nifskope: fix aarch64 build

https://hydra.nixos.org/build/109694386

pkgs/tools/graphics/nifskope/default.nix

@@ -23,7 +23,7 @@ stdenv.mkDerivation {
       url = "https://github.com/niftools/nifskope/commit/30954e7f01f3d779a2a1fd37d363e8a6ad560bd3.patch";
       sha256 = "0d6xjj2mjjhdd7w1aig5f75jksjni16jyj0lxsz51pys6xqb6fpj";
     })
-  ];
+  ] ++ (stdenv.lib.optional stdenv.isAarch64 ./no-sse-on-arm.patch);
 
   buildInputs = [ qtbase qttools libGLU.dev ];
   nativeBuildInputs = [ qmake wrapQtAppsHook ];

pkgs/tools/graphics/nifskope/no-sse-on-arm.patch

@@ -0,0 +1,19 @@
+diff --git a/NifSkope.pro b/NifSkope.pro
+index cc29fc5..b17bb6e 100644
+--- a/NifSkope.pro
++++ b/NifSkope.pro
+@@ -428,13 +428,10 @@ win32 {
+ 	#  Optimization flags
+ 	QMAKE_CXXFLAGS_DEBUG -= -O0 -g
+ 	QMAKE_CXXFLAGS_DEBUG *= -Og -g3
+-	QMAKE_CXXFLAGS_RELEASE *= -O3 -mfpmath=sse
++	QMAKE_CXXFLAGS_RELEASE *= -O3
+ 
+ 	# C++11 Support
+ 	QMAKE_CXXFLAGS_RELEASE *= -std=c++14
+-
+-	#  Extension flags
+-	QMAKE_CXXFLAGS_RELEASE *= -msse2 -msse
+ }
+ 
+ win32 {