYSTEM/PROCESS
+typedef int pid_t;
+#define getpid  _getpid
+
+// ----------------------------------- THREADS
+typedef DWORD pthread_t;
+typedef DWORD pthread_key_t;
+typedef LONG pthread_once_t;
+enum { PTHREAD_ONCE_INIT = 0 };   // important that this be 0! for SpinLock
+#define pthread_self  GetCurrentThreadId
+#define pthread_equal(pthread_t_1, pthread_t_2)  ((pthread_t_1)==(pthread_t_2))
+
+#if defined(__MINGW32__)
+inline int localtime_s(tm * _tm, const time_t * time)
+{
+  tm * posix_local_time_struct = localtime(time);
+  if (posix_local_time_struct == NULL) 
+  {
+    return 1;
+  }
+
+  *_tm = *posix_local_time_struct;
+
+  return 0;
+}
+
+inline char* strerror_s(char* buf, size_t buflen, int errnum) 
+{
+  const char* str = strerror(errnum);
+  return strncpy(buf, str, buflen - 1);
+}
+#endif
+
+inline struct tm* localtime_r(const time_t* timep, struct tm* result) {
+  localtime_s(result, timep);
+  return result;
+}
+
+inline char* strerror_r(int errnum, char* buf, size_t buflen) {
+  strerror_s(buf, buflen, errnum);
+  return buf;
+}
+
+#ifndef __cplusplus
+/* I don't see how to get inlining for C code in MSVC.  Ah well. */
+#define inline
+#endif
+
+#endif  /* _WIN32 */
+
+#endif  /* CTEMPLATE_WINDOWS_PORT_H_ */