Enable incremental CMake build (#684)

* Enable incremental CMake build
Signed-off-by: Jinze Xue <jinzex@nvidia.com>

* Update setup.py
Co-authored-by: Tim Moon <4406448+timmoon10@users.noreply.github.com>
Signed-off-by: Jinze Xue <155670984+jinzex@users.noreply.github.com>

* Update setup.py
Co-authored-by: Tim Moon <4406448+timmoon10@users.noreply.github.com>
Signed-off-by: Jinze Xue <155670984+jinzex@users.noreply.github.com>

* remove tempfile import
Signed-off-by: Jinze Xue <jinzex@nvidia.com>

---------
Signed-off-by: Jinze Xue <jinzex@nvidia.com>
Signed-off-by: Jinze Xue <155670984+jinzex@users.noreply.github.com>
Co-authored-by: Jinze Xue <jinzex@nvidia.com>
Co-authored-by: Tim Moon <4406448+timmoon10@users.noreply.github.com>
Co-authored-by: Kirthi Shankar Sivamani <ksivamani@nvidia.com>

setup.py

@@ -14,7 +14,6 @@ import subprocess
 from subprocess import CalledProcessError
 import sys
 import sysconfig
-import tempfile
 from typing import List, Optional, Tuple, Union
 
 import setuptools
@@ -360,8 +359,10 @@ class CMakeBuildExtension(BuildExtension):
         for ext in self.extensions:
             if isinstance(ext, CMakeExtension):
                 print(f"Building CMake extension {ext.name}")
-                with tempfile.TemporaryDirectory() as build_dir:
-                    build_dir = Path(build_dir)
+                # Set up incremental builds for CMake extensions
+                setup_dir = Path(__file__).resolve().parent
+                build_dir = setup_dir / "build" / "cmake"
+                build_dir.mkdir(parents=True, exist_ok=True)  # Ensure the directory exists
                 package_path = Path(self.get_ext_fullpath(ext.name))
                 install_dir = package_path.resolve().parent
                 ext._build_cmake(