[master] 4dc4d4564 We need ssize_t in vre.c

[Dridi Boukelmoune]

commit 4dc4d4564c1b6a87dbb311616cc8edc4b104c35f
Author: Dridi Boukelmoune <dridi.boukelmoune at gmail.com>
Date:   Sun Jun 14 10:57:53 2020 +0200

    We need ssize_t in vre.c
    
    Refs #3345

diff --git a/lib/libvarnish/vre.c b/lib/libvarnish/vre.c
index 4b9c6d7b1..5f2a81a72 100644
--- a/lib/libvarnish/vre.c
+++ b/lib/libvarnish/vre.c
@@ -32,6 +32,7 @@
 
 #include <pcre.h>
 #include <string.h>
+#include <unistd.h>
 
 #include "vdef.h"