- the first part is fixing the configure failure, see https://github.com/Cantera/cantera/issues/1536

--- SConstruct.orig	2024-12-16 23:22:11 UTC
+++ SConstruct
@@ -902,6 +902,9 @@ if os.name == "nt":
     for key,val in env["ENV"].items():
         env["ENV"][key] = str(val)
 
+elif "cc" in env.subst("$CC"):
+    config.select("clang")
+
 else:
     env["INSTALL_MANPAGES"] = True
 
@@ -933,6 +936,9 @@ elif "clang" in env.subst("$CC"):
 elif "clang" in env.subst("$CC"):
     config.select("clang")
 
+elif "cc" in env.subst("$CC"):
+    config.select("clang")
+
 else:
     # Assume a GCC compatible compiler if nothing else
     logger.warning(f"Unrecognized C compiler {env['CC']!r}")
@@ -991,10 +997,10 @@ if 'sphinx' in COMMAND_LINE_TARGETS:
     env['doxygen_docs'] = True
 if 'sphinx' in COMMAND_LINE_TARGETS:
     env['sphinx_docs'] = True
-for arg in ARGUMENTS:
-    if arg not in config:
-        logger.error(f"Encountered unexpected command line option: {arg!r}")
-        sys.exit(1)
+#for arg in ARGUMENTS:
+#    if arg not in config:
+#        logger.error(f"Encountered unexpected command line option: {arg!r}")
+#        sys.exit(1)
 
 # Store full config for doc build
 if env['sphinx_docs']: