@@ -1979,11 +1979,12 @@
 			break
 		])
 	])
 ])
 AS_IF([test x"$have_subprocesses" = x"yes"], [
-	AC_SUBST(OF_SUBPROCESS_M, "OFSubprocess.m")
+	AC_SUBST(USE_SRCS_SUBPROCESS, '${SRCS_SUBPROCESS}')
+	AC_SUBST(SUBPROCESS, "subprocess")
 	AC_DEFINE(OF_HAVE_SUBPROCESSES, 1, [Whether we have subprocesses])
 ])
 
 AC_CHECK_HEADERS_ONCE([complex.h sys/ioctl.h sys/ttycom.h])
 AC_CHECK_FUNCS(ioctl isatty)