treewide: remove enableParallelBuilding = true if using cmake

63 files changed, 0 insertions, 117 deletions

diff --git a/pkgs/development/compilers/glslang/default.nix b/pkgs/development/compilers/glslang/default.nix
index b3364b185da9a..3b0084e3aeed0 100644
--- a/pkgs/development/compilers/glslang/default.nix
+++ b/pkgs/development/compilers/glslang/default.nix
@@ -54,7 +54,6 @@ stdenv.mkDerivation rec {
   };
 
   nativeBuildInputs = [ cmake python3 bison jq ];
-  enableParallelBuilding = true;
 
   postPatch = ''
     cp --no-preserve=mode -r "${localSpirv-tools.src}" External/spirv-tools
diff --git a/pkgs/development/compilers/julia/1.0.nix b/pkgs/development/compilers/julia/1.0.nix
index a98b69f50e9f4..0325632ad0ab9 100644
--- a/pkgs/development/compilers/julia/1.0.nix
+++ b/pkgs/development/compilers/julia/1.0.nix
@@ -171,8 +171,6 @@ stdenv.mkDerivation rec {
     openspecfun pcre2
   ]);
 
-  enableParallelBuilding = true;
-
   doCheck = !stdenv.isDarwin;
   checkTarget = "testall";
   # Julia's tests require read/write access to $HOME
diff --git a/pkgs/development/compilers/julia/1.3.nix b/pkgs/development/compilers/julia/1.3.nix
index 406ea73f2aed9..8096af0b320c2 100644
--- a/pkgs/development/compilers/julia/1.3.nix
+++ b/pkgs/development/compilers/julia/1.3.nix
@@ -119,8 +119,6 @@ stdenv.mkDerivation rec {
     openspecfun pcre2 lapack
   ];
 
-  enableParallelBuilding = true;
-
   # Other versions of Julia pass the tests, but we are not sure why these fail.
   doCheck = false;
   checkTarget = "testall";
diff --git a/pkgs/development/compilers/julia/1.5.nix b/pkgs/development/compilers/julia/1.5.nix
index 151cf83cecefe..be3cfc39635c7 100644
--- a/pkgs/development/compilers/julia/1.5.nix
+++ b/pkgs/development/compilers/julia/1.5.nix
@@ -119,8 +119,6 @@ stdenv.mkDerivation rec {
     openspecfun pcre2 lapack
   ];
 
-  enableParallelBuilding = true;
-
   # Julia's tests require read/write access to $HOME
   preCheck = ''
     export HOME="$NIX_BUILD_TOP"
diff --git a/pkgs/development/compilers/ldc/generic.nix b/pkgs/development/compilers/ldc/generic.nix
index 214d64cfa76bf..19dc140a7e172 100644
--- a/pkgs/development/compilers/ldc/generic.nix
+++ b/pkgs/development/compilers/ldc/generic.nix
@@ -18,8 +18,6 @@ stdenv.mkDerivation rec {
   pname = "ldc";
   inherit version;
 
-  enableParallelBuilding = true;
-
   src = fetchurl {
     url = "https://github.com/ldc-developers/ldc/releases/download/v${version}/ldc-${version}-src.tar.gz";
     sha256 = ldcSha256;
diff --git a/pkgs/development/compilers/llvm/10/clang/default.nix b/pkgs/development/compilers/llvm/10/clang/default.nix
index fef7720d726dc..d01d1a2a53d1c 100644
--- a/pkgs/development/compilers/llvm/10/clang/default.nix
+++ b/pkgs/development/compilers/llvm/10/clang/default.nix
@@ -82,8 +82,6 @@ let
       rm $out/bin/c-index-test
     '';
 
