c3-lang/libtommath

diff --git a/.gitignore b/.gitignore
index 26dad40..65f78cd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -48,3 +48,6 @@ tommath.tex
 
 # ignore files generated by testme.sh
 test_*.txt
+
+*.bak
+*.orig