remove config.h.in and ltmain.sh as it is autogenerated, too
diff --git a/.gitignore b/.gitignore
index 8c0f25f..537e1d5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,11 +2,12 @@
 aclocal.m4
 autom4te.cache
 config.guess
-config.h.in~
+config.h.in*
 config.sub
 configure
 depcomp
 install-sh
+ltmain.sh
 missing
 doc/Makefile.in
 ggsn/Makefile.in