Use upstream CMake macros to find python (#616)

* cmake

* reformat

CMakeLists.txt

@@ -88,7 +88,6 @@ set(AIE_TOOLS_BINARY_DIR ${AIE_BINARY_DIR}/bin)
 find_package(Vitis 2022.2 COMPONENTS AIE AIE2)
 configure_file(./utils/vitisVariables.config.in
                ${CMAKE_BINARY_DIR}/utils/vitisVariables.config @ONLY)
-find_package(Python3 COMPONENTS Interpreter)
 
 # Set up default Vitis Sysroot as sysroot when testing on aarch64
 list(FIND AIE_RUNTIME_TARGETS "aarch64" indexAarch64)
@@ -148,6 +147,10 @@ if(AIE_INCLUDE_DOCS)
   add_dependencies(docs mlir-doc)
 endif()
 
+# setup python
+include(MLIRDetectPythonEnv)
+mlir_configure_python_dev_packages()
+
 # python install directory
 if(NOT AIE_PYTHON_PACKAGES_DIR)
   set(AIE_PYTHON_PACKAGES_DIR "${CMAKE_CURRENT_BINARY_DIR}/python")
@@ -158,15 +161,6 @@ if(NOT AIE_PYTHON_INSTALL_DIR)
   set(AIE_PYTHON_INSTALL_DIR "python")
 endif()
 
-# setup python
-find_package(
-  Python3
-  COMPONENTS Interpreter Development
-  REQUIRED)
-include(MLIRDetectPythonEnv)
-mlir_detect_pybind11_install()
-find_package(pybind11 2.6 REQUIRED)
-
 add_subdirectory(include)
 add_subdirectory(lib)
 add_subdirectory(python)
@@ -179,7 +173,7 @@ add_subdirectory(tools)
 
 if(NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
   install(
-    DIRECTORY include/aie
+    DIRECTORY include/aie include/aie-c
     DESTINATION include
     COMPONENT aie-headers
     FILES_MATCHING