libxcb: gcc2 fix, required after the bump from 1.6 to 1.12.

x11-libs/libxcb/patches/libxcb-1.12.patchset

@@ -35,3 +35,27 @@ index a3357ef..98fd793 100644
 -- 
 2.14.2
 
+
+From d0fe33a095851988d674431efb1abe27ae7afd53 Mon Sep 17 00:00:00 2001
+From: fbrosson <fbrosson@localhost>
+Date: Sun, 25 Mar 2018 17:51:15 +0000
+Subject: C89 fixes for gcc2 compatibility, needed since libxcb 1.12.
+
+
+diff --git a/src/xcb_out.c b/src/xcb_out.c
+index 3601a5f..11a5cf7 100644
+--- a/src/xcb_out.c
++++ b/src/xcb_out.c
+@@ -179,7 +179,8 @@ uint32_t xcb_get_maximum_request_length(xcb_connection_t *c)
+ 
+ static void close_fds(int *fds, unsigned int num_fds)
+ {
+-    for (unsigned int index = 0; index < num_fds; index++)
++    unsigned int index;
++    for (index = 0; index < num_fds; index++)
+         close(fds[index]);
+ }
+ 
+-- 
+2.16.3
+