If the makefile uses @SET_MAKE@, the configure script has to call PROG_MAKE_SET.

--- fetchmail-5.7.2/configure.in.make_set	Mon Mar  5 15:01:02 2001
+++ fetchmail-5.7.2/configure.in	Mon Mar  5 15:02:22 2001
@@ -29,6 +29,7 @@
 AC_C_CONST			dnl getopt needs this.
 
 AC_PROG_LEX
+AC_PROG_MAKE_SET
 AC_PROG_YACC
 AC_SUBST(CPFLAGS)
 AC_SUBST(CEFLAGS)