Update Autotools.gitignore (#3005)

* Update Autotools.gitignore

Add ignore-rule for Makefiles generated by configure
(directly by config.status)

* Add some descriptive comment.

Add more descriptive comment to explain why Makefile should be ignore.

diff --git a/Autotools.gitignore b/Autotools.gitignore
index f4f545c9ca4b878021dde8167aed03b52b12cf8e..3523288c493bb43c434782badced044c5cd39cc9 100644 (file)
--- a/Autotools.gitignore
+++ b/Autotools.gitignore
@@ -41,3 +41,9 @@ m4/ltoptions.m4
 m4/ltsugar.m4
 m4/ltversion.m4
 m4/lt~obsolete.m4
+
+# Generated Makefile 
+# (meta build system like autotools, 
+# can automatically generate from config.status script
+# (which is called by configure script))
+Makefile