build,win: enable pch for clang-cl

Fixes: nodejs#55208
PR-URL: nodejs#55249
Reviewed-By: Yagiz Nizipli <[email protected]>

Author: StefanStojanovic

node.gypi

@@ -65,15 +65,11 @@
         'NODE_PLATFORM="win32"',
         '_UNICODE=1',
       ],
-      'conditions': [
-        ['clang==0', {
-          'msvs_precompiled_header': 'tools/msvs/pch/node_pch.h',
-          'msvs_precompiled_source': 'tools/msvs/pch/node_pch.cc',
-          'sources': [
-            '<(_msvs_precompiled_header)',
-            '<(_msvs_precompiled_source)',
-          ],
-        }],
+      'msvs_precompiled_header': 'tools/msvs/pch/node_pch.h',
+      'msvs_precompiled_source': 'tools/msvs/pch/node_pch.cc',
+      'sources': [
+        '<(_msvs_precompiled_header)',
+        '<(_msvs_precompiled_source)',
       ],
     }, { # POSIX
       'defines': [ '__POSIX__' ],

tools/gyp/pylib/gyp/generator/msvs.py

@@ -3412,7 +3412,11 @@ def _FinalizeMSBuildSettings(spec, configuration):
     )
     # Turn on precompiled headers if appropriate.
     if precompiled_header:
-        precompiled_header = os.path.split(precompiled_header)[1]
+        # While MSVC works with just file name eg. "v8_pch.h", ClangCL requires
+        # the full path eg. "tools/msvs/pch/v8_pch.h" to find the file.
+        # P.S. Only ClangCL defines msbuild_toolset, for MSVC it is None.
+        if configuration.get("msbuild_toolset") != 'ClangCL':
+            precompiled_header = os.path.split(precompiled_header)[1]
         _ToolAppend(msbuild_settings, "ClCompile", "PrecompiledHeader", "Use")
         _ToolAppend(
             msbuild_settings, "ClCompile", "PrecompiledHeaderFile", precompiled_header

tools/v8_gypfiles/v8.gyp

@@ -48,7 +48,7 @@
       'type': 'none',
       'toolsets': ['host', 'target'],
       'conditions': [
-        ['OS=="win" and clang==0', {
+        ['OS=="win"', {
           'direct_dependent_settings': {
             'msvs_precompiled_header': '<(V8_ROOT)/../../tools/msvs/pch/v8_pch.h',
             'msvs_precompiled_source': '<(V8_ROOT)/../../tools/msvs/pch/v8_pch.cc',