diff -Nru gulkan-0.15.1/debian/changelog gulkan-0.15.1/debian/changelog
--- gulkan-0.15.1/debian/changelog	2020-07-18 00:04:33.000000000 +0000
+++ gulkan-0.15.1/debian/changelog	2022-01-06 12:39:04.000000000 +0000
@@ -1,3 +1,12 @@
+gulkan (0.15.1-2.1) unstable; urgency=medium
+
+  * Non-maintainer upload.
+  * Add upstream FTBFS fix. (Closes: #997229)
+  * Build Depend and build-depend on libgdk-pixbuf-2.0-dev instead
+    of libgdk-pixbuf2.0-dev. (Closes: #976029)
+
+ -- Adrian Bunk <bunk@debian.org>  Thu, 06 Jan 2022 14:39:04 +0200
+
 gulkan (0.15.1-2) unstable; urgency=medium
 
   * Source only upload.
diff -Nru gulkan-0.15.1/debian/control gulkan-0.15.1/debian/control
--- gulkan-0.15.1/debian/control	2020-07-18 00:04:33.000000000 +0000
+++ gulkan-0.15.1/debian/control	2022-01-06 12:39:04.000000000 +0000
@@ -6,7 +6,7 @@
                glslang-tools,
                gtk-doc-tools,
                libcairo2-dev,
-               libgdk-pixbuf2.0-dev,
+               libgdk-pixbuf-2.0-dev,
                libglew-dev,
                libglfw3-dev,
                libglib2.0-dev,
@@ -35,7 +35,7 @@
 Architecture: any
 Multi-Arch: same
 Depends: libcairo2-dev,
-         libgdk-pixbuf2.0-dev,
+         libgdk-pixbuf-2.0-dev,
          libgraphene-1.0-dev,
          libvulkan-dev,
          libgulkan-0.15-0 (= ${binary:Version}),
diff -Nru gulkan-0.15.1/debian/patches/0001-Fix-incompatible-types.patch gulkan-0.15.1/debian/patches/0001-Fix-incompatible-types.patch
--- gulkan-0.15.1/debian/patches/0001-Fix-incompatible-types.patch	1970-01-01 00:00:00.000000000 +0000
+++ gulkan-0.15.1/debian/patches/0001-Fix-incompatible-types.patch	2022-01-06 12:38:47.000000000 +0000
@@ -0,0 +1,25 @@
+From ea94e97a58538090f65fae3b94395e5c08d4b8ee Mon Sep 17 00:00:00 2001
+From: Chris Allan <chrisallan@pm.me>
+Date: Sat, 17 Apr 2021 20:15:58 +0000
+Subject: Fix incompatible types
+
+---
+ src/gulkan-texture.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/gulkan-texture.c b/src/gulkan-texture.c
+index 3fc5bd6..b06fcf3 100644
+--- a/src/gulkan-texture.c
++++ b/src/gulkan-texture.c
+@@ -47,7 +47,7 @@ gulkan_texture_init (GulkanTexture *self)
+   self->image = VK_NULL_HANDLE;
+   self->image_memory = VK_NULL_HANDLE;
+   self->image_view = VK_NULL_HANDLE;
+-  self->format = VK_NULL_HANDLE;
++  self->format = VK_FORMAT_UNDEFINED;
+   self->mip_levels = 1;
+ }
+ 
+-- 
+2.20.1
+
diff -Nru gulkan-0.15.1/debian/patches/series gulkan-0.15.1/debian/patches/series
--- gulkan-0.15.1/debian/patches/series	1970-01-01 00:00:00.000000000 +0000
+++ gulkan-0.15.1/debian/patches/series	2022-01-06 12:39:03.000000000 +0000
@@ -0,0 +1 @@
+0001-Fix-incompatible-types.patch