diff --git a/gzdoom-vulkan.patch b/gzdoom-vulkan.patch
index 42c7bc7..a387e16 100644
--- a/gzdoom-vulkan.patch
+++ b/gzdoom-vulkan.patch
@@ -4,15 +4,16 @@ Date: 2019-04-13 15:02:22.799297208 +0200
 Use Vulkan/glslang/spirv system libraries instead of bundled code.
 
 ---
- CMakeLists.txt     |    4 +---
- src/CMakeLists.txt |    2 +-
- 2 files changed, 2 insertions(+), 4 deletions(-)
+ CMakeLists.txt                                     |    4 +---
+ src/CMakeLists.txt                                 |    2 +-
+ src/common/rendering/vulkan/system/vk_builders.cpp |    4 ++++
+ 3 files changed, 6 insertions(+), 4 deletions(-)
 
-Index: gzdoom-g4.4.0/CMakeLists.txt
+Index: gzdoom-g4.7.1/CMakeLists.txt
 ===================================================================
---- gzdoom-g4.4.0.orig/CMakeLists.txt
-+++ gzdoom-g4.4.0/CMakeLists.txt
-@@ -307,9 +307,7 @@ option(FORCE_INTERNAL_ASMJIT "Use intern
+--- gzdoom-g4.7.1.orig/CMakeLists.txt
++++ gzdoom-g4.7.1/CMakeLists.txt
+@@ -324,9 +324,7 @@ option(FORCE_INTERNAL_ASMJIT "Use intern
  mark_as_advanced( FORCE_INTERNAL_ASMJIT )
  
  if (HAVE_VULKAN)
@@ -23,11 +24,11 @@ Index: gzdoom-g4.4.0/CMakeLists.txt
  endif()
  
  if( ZLIB_FOUND AND NOT FORCE_INTERNAL_ZLIB )
-Index: gzdoom-g4.4.0/src/CMakeLists.txt
+Index: gzdoom-g4.7.1/src/CMakeLists.txt
 ===================================================================
---- gzdoom-g4.4.0.orig/src/CMakeLists.txt
-+++ gzdoom-g4.4.0/src/CMakeLists.txt
-@@ -435,7 +435,7 @@ add_custom_target( revision_check ALL
+--- gzdoom-g4.7.1.orig/src/CMakeLists.txt
++++ gzdoom-g4.7.1/src/CMakeLists.txt
+@@ -404,7 +404,7 @@ add_custom_target( revision_check ALL
  
  set( ZDOOM_LIBS ${ZDOOM_LIBS} "${ZLIB_LIBRARIES}" "${JPEG_LIBRARIES}" "${BZIP2_LIBRARIES}" "${CMAKE_DL_LIBS}" )
  if (HAVE_VULKAN)
@@ -36,3 +37,25 @@ Index: gzdoom-g4.4.0/src/CMakeLists.txt
  endif()
  include_directories( "${ZLIB_INCLUDE_DIR}" "${BZIP2_INCLUDE_DIR}" "${LZMA_INCLUDE_DIRS}" "${JPEG_INCLUDE_DIR}" "${ZMUSIC_INCLUDE_DIR}" )
  