-    enableParallelBuilding = true;
-
     passthru = {
       isClang = true;
       inherit llvm;
diff --git a/pkgs/development/compilers/llvm/10/compiler-rt.nix b/pkgs/development/compilers/llvm/10/compiler-rt.nix
index e6882cbabb8b4..568bdff67c0ef 100644
--- a/pkgs/development/compilers/llvm/10/compiler-rt.nix
+++ b/pkgs/development/compilers/llvm/10/compiler-rt.nix
@@ -87,5 +87,4 @@ stdenv.mkDerivation rec {
     ln -s $out/lib/*/clang_rt.crtend_shared-*.o $out/lib/crtendS.o
   '';
 
-  enableParallelBuilding = true;
 }
diff --git a/pkgs/development/compilers/llvm/10/libc++/default.nix b/pkgs/development/compilers/llvm/10/libc++/default.nix
index 95711903932e8..ed1444a374b87 100644
--- a/pkgs/development/compilers/llvm/10/libc++/default.nix
+++ b/pkgs/development/compilers/llvm/10/libc++/default.nix
@@ -38,8 +38,6 @@ stdenv.mkDerivation {
       "-DLIBCXX_ENABLE_EXCEPTIONS=OFF"
     ] ++ stdenv.lib.optional (!enableShared) "-DLIBCXX_ENABLE_SHARED=OFF";
 
-  enableParallelBuilding = true;
-
   passthru = {
     isLLVM = true;
   };
diff --git a/pkgs/development/compilers/llvm/10/libunwind.nix b/pkgs/development/compilers/llvm/10/libunwind.nix
index b13bacb363801..77a2271048a7e 100644
--- a/pkgs/development/compilers/llvm/10/libunwind.nix
+++ b/pkgs/development/compilers/llvm/10/libunwind.nix
@@ -8,7 +8,5 @@ stdenv.mkDerivation rec {
 
   nativeBuildInputs = [ cmake ];
 
-  enableParallelBuilding = true;
-
   cmakeFlags = stdenv.lib.optional (!enableShared) "-DLIBUNWIND_ENABLE_SHARED=OFF";
 }
diff --git a/pkgs/development/compilers/llvm/10/lld.nix b/pkgs/development/compilers/llvm/10/lld.nix
index 5d513462820e7..a0cb9c117a8d5 100644
--- a/pkgs/development/compilers/llvm/10/lld.nix
+++ b/pkgs/development/compilers/llvm/10/lld.nix
@@ -17,8 +17,6 @@ stdenv.mkDerivation rec {
 
   outputs = [ "out" "dev" ];
 
-  enableParallelBuilding = true;
-
   postInstall = ''
     moveToOutput include "$dev"
     moveToOutput lib "$dev"
diff --git a/pkgs/development/compilers/llvm/10/lldb.nix b/pkgs/development/compilers/llvm/10/lldb.nix
index c728efeb2a9b2..fc5edadd0a407 100644
--- a/pkgs/development/compilers/llvm/10/lldb.nix
+++ b/pkgs/development/compilers/llvm/10/lldb.nix
@@ -59,8 +59,6 @@ stdenv.mkDerivation (rec {
     "-DSPHINX_OUTPUT_HTML=OFF"
   ];
 
-  enableParallelBuilding = true;
-
   postInstall = ''
     # Editor support
     # vscode:
diff --git a/pkgs/development/compilers/llvm/10/llvm.nix b/pkgs/development/compilers/llvm/10/llvm.nix
index 7394d4033d21e..7e6c7c0252671 100644
--- a/pkgs/development/compilers/llvm/10/llvm.nix
+++ b/pkgs/development/compilers/llvm/10/llvm.nix
@@ -154,8 +154,6 @@ in stdenv.mkDerivation (rec {
 
   checkTarget = "check-all";
 
