Adding new file.

gnumake.h

@@ -0,0 +1,27 @@
+/* External interfaces usable by dynamic objects loaded into GNU Make.
+Copyright (C) 2013 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#ifndef _GNUMAKE_H_
+#define _GNUMAKE_H_
+
+/* Specify the location of elements read from makefiles.  */
+typedef struct
+  {
+    const char *filenm;
+    unsigned long lineno;
+  } gmk_floc;
+
+#endif  /* _GNUMAKE_H_ */