From 81861baee967380dd1e45fe863f57b1c960fcea8 Mon Sep 17 00:00:00 2001
From: John Cupitt <jcupitt@gmail.com>
Date: Thu, 30 May 2019 19:46:05 +0100
Subject: [PATCH] add note to docs in vips_init()

---
 libvips/iofuncs/init.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libvips/iofuncs/init.c b/libvips/iofuncs/init.c
index 87008822..503fb7ae 100644
--- a/libvips/iofuncs/init.c
+++ b/libvips/iofuncs/init.c
@@ -151,6 +151,10 @@ vips_get_argv0( void )
  * therefore be unable to find its data files. It is much better to call 
  * this macro yourself.
  *
+ * @ARGV0 is used to help discover message catalogues if libvips has been 
+ * relocated. If you don't need a relocatable package, you can just pass `""`
+ * and it'll be fine.
+ *
  * Additionally, VIPS_INIT() can be run from any thread, but it must not be
  * called from more than one thread at the same time. This is much easier to 
  * guarantee if you call it yourself.