2 files changed, 4 insertions, 0 deletions
diff --git a/pkgs/development/libraries/audio/rtaudio/default.nix b/pkgs/development/libraries/audio/rtaudio/default.nix
index 1df696c0ec6..7f1e3d941a1 100644
--- a/pkgs/development/libraries/audio/rtaudio/default.nix
+++ b/pkgs/development/libraries/audio/rtaudio/default.nix
@@ -11,6 +11,8 @@ stdenv.mkDerivation rec {
     sha256 = "0jkqnhc2pq31nmq4daxhmqdjgv2qi4ib27hwms2r5zhnmvvzlr67";
   };
 
+  enableParallelBuilding = true;
+
   buildInputs = [ autoconf automake libtool libjack2 alsaLib rtmidi ];
 
   preConfigure = ''
diff --git a/pkgs/development/libraries/audio/rtmidi/default.nix b/pkgs/development/libraries/audio/rtmidi/default.nix
index 022c5504596..0f3f1fce42b 100644
--- a/pkgs/development/libraries/audio/rtmidi/default.nix
+++ b/pkgs/development/libraries/audio/rtmidi/default.nix
@@ -11,6 +11,8 @@ stdenv.mkDerivation rec {
     sha256 = "11pl45lp8sq5xkpipwk622w508nw0qcxr03ibicqn1lsws0hva96";
   };
 
+  enableParallelBuilding = true;
+
   nativeBuildInputs = [ pkgconfig ];
   buildInputs = [ autoconf automake libtool libjack2 alsaLib ];