qimgv: 0.8.9 -> 0.9

https://github.com/easymodo/qimgv/compare/v0.8.9...v0.9

pkgs/applications/graphics/qimgv/default.nix

@@ -1,12 +1,14 @@
 { mkDerivation
 , lib
 , fetchFromGitHub
+, fetchpatch
 
 , cmake
 , pkgconfig
 
 , exiv2
 , mpv
+, opencv4
 , qtbase
 , qtimageformats
 , qtsvg
@@ -14,15 +16,25 @@
 
 mkDerivation rec {
   pname = "qimgv";
-  version = "0.8.9";
+  version = "0.9";
 
   src = fetchFromGitHub {
     owner = "easymodo";
     repo = pname;
     rev = "v${version}";
-    sha256 = "0cmya06j466v0pirhxbzbj1vbz0346y7rbc1gbv4n9xcp6c6bln6";
+    sha256 = "1yynjk47gjf2kjfb0ak4blxpb5irgqc1k59z726lwjd6gvg689fl";
   };
 
+  patches = [
+    # QtAtomicInt's `storeRelaxed` was introduced in Qt 5.14, while nixpkgs only
+    # has Qt 5.12. This appears to be the only instance of Qt 5.12
+    # incompatibility, and will be fixed in the next release.
+    (fetchpatch {
+      url = "https://github.com/easymodo/qimgv/commit/a39d6086ceb9445d2c16943e0719096a99920bf8.patch";
+      sha256 = "1z3ngv6i316hrdcdzig4jg6bcdbgfxjaxvm2jcfcw2dnfbfiq47s";
+    })
+  ];
+
   nativeBuildInputs = [
     cmake
     pkgconfig
@@ -31,6 +43,7 @@ mkDerivation rec {
   buildInputs = [
     exiv2
     mpv
+    opencv4
     qtbase
     qtimageformats
     qtsvg

pkgs/applications/graphics/qimgv/qt5-12-compat.diff

@@ -0,0 +1,13 @@
+diff --git a/qimgv/components/directorymanager/watchers/linux/linuxworker.cpp b/qimgv/components/directorymanager/watchers/linux/linuxworker.cpp
+index 96ec9d3..6d95d08 100644
+--- a/qimgv/components/directorymanager/watchers/linux/linuxworker.cpp
++++ b/qimgv/components/directorymanager/watchers/linux/linuxworker.cpp
+@@ -21,7 +21,7 @@ void LinuxWorker::setDescriptor(int desc) {
+ 
+ void LinuxWorker::run() {
+     emit started();
+-    isRunning.storeRelaxed(true);
++    isRunning.store(true);
+ 
+     if (fd == -1) {
+         qDebug() << TAG << "File descriptor isn't set! Stopping";