-  enableParallelBuilding = true;
-
   requiredSystemFeatures = [ "big-parallel" ];
   meta = {
     description = "Collection of modular and reusable compiler and toolchain technologies";
diff --git a/pkgs/development/compilers/llvm/10/openmp.nix b/pkgs/development/compilers/llvm/10/openmp.nix
index 0927448d2b498..e3c1e66376a5a 100644
--- a/pkgs/development/compilers/llvm/10/openmp.nix
+++ b/pkgs/development/compilers/llvm/10/openmp.nix
@@ -15,8 +15,6 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [ cmake perl ];
   buildInputs = [ llvm ];
 
-  enableParallelBuilding = true;
-
   meta = {
     description = "Components required to build an executable OpenMP program";
     homepage    = "https://openmp.llvm.org/";
diff --git a/pkgs/development/compilers/llvm/11/clang/default.nix b/pkgs/development/compilers/llvm/11/clang/default.nix
index 2de5f65b4a136..aed5b66368f60 100644
--- a/pkgs/development/compilers/llvm/11/clang/default.nix
+++ b/pkgs/development/compilers/llvm/11/clang/default.nix
@@ -81,8 +81,6 @@ let
       rm $out/bin/c-index-test
     '';
 
-    enableParallelBuilding = true;
-
     passthru = {
       isClang = true;
       inherit llvm;
diff --git a/pkgs/development/compilers/llvm/11/compiler-rt.nix b/pkgs/development/compilers/llvm/11/compiler-rt.nix
index b8a5fcd5661cb..9a596e00e1b4c 100644
--- a/pkgs/development/compilers/llvm/11/compiler-rt.nix
+++ b/pkgs/development/compilers/llvm/11/compiler-rt.nix
@@ -86,5 +86,4 @@ stdenv.mkDerivation rec {
     ln -s $out/lib/*/clang_rt.crtend_shared-*.o $out/lib/crtendS.o
   '';
 
-  enableParallelBuilding = true;
 }
diff --git a/pkgs/development/compilers/llvm/11/libc++/default.nix b/pkgs/development/compilers/llvm/11/libc++/default.nix
index 1ce879cccb67a..bbc851c7f046c 100644
--- a/pkgs/development/compilers/llvm/11/libc++/default.nix
+++ b/pkgs/development/compilers/llvm/11/libc++/default.nix
@@ -35,8 +35,6 @@ stdenv.mkDerivation {
       "-DLIBCXX_ENABLE_EXCEPTIONS=OFF"
     ] ++ stdenv.lib.optional (!enableShared) "-DLIBCXX_ENABLE_SHARED=OFF";
 
-  enableParallelBuilding = true;
-
   passthru = {
     isLLVM = true;
   };
diff --git a/pkgs/development/compilers/llvm/11/libunwind.nix b/pkgs/development/compilers/llvm/11/libunwind.nix
index 5a4492e803f6c..a0b6221dc1277 100644
--- a/pkgs/development/compilers/llvm/11/libunwind.nix
+++ b/pkgs/development/compilers/llvm/11/libunwind.nix
@@ -8,7 +8,5 @@ stdenv.mkDerivation rec {
 
   nativeBuildInputs = [ cmake ];
 
-  enableParallelBuilding = true;
-
   cmakeFlags = stdenv.lib.optional (!enableShared) "-DLIBUNWIND_ENABLE_SHARED=OFF";
 }
diff --git a/pkgs/development/compilers/llvm/11/lld.nix b/pkgs/development/compilers/llvm/11/lld.nix
index 20eb87c548f6b..81b829a2898a0 100644
--- a/pkgs/development/compilers/llvm/11/lld.nix
+++ b/pkgs/development/compilers/llvm/11/lld.nix
@@ -17,8 +17,6 @@ stdenv.mkDerivation rec {
 
   outputs = [ "out" "dev" ];
 
-  enableParallelBuilding = true;
-
   postInstall = ''
     moveToOutput include "$dev"
     moveToOutput lib "$dev"
diff --git a/pkgs/development/compilers/llvm/11/lldb.nix b/pkgs/development/compilers/llvm/11/lldb.nix
index 0ae55d45349a0..0282037c092db 100644
--- a/pkgs/development/compilers/llvm/11/lldb.nix
+++ b/pkgs/development/compilers/llvm/11/lldb.nix
@@ -59,8 +59,6 @@ stdenv.mkDerivation (rec {
     "-DSPHINX_OUTPUT_HTML=OFF"
   ];
 
