Either you should not write it, or disable all built-in rules of Make with a flag. Doing both is asking for trouble. Make has lots of built-in rules for lots o

Either you should not write it, or disable all built-in rules of Make with a flag. Doing both is asking for trouble. Make has lots of built-in rules for lots of languages, C, C++, Fortran, Lex, Yacc, etc.