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-rw-r--r--pkgs/development/r-modules/generic-builder.nix3
1 files changed, 3 insertions, 0 deletions
diff --git a/pkgs/development/r-modules/generic-builder.nix b/pkgs/development/r-modules/generic-builder.nix
index 5939a425aefa9..ecbd78c4057d7 100644
--- a/pkgs/development/r-modules/generic-builder.nix
+++ b/pkgs/development/r-modules/generic-builder.nix
@@ -10,8 +10,11 @@ stdenv.mkDerivation ({
   env.NIX_CFLAGS_COMPILE =
     lib.optionalString stdenv.isDarwin "-I${lib.getDev libcxx}/include/c++/v1";
 
+  enableParallelBuilding = true;
+
   configurePhase = ''
     runHook preConfigure
+    export MAKEFLAGS+="''${enableParallelBuilding:+-j$NIX_BUILD_CORES}"
     export R_LIBS_SITE="$R_LIBS_SITE''${R_LIBS_SITE:+:}$out/library"
     runHook postConfigure
   '';