Update CMake build configuration

CMakeLists.txt

@@ -0,0 +1,69 @@
+# [email protected]
+
+cmake_minimum_required(VERSION 3.12)
+
+project(PRT-IO-Library)
+
+# We can place facility-specific Find<BlahBlah>.cmake files in this subdirectory. Mostly used
+# to specify package locations on Windows builds since there isn't a known place to look.
+# set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${PROJECT_SOURCE_DIR}/Modules/")
+
+if(USE_HOUDINI)
+  find_package(HDK REQUIRED)
+  include_directories(${HDK_INCLUDE_DIR})
+  link_directories($ENV{HFS}/custom/houdini/dsolib)
+else()
+  find_package(IlmBase REQUIRED CONFIG)
+  find_package(ZLIB)
+endif()
+
+include_directories(.)
+# INCLUDE_DIRECTORIES ( ${ILMBASE_INCLUDE_DIRS} )
+# INCLUDE_DIRECTORIES ( ${ZLIB_INCLUDE_DIRS} )
+
+if(USE_HOUDINI)
+  if(MSVC)
+	set(ZLIB_LIBRARY zdll)
+  else()
+	set(ZLIB_LIBRARY z)
+  endif()
+  set(REQUIRED_LINK_LIBRARIES
+    Half
+    ${ZLIB_LIBRARY}
+    )
+else()
+  set(REQUIRED_LINK_LIBRARIES
+    IlmBase::IlmBaseConfig
+    IlmBase::Half
+    ${ZLIB_LIBRARY}
+    )
+endif()
+
+if ( MSVC )
+  if(USE_HOUDINI)
+	add_definitions(-DHALF_EXPORTS -DOPENEXR_DLL)
+  endif()
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /EHsc /Zi")
+  set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /DEBUG")
+endif()
+
+add_executable(example example.cpp)
+target_link_libraries(example
+  ${REQUIRED_LINK_LIBRARIES}
+)
+
+add_executable(example_layout example_layout.cpp)
+target_link_libraries(example_layout
+  ${REQUIRED_LINK_LIBRARIES}
+)
+
+add_executable(example_metadata example_metadata.cpp)
+target_link_libraries(example_metadata
+  ${REQUIRED_LINK_LIBRARIES}
+)
+
+install(DIRECTORY
+  prtio
+  DESTINATION
+  include
+)