gnu: mangohud: Update to 0.7.0.

* gnu/packages/graphics.scm (mangohud): Update to 0.7.0.
[arguments]<#:configure-flags>: Remove "-Duse_system_vulkan=enabled" and
"-Dvulkan_datadir" from as they are no longer supported.
<#:phases>: Add 'unbundle-vulkan-headers'.
[inputs]: Add nlohmann-json.  Replace vulkan-headers with origin for
vulkan-headers@1.2.158.
[native-inputs]: Add git-minimal/pinned.

gnu/packages/graphics.scm

@@ -28,7 +28,7 @@
 ;;; Copyright © 2021 Ekaitz Zarraga <ekaitz@elenq.tech>
 ;;; Copyright © 2021, 2022 Vinicius Monego <monego@posteo.net>
 ;;; Copyright © 2022 Michael Rohleder <mike@rohleder.de>
-;;; Copyright © 2022 John Kehayias <john.kehayias@protonmail.com>
+;;; Copyright © 2022, 2023 John Kehayias <john.kehayias@protonmail.com>
 ;;; Copyright © 2022 Zheng Junjie <873216071@qq.com>
 ;;; Copyright © 2022 Tobias Kortkamp <tobias.kortkamp@gmail.com>
 ;;; Copyright © 2022 Paul A. Patience <paul@apatience.com>
@@ -121,6 +121,7 @@
   #:use-module (gnu packages tbb)
   #:use-module (gnu packages toolkits)
   #:use-module (gnu packages upnp)
+  #:use-module (gnu packages version-control)
   #:use-module (gnu packages video)
   #:use-module (gnu packages vulkan)
   #:use-module (gnu packages xiph)
@@ -1038,7 +1039,7 @@ distills complex, animated scenes into a set of baked geometric results.")
 (define-public mangohud
   (package
     (name "mangohud")
-    (version "0.6.8")
+    (version "0.7.0")
     (source
      (origin
        (method git-fetch)
@@ -1047,21 +1048,18 @@ distills complex, animated scenes into a set of baked geometric results.")
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
-        (base32 "19dp8l5njzl9xah0bhwlkl39vc8w2rnpvpdrhgaz3hnhz8b0r5df"))))
+        (base32 "1m4a2dqzqdhk9w1gvzppid7k0fxvplh5hmivvj9sda529s1g24rc"))))
     (build-system meson-build-system)
     (arguments
      (list
       #:build-type "release"
       #:configure-flags
-      #~(list "-Duse_system_vulkan=enabled"
+      #~(list "-Duse_system_spdlog=enabled"
-              "-Duse_system_spdlog=enabled"
               "-Dwith_xnvctrl=disabled"
-              "-Dappend_libdir_mangohud=false"
+              "-Dappend_libdir_mangohud=false")
-              (string-append "-Dvulkan_datadir="
-                             #$(this-package-input "vulkan-headers") "/share"))
       #:phases
       #~(modify-phases %standard-phases
-          ;; Mangohud tries to build the imgui library as a meson submodule,
+          ;; MangoHud tries to build the imgui library as a meson submodule,
           ;; so we change the dependency to the imgui input instead.
           (add-after 'unpack 'unbundle-imgui
             (lambda _
@@ -1073,6 +1071,23 @@ distills complex, animated scenes into a set of baked geometric results.")
                   "declare_dependency(dependencies: "
                   "cpp.find_library('imgui'), include_directories: '"
                   #$(this-package-input "imgui") "/include/imgui')")))))
+          ;; Likewise, MangoHud bundles a Vulkan headers submodule to use a
+          ;; specific version, which we provide as an input and adjust the
+          ;; build accordingly.
+          (add-after 'unbundle-imgui 'unbundle-vulkan-headers
+            (lambda* (#:key inputs #:allow-other-keys)
+              (substitute* "meson.build"
+                (("vkh_sp = .*")
+                 "")
+                (("vkh_sp.get_variable\\('vulkan_api_xml'\\)")
+                 (string-append "files('"
+                                (search-input-file inputs "registry/vk.xml")
+                                "')"))
+                (("dep_vulkan = .*")
+                 ""))
+              (substitute* "src/meson.build"
+                (("dep_vulkan,")
+                 ""))))
           (add-after 'unpack 'patch-paths
             (lambda* (#:key inputs #:allow-other-keys)
               (substitute* "src/meson.build"
@@ -1098,11 +1113,20 @@ distills complex, animated scenes into a set of baked geometric results.")
            libx11
            mesa
            mesa-utils
+           nlohmann-json
            python-mako
            spdlog
-           vulkan-headers
+           (origin
+             (method git-fetch)
+             (uri (git-reference
+                   (url "https://github.com/KhronosGroup/Vulkan-Headers")
+                   (commit "v1.2.158")))
+             (file-name (git-file-name "vulkan" "v1.2.158"))
+             (sha256
+              (base32
+               "0jvaqj87792yccpr290djb18pqaisspq9dw6bqim6mrhfgda9v76")))
            vulkan-loader))
-    (native-inputs (list pkg-config python))
+    (native-inputs (list git-minimal/pinned pkg-config python))
     (home-page "https://github.com/flightlessmango/MangoHud/")
     (synopsis "Vulkan and OpenGL overlay for monitoring performance and hardware")
     (description "MangoHud is a Vulkan and OpenGL overlay for monitoring