Update .gitignore file.

diff --git a/m4/.gitignore b/m4/.gitignore
new file mode 100644 (file)
index 0000000..e8d6287
--- /dev/null
+++ b/m4/.gitignore
@@ -0,0 +1,13 @@
+argz.m4
+config.guess
+config.sub
+depcomp
+install-sh
+libtool.m4
+ltdl.m4
+ltoptions.m4
+ltsugar.m4
+ltversion.m4
+lt~obsolete.m4
+missing
+ylwrap