ignoring some build files

.gitignore

+# ./
+configure
+config.status
+config.log
+include
+objects
+autom4te.cache
+lib
+Makefile
+aclocal.m4
+src/ppm_define.h
+
+# output files
+*.out
+*.sub
+*.dat
+*.o
+*.mod
+*.log
+
+# src/interpolate/test/
+src/interpolate/test/ppm_test_interp_m2p
+src/interpolate/test/ppm_test_interp_p2m
+
+# src/neighlist/test/
+src/neighlist/test/ppm_test_inl2d
+src/neighlist/test/ppm_test_inl2d_2
+src/neighlist/test/ppm_test_inl3d
+src/neighlist/test/ppm_test_inl3d_2
+
+
+# temporary files
+*.swp
+*~

aclocal.m4

-# generated automatically by aclocal 1.10 -*- Autoconf -*-
+# generated automatically by aclocal 1.11.1 -*- Autoconf -*-
 
 # Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
-# 2005, 2006  Free Software Foundation, Inc.
+# 2005, 2006, 2007, 2008, 2009  Free Software Foundation, Inc.
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.

src/ppm_define.h

-#define __MPI
-#define __FFTW