builder: fix bug for incorrectly detecting tcc as icc, when V was installed in a path containing icc (#17271)

Author: crat1985

vlib/v/builder/cc.v

@@ -196,12 +196,14 @@ fn (mut v Builder) setup_ccompiler_options(ccompiler string) {
 			}
 		}
 	}
-	//
-	ccoptions.is_cc_tcc = ccompiler.contains('tcc') || ccoptions.guessed_compiler == 'tcc'
-	ccoptions.is_cc_gcc = ccompiler.contains('gcc') || ccoptions.guessed_compiler == 'gcc'
-	ccoptions.is_cc_icc = ccompiler.contains('icc') || ccoptions.guessed_compiler == 'icc'
-	ccoptions.is_cc_msvc = ccompiler.contains('msvc') || ccoptions.guessed_compiler == 'msvc'
-	ccoptions.is_cc_clang = ccompiler.contains('clang') || ccoptions.guessed_compiler == 'clang'
+	ccompiler_file_name := os.file_name(ccompiler)
+	ccoptions.is_cc_tcc = ccompiler_file_name.contains('tcc') || ccoptions.guessed_compiler == 'tcc'
+	ccoptions.is_cc_gcc = ccompiler_file_name.contains('gcc') || ccoptions.guessed_compiler == 'gcc'
+	ccoptions.is_cc_icc = ccompiler_file_name.contains('icc') || ccoptions.guessed_compiler == 'icc'
+	ccoptions.is_cc_msvc = ccompiler_file_name.contains('msvc')
+		|| ccoptions.guessed_compiler == 'msvc'
+	ccoptions.is_cc_clang = ccompiler_file_name.contains('clang')
+		|| ccoptions.guessed_compiler == 'clang'
 	// For C++ we must be very tolerant
 	if ccoptions.guessed_compiler.contains('++') {
 		ccoptions.args << '-fpermissive'