diff --git a/m4/.gitignore b/m4/.gitignore
new file mode 100644
index 00000000..10b99a71
--- /dev/null
+++ b/m4/.gitignore
@@ -0,0 +1,48 @@
+
+autom4te.cache/
+autom4te.cache/*
+Makefile.in
+
+*.o
+
+
+build/src/CTEM
+
+*.mod
+
+*.swp
+
+
+build/
+
+configure
+
+config/
+
+examples/global-lunar-bombardment/.DS_Store
+
+examples/mare-with-rays-model2/.DS_Store
+
+__pycache__/
+
+*.dat
+
+*.png
+
+*.DS_Store
+
+alocal.m4
+
+*.m4
+
+*.eps
+
+*.jpg
+
+examples/mare-with-rays-model2/CTEM
+
+examples/global-lunar-bombardment/CTEM
+
+examples/*/*.o*
+
+*.out