Fix Windows build

Author: SydMontague

CMakeLists.txt

@@ -11,6 +11,7 @@ set(CMAKE_WARN_DEPRECATED FALSE CACHE BOOL "" FORCE)
 #tinygltf
 set(TINYGLTF_HEADER_ONLY ON CACHE INTERNAL "" FORCE)
 set(TINYGLTF_INSTALL OFF CACHE INTERNAL "" FORCE)
+set(TINYGLTF_BUILD_LOADER_EXAMPLE OFF CACHE INTERNAL "" FORCE)
 
 CPMAddPackage(
   NAME tinygltf
@@ -27,7 +28,17 @@ CPMAddPackage(
   GITHUB_REPOSITORY "madler/zlib"
 )
 
+# pass zlib information to libpng
+set(ZLIB_LIBRARIES zlibstatic)
+set(ZLIB_INCLUDE_DIRS ${zlib_SOURCE_DIR} ${zlib_BINARY_DIR})
+
 # libpng
+set(PNG_TESTS OFF)
+set(PNG_EXECUTABLES OFF)
+set(PNG_SHARED OFF)
+set(PNG_FRAMEWORK OFF)
+set(PNG_BUILD_ZLIB ON)
+
 CPMAddPackage(
   NAME libpng
   VERSION 1.6.40
@@ -51,12 +62,10 @@ set(SOURCE_FILES ${SOURCE_FILES} "src/main.cpp" "src/TIM.cpp" "src/Animation.cpp
 add_executable(DW1ModelConverter ${SOURCE_FILES})
 
 set_target_properties(DW1ModelConverter PROPERTIES CXX_STANDARD 20)
-target_include_directories(DW1ModelConverter PRIVATE ${cimg_SOURCE_DIR})
+target_include_directories(DW1ModelConverter PRIVATE ${cimg_SOURCE_DIR} ${libpng_SOURCE_DIR} ${libpng_BINARY_DIR})
 target_link_libraries(DW1ModelConverter PRIVATE png_static tinygltf)
 
 target_compile_definitions(DW1ModelConverter PRIVATE cimg_display=0)
 target_compile_definitions(DW1ModelConverter PRIVATE cimg_use_png)
 
-message("${PROJECT_SOURCE_DIR}")
-
-install(TARGETS DW1ModelConverter)# RUNTIME DESTINATION ${PROJECT_SOURCE_DIR}/install)
+install(TARGETS DW1ModelConverter)