Fix MinGW-w64 compatibility: add compiler-specific library handling

Author: JohnsterID

CMakeLists.txt

@@ -1,16 +1,27 @@
 add_library(d3d8lib INTERFACE)
-target_link_libraries(d3d8lib INTERFACE d3d8 d3dx8 dinput8 dxguid)
 
-if(MSVC AND CMAKE_CXX_COMPILER_VERSION VERSION_GREATER "12.0.8804")
-    target_link_libraries(d3d8lib INTERFACE legacy_stdio_definitions)
-	target_link_options(d3d8lib INTERFACE /SAFESEH:NO)
+if(MSVC)
+    # Use bundled MSVC-compiled .lib files
+    target_link_libraries(d3d8lib INTERFACE d3d8 d3dx8 dinput8 dxguid)
+    target_link_directories(d3d8lib BEFORE INTERFACE ${CMAKE_CURRENT_SOURCE_DIR})
+    target_link_options(d3d8lib INTERFACE /NODEFAULTLIB:libci.lib)
+    
+    if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER "12.0.8804")
+        target_link_libraries(d3d8lib INTERFACE legacy_stdio_definitions)
+        target_link_options(d3d8lib INTERFACE /SAFESEH:NO)
+    endif()
+elseif(MINGW)
+    # MinGW-w64 DirectX 8 support varies by architecture:
+    # i686 (32-bit): libd3d8.a + libd3dx8d.a (debug only, no release version)
+    # x86_64 (64-bit): libd3d8thk.a only (no libd3dx8 libraries at all)
+    target_link_libraries(d3d8lib INTERFACE d3d8 d3dx8d dinput8 dxguid)
+    # ddraw.h header is part of current windows SDK, so can't include it in modern builds
+    target_include_directories(d3d8lib INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/extra)
 else()
-	# ddraw.h header is part of current windows SDK, so can't include it in modern builds
-	target_include_directories(d3d8lib INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/extra)
+    # Other compilers - use system libraries
+    target_link_libraries(d3d8lib INTERFACE d3d8 d3dx8 dinput8 dxguid)
+    target_include_directories(d3d8lib INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/extra)
 endif()
 
 target_compile_definitions(d3d8lib INTERFACE -DBUILD_WITH_D3D8)
-
-target_link_directories(d3d8lib BEFORE INTERFACE ${CMAKE_CURRENT_SOURCE_DIR})
-target_include_directories(d3d8lib INTERFACE ${CMAKE_CURRENT_SOURCE_DIR})
-target_link_options(d3d8lib INTERFACE /NODEFAULTLIB:libci.lib)
+target_include_directories(d3d8lib INTERFACE ${CMAKE_CURRENT_SOURCE_DIR})