build: allow overriding clang usage

PR-URL: #56016
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
Reviewed-By: Richard Lau <rlau@redhat.com>

Author: codebytere

configure.py

@@ -130,6 +130,12 @@
 default=None,
 help='use the prefix to look for pre-installed headers')
 
+parser.add_argument('--use_clang',
+action='store_true',
+dest='use_clang',
+default=None,
+help='use clang instead of gcc')
+
 parser.add_argument('--dest-os',
 action='store',
 dest='dest_os',
@@ -1405,6 +1411,10 @@ def configure_node(o):
 o['variables']['target_arch'] =target_arch
 o['variables']['node_byteorder'] =sys.byteorder
 
+# Allow overriding the compiler - needed by embedders.
+ifoptions.use_clang:
+o['variables']['clang'] =1
+
 cross_compiling= (options.cross_compiling
 ifoptions.cross_compilingisnotNone
 elsetarget_arch!=host_arch)