From 8b6df34d8bf7a35e71672119dc9f2f0395a6a73d Mon Sep 17 00:00:00 2001
From: James Le Cuirot <chewi@gentoo.org>
Date: Sat, 3 Jun 2023 17:51:00 +0100
Subject: [PATCH] Allow forced disabling of features instead of relying on
 pkg-config

So-called "automagic" behaviour is considered unhelpful by
distributions. A user may unintentionally build Moonlight with VDPAU
support simply because they had that library installed, only for the
whole application to break when they uninstall the library later. This
could happen on any distribution, but it should especially be avoided on
source-based distributions, where the user would not expect the package
manager to encounter such issues.

This commit is best viewed without whitespace changes.
---
 app/app.pro | 94 +++++++++++++++++++++++++++++++++--------------------
 1 file changed, 58 insertions(+), 36 deletions(-)

diff --git a/app/app.pro b/app/app.pro
index 82d941e7..85f38dd4 100644
--- a/app/app.pro
+++ b/app/app.pro
@@ -65,51 +65,73 @@ unix:!macx {
     CONFIG += link_pkgconfig
     PKGCONFIG += openssl sdl2 SDL2_ttf opus
 
-    packagesExist(libavcodec) {
-        PKGCONFIG += libavcodec libavutil
-        CONFIG += ffmpeg
+    !disable-ffmpeg {
+        packagesExist(libavcodec) {
+            PKGCONFIG += libavcodec libavutil
+            CONFIG += ffmpeg
 
-        packagesExist(libva) {
-            packagesExist(libva-x11) {
-                CONFIG += libva-x11
+            !disable-libva {
+                packagesExist(libva) {
+                    !disable-x11 {
+                        packagesExist(libva-x11) {
+                            CONFIG += libva-x11
+                        }
+                    }
+                    !disable-wayland {
+                        packagesExist(libva-wayland) {
+                            CONFIG += libva-wayland
+                        }
+                    }
+                    !disable-libdrm {
+                        packagesExist(libva-drm) {
+                            CONFIG += libva-drm
+                        }
+                    }
+                    CONFIG += libva
+                }
             }
-            packagesExist(libva-wayland) {
-                CONFIG += libva-wayland
+
+            !disable-libvdpau {
+                packagesExist(vdpau) {
+                    CONFIG += libvdpau
+                }
             }
-            packagesExist(libva-drm) {
-                CONFIG += libva-drm
+
+            !disable-mmal {
+                packagesExist(mmal) {
+                    PKGCONFIG += mmal
+                    CONFIG += mmal
+                }
+            }
+
+            !disable-libdrm {
+                packagesExist(libdrm) {
+                    PKGCONFIG += libdrm
+                    CONFIG += libdrm
+                }
+            }
+
+            !disable-cuda {
+                packagesExist(ffnvcodec) {
+                    PKGCONFIG += ffnvcodec
+                    CONFIG += cuda
+                }
             }
-            CONFIG += libva
         }
 
-        packagesExist(vdpau) {
-            CONFIG += libvdpau
+        !disable-wayland {
+            packagesExist(wayland-client) {
+                CONFIG += wayland
+                PKGCONFIG += wayland-client
+            }
         }
 
-        packagesExist(mmal) {
-            PKGCONFIG += mmal
-            CONFIG += mmal
+        !disable-x11 {
+            packagesExist(x11) {
+                DEFINES += HAS_X11
+                PKGCONFIG += x11
+            }
         }
-
-        packagesExist(libdrm) {
-            PKGCONFIG += libdrm
-            CONFIG += libdrm
-        }
-
-        packagesExist(ffnvcodec) {
-            PKGCONFIG += ffnvcodec
-            CONFIG += cuda
-        }
-    }
-
-    packagesExist(wayland-client) {
-        CONFIG += wayland
-        PKGCONFIG += wayland-client
-    }
-
-    packagesExist(x11) {
-        DEFINES += HAS_X11
-        PKGCONFIG += x11
     }
 }
 win32 {