[bug#59453] [PATCH core-updates] gnu: mesa: Fix library paths in Vulkan layer manifests.

[Kaelyn Takata via Guix-patches via <guix-patches@gnu.org>]

* gnu/packages/gl.scm (mesa): Fix library paths in Vulkan layer manifests.
---
 gnu/packages/gl.scm | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/gnu/packages/gl.scm b/gnu/packages/gl.scm
index dd62fac13e..c26a51cb32 100644
--- a/gnu/packages/gl.scm
+++ b/gnu/packages/gl.scm
@@ -488,7 +488,28 @@ (define-public mesa
                                                        file)
                                               (symlink reference file)))
                                         others))))
-                         (delete-duplicates inodes))))))))
+                         (delete-duplicates inodes)))))
+         (add-after 'install 'set-layer-path-in-manifests
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let* ((out (assoc-ref outputs "out"))
+                    (implicit-path (string-append
+                                    out
+                                    "/share/vulkan/implicit_layer.d/"))
+                    (explicit-path (string-append
+                                    out
+                                    "/share/vulkan/explicit_layer.d/"))
+                    (fix-layer-path
+                     (lambda (layer-name)
+                       (let* ((explicit (string-append explicit-path layer-name ".json"))
+                              (implicit (string-append implicit-path layer-name ".json"))
+                              (manifest (if (file-exists? explicit)
+                                            explicit
+                                            implicit)))
+                         (substitute* manifest
+                           (((string-append "\"lib" layer-name ".so\""))
+                             (string-append "\"" out "/lib/lib" layer-name ".so\"")))))))
+               (for-each fix-layer-path '("VkLayer_MESA_device_select"
+                                          "VkLayer_MESA_overlay"))))))))
     (home-page "https://mesa3d.org/")
     (synopsis "OpenGL and Vulkan implementations")
     (description "Mesa is a free implementation of the OpenGL and Vulkan

base-commit: affaacf4f46639dcc8239a438cad11c2a6ef6c9a
--
2.38.1