message: Let's use '_WIN32', consistently
diff: @@ -42,7 +42,7 @@ typedef int ssize_t;
  #include <stdint.h>
  -#ifdef WIN32
  +#ifdef _WIN32
  # ifdef ospray_common_EXPORTS
  # define OSPCOMMON_INTERFACE __declspec(dllexport)
  # else
  @@ -87,7 +87,7 @@ namespace ospcommon {
  OSPCOMMON_INTERFACE void *getSymbol(const std::string &name);
  -#ifdef __WIN32__
  +#ifdef _WIN32
  # define osp_snprintf sprintf_s
  #else
  # define osp_snprintf snprintf
  