-  enableParallelBuilding = true;
-
   postInstall = ''
     # Editor support
     # vscode:
diff --git a/pkgs/development/compilers/llvm/11/llvm.nix b/pkgs/development/compilers/llvm/11/llvm.nix
index c2b70a149bf51..4ec4104b6fa80 100644
--- a/pkgs/development/compilers/llvm/11/llvm.nix
+++ b/pkgs/development/compilers/llvm/11/llvm.nix
@@ -156,8 +156,6 @@ in stdenv.mkDerivation (rec {
 
   checkTarget = "check-all";
 
-  enableParallelBuilding = true;
-
   requiredSystemFeatures = [ "big-parallel" ];
   meta = {
     description = "Collection of modular and reusable compiler and toolchain technologies";
diff --git a/pkgs/development/compilers/llvm/11/openmp.nix b/pkgs/development/compilers/llvm/11/openmp.nix
index 5fd6c62840db6..ae0ddcb176752 100644
--- a/pkgs/development/compilers/llvm/11/openmp.nix
+++ b/pkgs/development/compilers/llvm/11/openmp.nix
@@ -15,8 +15,6 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [ cmake perl ];
   buildInputs = [ llvm ];
 
-  enableParallelBuilding = true;
-
   meta = {
     description = "Components required to build an executable OpenMP program";
     homepage    = "https://openmp.llvm.org/";
diff --git a/pkgs/development/compilers/llvm/5/clang/default.nix b/pkgs/development/compilers/llvm/5/clang/default.nix
index b5e7b54fa5be9..a097e9167cde7 100644
--- a/pkgs/development/compilers/llvm/5/clang/default.nix
+++ b/pkgs/development/compilers/llvm/5/clang/default.nix
@@ -72,8 +72,6 @@ let
       rm $out/bin/c-index-test
     '';
 
-    enableParallelBuilding = true;
-
     passthru = {
       isClang = true;
       inherit llvm;
diff --git a/pkgs/development/compilers/llvm/5/compiler-rt.nix b/pkgs/development/compilers/llvm/5/compiler-rt.nix
index 41f2b24b057e7..e973be0a087a2 100644
--- a/pkgs/development/compilers/llvm/5/compiler-rt.nix
+++ b/pkgs/development/compilers/llvm/5/compiler-rt.nix
@@ -84,5 +84,4 @@ stdenv.mkDerivation {
     ln -s $out/lib/*/clang_rt.crtend_shared-*.o $out/lib/linux/crtendS.o
   '';
 
-  enableParallelBuilding = true;
 }
diff --git a/pkgs/development/compilers/llvm/5/libc++/default.nix b/pkgs/development/compilers/llvm/5/libc++/default.nix
index 9bebedbc04425..687a613e0748e 100644
--- a/pkgs/development/compilers/llvm/5/libc++/default.nix
+++ b/pkgs/development/compilers/llvm/5/libc++/default.nix
@@ -37,8 +37,6 @@ stdenv.mkDerivation {
     "-DLIBCXX_CXX_ABI=libcxxabi"
   ] ++ stdenv.lib.optional stdenv.hostPlatform.isMusl "-DLIBCXX_HAS_MUSL_LIBC=1";
 
-  enableParallelBuilding = true;
-
   passthru = {
     isLLVM = true;
   };
diff --git a/pkgs/development/compilers/llvm/5/lld.nix b/pkgs/development/compilers/llvm/5/lld.nix
index 3d9ed6ee66358..5f43f8235e10e 100644
--- a/pkgs/development/compilers/llvm/5/lld.nix
+++ b/pkgs/development/compilers/llvm/5/lld.nix
@@ -16,8 +16,6 @@ stdenv.mkDerivation {
 
   outputs = [ "out" "dev" ];
 
