Update m4/.gitignore.

2024-02-15 22:26:43 +08:00 · 2024-02-15 22:26:43 +08:00 · 4323bc3e0c
--- a/m4/.gitignore
+++ b/m4/.gitignore
@ -1,3 +1,4 @@
+build-to-host.m4
 codeset.m4
 extern-inline.m4
 fcntl-o.m4