From c55ce6c9bb872edfcae372f85f05bb3018ee4fce Mon Sep 17 00:00:00 2001
From: Ellie Hermaszewska <git@monoid.al>
Date: Thu, 28 Apr 2022 16:51:03 +0800
Subject: [PATCH] vulkan-loader: fix include path in pkgconfig description
 (#170748)

---
 .../libraries/vulkan-loader/default.nix            |  2 ++
 .../libraries/vulkan-loader/fix-pkgconfig.patch    | 14 ++++++++++++++
 2 files changed, 16 insertions(+)
 create mode 100644 pkgs/development/libraries/vulkan-loader/fix-pkgconfig.patch

diff --git a/pkgs/development/libraries/vulkan-loader/default.nix b/pkgs/development/libraries/vulkan-loader/default.nix
index b8d2948cb68d..196081aa58c1 100644
--- a/pkgs/development/libraries/vulkan-loader/default.nix
+++ b/pkgs/development/libraries/vulkan-loader/default.nix
@@ -13,6 +13,8 @@ stdenv.mkDerivation rec {
       sha256 = "sha256-NQu98wA7UK231rpoKDs1yQ6pEyB4wZg7MjFC3JwS2BY=";
     });
 
+  patches = [ ./fix-pkgconfig.patch ];
+
   nativeBuildInputs = [ cmake pkg-config ];
   buildInputs = [ vulkan-headers ]
     ++ lib.optionals (!stdenv.isDarwin) [ libX11 libxcb libXrandr wayland ];
diff --git a/pkgs/development/libraries/vulkan-loader/fix-pkgconfig.patch b/pkgs/development/libraries/vulkan-loader/fix-pkgconfig.patch
new file mode 100644
index 000000000000..b5c3bf4428ab
--- /dev/null
+++ b/pkgs/development/libraries/vulkan-loader/fix-pkgconfig.patch
@@ -0,0 +1,14 @@
+diff --git a/loader/vulkan.pc.in b/loader/vulkan.pc.in
+index 153815577..584b15273 100644
+--- a/loader/vulkan.pc.in
++++ b/loader/vulkan.pc.in
+@@ -1,7 +1,5 @@
+-prefix=@CMAKE_INSTALL_PREFIX@
+-exec_prefix=${prefix}
+-libdir=${exec_prefix}/@CMAKE_INSTALL_LIBDIR@
+-includedir=${prefix}/@CMAKE_INSTALL_INCLUDEDIR@
++libdir=@CMAKE_INSTALL_LIBDIR@
++includedir=@CMAKE_INSTALL_INCLUDEDIR@
+ 
+ Name: @CMAKE_PROJECT_NAME@
+ Description: Vulkan Loader