+Index: gzdoom-g4.7.1/src/common/rendering/vulkan/system/vk_builders.cpp
+===================================================================
+--- gzdoom-g4.7.1.orig/src/common/rendering/vulkan/system/vk_builders.cpp
++++ gzdoom-g4.7.1/src/common/rendering/vulkan/system/vk_builders.cpp
+@@ -25,6 +25,7 @@
+ #include "renderstyle.h"
+ #include <ShaderLang.h>
+ #include <GlslangToSpv.h>
++#include <glslang/build_info.h>
+ 
+ static const TBuiltInResource DefaultTBuiltInResource = {
+ 	/* .MaxLights = */ 32,
+@@ -119,6 +120,9 @@ static const TBuiltInResource DefaultTBu
+ 	/* .maxTaskWorkGroupSizeY_NV = */ 1,
+ 	/* .maxTaskWorkGroupSizeZ_NV = */ 1,
+ 	/* .maxMeshViewCountNV = */ 4,
++#if defined(GLSLANG_VERSION_MAJOR) && GLSLANG_VERSION_MAJOR >= 11
++	/* .maxDualSourceDrawBuffersEXT = */ 4,
++#endif
+ 
+ 	/* .limits = */ {
+ 	/* .nonInductiveForLoops = */ 1,
diff --git a/gzdoom.changes b/gzdoom.changes
index 730dccb..15debc8 100644
--- a/gzdoom.changes
+++ b/gzdoom.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Sat Apr 23 01:04:05 UTC 2022 - Jan Engelhardt <jengelh@inai.de>
+
+- Reenable use of system vulkan libraries on Tumbleweed.
+
 -------------------------------------------------------------------
 Fri Apr 15 23:08:58 UTC 2022 - Cristian Rodríguez <crrodriguez@opensuse.org>
 
diff --git a/gzdoom.spec b/gzdoom.spec
index 28615f2..f5ac6c8 100644
--- a/gzdoom.spec
+++ b/gzdoom.spec
@@ -33,6 +33,7 @@ Patch4:         gzdoom-sdlbug.patch
 Patch5:         gzdoom-vulkan.patch
 BuildRequires:  cmake >= 2.8.7
 BuildRequires:  gcc-c++
+BuildRequires:  glslang-devel
 BuildRequires:  libjpeg-devel
 BuildRequires:  pkg-config
 BuildRequires:  unzip
@@ -44,14 +45,8 @@ BuildRequires:  pkgconfig(gl)
 BuildRequires:  pkgconfig(gtk+-3.0)
 BuildRequires:  pkgconfig(openal)
 BuildRequires:  pkgconfig(sdl2) >= 2.0.6
+BuildRequires:  pkgconfig(vulkan)
 BuildRequires:  pkgconfig(zlib)
-%if 0%{?sle_version} >= 150200
-BuildRequires:  glslang-devel >= 6.3
-BuildRequires:  pkgconfig(vulkan) >= 1.1.77
-%else
-Provides:       bundled(glslang) = 8.13.3559
-Provides:       bundled(vulkan) = 1.1.114
-%endif
 Suggests:       freedoom
 Provides:       qzdoom = 1.3.0
 Provides:       zdoom = 2.8.1
@@ -73,13 +68,13 @@ GZDoom is a port (a modification) of the original Doom source code, featuring:
 * Demo record/playback of classic and Boom demos is not supported.
 
 %prep
-%setup -qn %name-g%version
-%patch -P 1 -P 2 -P 3 -P 4 -p1
-%if 0%{?sle_version} >= 150200
-%patch -P 5 -p1
+%autosetup -n %name-g%version -p1
 rm -Rf glslang src/common/rendering/vulkan/thirdparty/vulkan
-%endif
 perl -i -pe 's{__DATE__}{""}g' src/common/platform/posix/sdl/i_main.cpp
+mkdir -p extra_include/glslang
+%if 0%{?suse_version} && 0%{?suse_version} < 1550
+touch extra_include/glslang/build_info.h
+%endif
 
 %build
 # There is handcrafted assembler, which LTO does not play nice with.
@@ -91,6 +86,7 @@ perl -i -pe 's{__DATE__}{""}g' src/common/platform/posix/sdl/i_main.cpp
 export CFLAGS="%optflags -msse -msse2"
 export CXXFLAGS="%optflags -msse -msse2"
 %endif
+export CXXFLAGS="$CXXFLAGS -I$PWD/extra_include"
 %cmake -DNO_STRIP=1 \
 	-DCMAKE_SHARED_LINKER_FLAGS="" \
 	-DCMAKE_EXE_LINKER_FLAGS="" -DCMAKE_MODULE_LINKER_FLAGS="" \