-  enableParallelBuilding = true;
-
   postInstall = ''
     moveToOutput include "$dev"
     moveToOutput lib "$dev"
diff --git a/pkgs/development/compilers/llvm/5/lldb.nix b/pkgs/development/compilers/llvm/5/lldb.nix
index e827f76231f11..258535a756692 100644
--- a/pkgs/development/compilers/llvm/5/lldb.nix
+++ b/pkgs/development/compilers/llvm/5/lldb.nix
@@ -51,8 +51,6 @@ stdenv.mkDerivation {
     "-DLLDB_CODESIGN_IDENTITY=" # codesigning makes nondeterministic
   ];
 
-  enableParallelBuilding = true;
-
   postInstall = ''
     mkdir -p $out/share/man/man1
     cp ../docs/lldb.1 $out/share/man/man1/
diff --git a/pkgs/development/compilers/llvm/5/llvm.nix b/pkgs/development/compilers/llvm/5/llvm.nix
index 987e6258527ac..2c2867c99373d 100644
--- a/pkgs/development/compilers/llvm/5/llvm.nix
+++ b/pkgs/development/compilers/llvm/5/llvm.nix
@@ -146,8 +146,6 @@ stdenv.mkDerivation ({
 
   checkTarget = "check-all";
 
-  enableParallelBuilding = true;
-
   requiredSystemFeatures = [ "big-parallel" ];
   meta = {
     description = "Collection of modular and reusable compiler and toolchain technologies";
diff --git a/pkgs/development/compilers/llvm/5/openmp.nix b/pkgs/development/compilers/llvm/5/openmp.nix
index da328de24d137..452f5a3cfe5b6 100644
--- a/pkgs/development/compilers/llvm/5/openmp.nix
+++ b/pkgs/development/compilers/llvm/5/openmp.nix
@@ -15,8 +15,6 @@ stdenv.mkDerivation {
   nativeBuildInputs = [ cmake perl ];
   buildInputs = [ llvm ];
 
-  enableParallelBuilding = true;
-
   meta = {
     description = "Components required to build an executable OpenMP program";
     homepage    = "https://openmp.llvm.org/";
diff --git a/pkgs/development/compilers/llvm/6/clang/default.nix b/pkgs/development/compilers/llvm/6/clang/default.nix
index ec3effebfd77c..63a79ffba8ab2 100644
--- a/pkgs/development/compilers/llvm/6/clang/default.nix
+++ b/pkgs/development/compilers/llvm/6/clang/default.nix
@@ -72,8 +72,6 @@ let
       rm $out/bin/c-index-test
     '';
 
-    enableParallelBuilding = true;
-
     passthru = {
       isClang = true;
       inherit llvm;
diff --git a/pkgs/development/compilers/llvm/6/compiler-rt.nix b/pkgs/development/compilers/llvm/6/compiler-rt.nix
index 8bd61f5d7f701..df61824e908d7 100644
--- a/pkgs/development/compilers/llvm/6/compiler-rt.nix
+++ b/pkgs/development/compilers/llvm/6/compiler-rt.nix
@@ -86,5 +86,4 @@ stdenv.mkDerivation {
     ln -s $out/lib/*/clang_rt.crtend_shared-*.o $out/lib/linux/crtendS.o
   '';
 
-  enableParallelBuilding = true;
 }
diff --git a/pkgs/development/compilers/llvm/6/libc++/default.nix b/pkgs/development/compilers/llvm/6/libc++/default.nix
index 727a322608728..129d06fe515c1 100644
--- a/pkgs/development/compilers/llvm/6/libc++/default.nix
+++ b/pkgs/development/compilers/llvm/6/libc++/default.nix
@@ -37,8 +37,6 @@ stdenv.mkDerivation {
     "-DLIBCXX_CXX_ABI=libcxxabi"
   ] ++ stdenv.lib.optional stdenv.hostPlatform.isMusl "-DLIBCXX_HAS_MUSL_LIBC=1";
 
