.gitignore : updated to ignore files based on new make style.

.gitignore

@@ -1,3 +1,20 @@
 Makefile.in
 .DS_Store
+aclocal.m4
+config.h.in
+config.h.in~
+configure
+Makefile.in
+
+autom4te.cache
+build-aux
+
+m4/libtool.m4
+m4/lt~obsolete.m4
+m4/libtool.m4
+m4/ltoptions.m4
+m4/ltsugar.m4
+m4/ltversion.m4
+m4/lt~obsolete.m4
+m4/.DS_Store