1 files changed, 6 insertions, 0 deletions
diff --git a/pkgs/development/libraries/mlt/qt-5.nix b/pkgs/development/libraries/mlt/qt-5.nix
index 35221c91aa7..f3bdc005247 100644
--- a/pkgs/development/libraries/mlt/qt-5.nix
+++ b/pkgs/development/libraries/mlt/qt-5.nix
@@ -3,6 +3,8 @@
 , fftw, vid-stab, opencv3, ladspa-sdk
 }:
 
+let inherit (stdenv.lib) getDev; in
+
 stdenv.mkDerivation rec {
   name = "mlt-${version}";
   version = "6.4.1";
@@ -39,6 +41,10 @@ stdenv.mkDerivation rec {
     "--enable-opengl"
   ];
 
+  # mlt is unable to cope with our multi-prefix Qt build
+  # because it does not use CMake or qmake.
+  NIX_CFLAGS_COMPILE = [ "-I${getDev qtsvg}/include/QtSvg" ];
+
   CXXFLAGS = "-std=c++11";
 
   enableParallelBuilding = true;