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-rw-r--r--libgphoto2_port/gphoto-m4/gp-set.m46
1 files changed, 6 insertions, 0 deletions
diff --git a/libgphoto2_port/gphoto-m4/gp-set.m4 b/libgphoto2_port/gphoto-m4/gp-set.m4
index f9a061ec2..66056c2b2 100644
--- a/libgphoto2_port/gphoto-m4/gp-set.m4
+++ b/libgphoto2_port/gphoto-m4/gp-set.m4
@@ -1,3 +1,9 @@
+# gp-set.m4 - implement configure time set arithmetic -*- Autoconf -*-
+# serial 13
+dnl | Increment the above serial number every time you edit this file.
+dnl | When it finds multiple m4 files with the same name,
+dnl | aclocal will use the one with the highest serial.
+dnl
dnl ######################################################################
dnl Set operations using shell
dnl ######################################################################