diff -Nru orc-0.4.30/debian/changelog orc-0.4.30/debian/changelog
--- orc-0.4.30/debian/changelog	2019-09-09 07:24:19.000000000 +0000
+++ orc-0.4.30/debian/changelog	2019-11-01 23:12:43.000000000 +0000
@@ -1,3 +1,9 @@
+orc (1:0.4.30-1+rpi1) bullseye-staging; urgency=medium
+
+  * Apply upstream patch to fix vips FTBFS (Closes: 940979)
+
+ -- Peter Michael Green <plugwash@raspbian.org>  Fri, 01 Nov 2019 23:12:43 +0000
+
 orc (1:0.4.30-1) unstable; urgency=medium
 
   * New upstream release
diff -Nru orc-0.4.30/debian/patches/fix-enum-typedef.patch orc-0.4.30/debian/patches/fix-enum-typedef.patch
--- orc-0.4.30/debian/patches/fix-enum-typedef.patch	1970-01-01 00:00:00.000000000 +0000
+++ orc-0.4.30/debian/patches/fix-enum-typedef.patch	2019-11-01 23:12:05.000000000 +0000
@@ -0,0 +1,25 @@
+From 0b1a288835d6a3b6d52f77e0c2e86d685de6526e Mon Sep 17 00:00:00 2001
+From: Pablo Marcos Oltra <pablo.marcos.oltra@gmail.com>
+Date: Tue, 10 Sep 2019 17:36:51 +0200
+Subject: [PATCH] Fix OrcTargetPowerPCFlags enum typedef
+
+---
+ orc/orctarget.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/orc/orctarget.h b/orc/orctarget.h
+index 642bfe3..53000b3 100644
+--- a/orc/orctarget.h
++++ b/orc/orctarget.h
+@@ -19,7 +19,7 @@ enum {
+   ORC_TARGET_FAST_DENORMAL = (1<<31)
+ };
+ 
+-enum {
++typedef enum {
+   ORC_TARGET_POWERPC_64BIT = (1<<0),
+   ORC_TARGET_POWERPC_LE = (1<<1),
+   ORC_TARGET_POWERPC_ALTIVEC = (1<<2),
+-- 
+2.22.0
+
diff -Nru orc-0.4.30/debian/patches/series orc-0.4.30/debian/patches/series
--- orc-0.4.30/debian/patches/series	2019-09-03 09:34:16.000000000 +0000
+++ orc-0.4.30/debian/patches/series	2019-11-01 23:12:15.000000000 +0000
@@ -0,0 +1 @@
+fix-enum-typedef.patch