Add windowsXP cmake target

CMake/Platforms.cmake

@@ -1,7 +1,3 @@
-if(WIN32)
-  include(platforms/windows)
-endif()
-
 if(HAIKU)
   include(platforms/haiku)
 endif()
@@ -18,7 +14,7 @@ if(CMAKE_SYSTEM_NAME MATCHES "FreeBSD|OpenBSD|DragonFly|NetBSD")
 endif()
 
 set(TARGET_PLATFORM host CACHE STRING "Target platform")
-set_property(CACHE TARGET_PLATFORM PROPERTY STRINGS host retrofw rg99 rg350 gkd350h cpigamesh miyoo_mini)
+set_property(CACHE TARGET_PLATFORM PROPERTY STRINGS host retrofw rg99 rg350 gkd350h cpigamesh miyoo_mini windowsXP)
 if(TARGET_PLATFORM STREQUAL "retrofw")
   include(platforms/retrofw)
 elseif(TARGET_PLATFORM STREQUAL "rg99")
@@ -33,6 +29,10 @@ elseif(TARGET_PLATFORM STREQUAL "lepus")
   include(platforms/lepus)
 elseif(TARGET_PLATFORM STREQUAL "miyoo_mini")
   include(platforms/miyoo_mini)
+elseif(TARGET_PLATFORM STREQUAL "windowsXP")
+  include(platforms/windowsXP)
+elseif(WIN32)
+  include(platforms/windows)
 endif()
 
 if(NINTENDO_SWITCH)

CMake/platforms/windowsXP.cmake

@@ -0,0 +1,29 @@
+set(ASAN OFF)
+set(UBSAN OFF)
+set(DIST ON)
+
+set(DISABLE_ZERO_TIER ON)
+set(DISCORD_INTEGRATION OFF)
+set(DEVILUTIONX_SYSTEM_BZIP2 OFF)
+set(DEVILUTIONX_STATIC_LIBSODIUM ON)
+
+list(APPEND DEVILUTIONX_PLATFORM_LINK_LIBRARIES
+  find_steam_game
+  shlwapi
+  wsock32
+  ws2_32
+  wininet
+)
+
+add_definitions(-DWINVER=0x0501 -D_WIN32_WINDOWS=0x0501 -D_WIN32_WINNT=0x0501)
+
+if(CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
+  list(APPEND DEVILUTIONX_PLATFORM_COMPILE_OPTIONS "/W3" "/Zc:__cplusplus" "/utf-8")
+  list(APPEND DEVILUTIONX_PLATFORM_COMPILE_DEFINITIONS _CRT_SECURE_NO_WARNINGS)
+else()
+  list(APPEND DEVILUTIONX_PLATFORM_COMPILE_OPTIONS $<$<CONFIG:Debug>:-gstabs>)
+endif()
+
+if(MINGW_CROSS)
+  list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/mingw")
+endif()