--- config/Darwin	2019-02-28 07:44:39.000000000 +0800
+++ config/Darwin	2025-08-15 22:45:34.000000000 +0800
@@ -23,6 +23,7 @@
 #define Cdynamic
 #define CppCommand '/usr/bin/cpp -traditional'
 #define CCompiler   gcc
+#define CxxCompiler   g\+\+
 #define FCompiler   gfortran
 #define CtoFLibraries   -lgfortran -lm
 #define CtoFLibrariesUser   -lgfortran -lm