xrSound: fix Windows linkage with eax.lib

Author: eagleivg

src/xrSound/CMakeLists.txt

@@ -20,7 +20,7 @@ list(REMOVE_ITEM ${PROJECT_NAME}__SOURCES "${CMAKE_CURRENT_SOURCE_DIR}/./MusicSt
 list(REMOVE_ITEM ${PROJECT_NAME}__INCLUDES "${CMAKE_CURRENT_SOURCE_DIR}/./xr_cda.h")
 list(REMOVE_ITEM ${PROJECT_NAME}__INCLUDES "${CMAKE_CURRENT_SOURCE_DIR}/./MusicStream.h")
 
-
+add_definitions(-DXRSOUND_EXPORTS -DdSINGLE -D_SECURE_SCL=0)
 add_library(${PROJECT_NAME} SHARED ${${PROJECT_NAME}__SOURCES} ${${PROJECT_NAME}__INCLUDES})
 
 set_target_properties(${PROJECT_NAME} PROPERTIES PREFIX "")

src/xrSound/guids.cpp

@@ -1,7 +1,7 @@
 #pragma hdrstop
 
 #define INITGUID
-#if defined(WINDOWS)
+#if defined(_WIN32)
 #include <dsound.h>
 #include <eax/eax.h>
 #endif