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-rw-r--r--pkgs/development/libraries/qwt/6_qt4.nix2
1 files changed, 2 insertions, 0 deletions
diff --git a/pkgs/development/libraries/qwt/6_qt4.nix b/pkgs/development/libraries/qwt/6_qt4.nix
index 7c037db0aed2..79b182b33b22 100644
--- a/pkgs/development/libraries/qwt/6_qt4.nix
+++ b/pkgs/development/libraries/qwt/6_qt4.nix
@@ -14,6 +14,8 @@ stdenv.mkDerivation rec {
 
   nativeBuildInputs = [ qmake4Hook ];
 
+  enableParallelBuilding = true;
+
   postPatch = ''
     sed -e "s|QWT_INSTALL_PREFIX.*=.*|QWT_INSTALL_PREFIX = $out|g" -i qwtconfig.pri
   '';