Add gitignore

Initial pass ignores a lot of autotools cruft.

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Change-Id: I9263fd6a5831c367dcd09e1b333cc970dda91b72
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..2971278
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,27 @@
+aclocal.m4
+aminclude_static.am
+ar-lib
+autom4te.cache
+compile
+config.guess
+config.log
+config.status
+config.sub
+configure
+cscope.*
+depcomp
+.deps
+.dirstamp
+*.gcda
+*.gcno
+*.in
+*~
+install-sh
+libtool
+ltmain.sh
+m4
+Makefile
+missing
+stamp-h1
+*.swp
+test-driver