-  enableParallelBuilding = true;
-
   passthru = {
     isLLVM = true;
   };
diff --git a/pkgs/development/compilers/llvm/6/lld.nix b/pkgs/development/compilers/llvm/6/lld.nix
index 81b94df311940..da1acf3f5f3bf 100644
--- a/pkgs/development/compilers/llvm/6/lld.nix
+++ b/pkgs/development/compilers/llvm/6/lld.nix
@@ -17,8 +17,6 @@ stdenv.mkDerivation {
 
   outputs = [ "out" "dev" ];
 
-  enableParallelBuilding = true;
-
   postInstall = ''
     moveToOutput include "$dev"
     moveToOutput lib "$dev"
diff --git a/pkgs/development/compilers/llvm/6/lldb.nix b/pkgs/development/compilers/llvm/6/lldb.nix
index 629749e10f3c4..0a1386185740e 100644
--- a/pkgs/development/compilers/llvm/6/lldb.nix
+++ b/pkgs/development/compilers/llvm/6/lldb.nix
@@ -51,8 +51,6 @@ stdenv.mkDerivation {
     "-DLLDB_CODESIGN_IDENTITY=" # codesigning makes nondeterministic
   ];
 
-  enableParallelBuilding = true;
-
   postInstall = ''
     mkdir -p $out/share/man/man1
     cp ../docs/lldb.1 $out/share/man/man1/
diff --git a/pkgs/development/compilers/llvm/6/llvm.nix b/pkgs/development/compilers/llvm/6/llvm.nix
index 22dbb75d2d501..07aaf1e921804 100644
--- a/pkgs/development/compilers/llvm/6/llvm.nix
+++ b/pkgs/development/compilers/llvm/6/llvm.nix
@@ -145,8 +145,6 @@ stdenv.mkDerivation ({
 
   checkTarget = "check-all";
 
-  enableParallelBuilding = true;
-
   requiredSystemFeatures = [ "big-parallel" ];
   meta = {
     description = "Collection of modular and reusable compiler and toolchain technologies";
diff --git a/pkgs/development/compilers/llvm/6/openmp.nix b/pkgs/development/compilers/llvm/6/openmp.nix
index c1a4480a5524c..d6b00bb01ae06 100644
--- a/pkgs/development/compilers/llvm/6/openmp.nix
+++ b/pkgs/development/compilers/llvm/6/openmp.nix
@@ -15,8 +15,6 @@ stdenv.mkDerivation {
   nativeBuildInputs = [ cmake perl ];
   buildInputs = [ llvm ];
 
-  enableParallelBuilding = true;
-
   meta = {
     description = "Components required to build an executable OpenMP program";
     homepage    = "https://openmp.llvm.org/";
diff --git a/pkgs/development/compilers/llvm/7/clang/default.nix b/pkgs/development/compilers/llvm/7/clang/default.nix
index 969938681fe92..0b1fdd53de9af 100644
--- a/pkgs/development/compilers/llvm/7/clang/default.nix
+++ b/pkgs/development/compilers/llvm/7/clang/default.nix
@@ -83,8 +83,6 @@ let
       rm $out/bin/c-index-test
     '';
 
-    enableParallelBuilding = true;
-
     passthru = {
       isClang = true;
       inherit llvm;
diff --git a/pkgs/development/compilers/llvm/7/compiler-rt.nix b/pkgs/development/compilers/llvm/7/compiler-rt.nix
index ec9b7e6e6ad47..bae9cf5fa0ed5 100644
--- a/pkgs/development/compilers/llvm/7/compiler-rt.nix
+++ b/pkgs/development/compilers/llvm/7/compiler-rt.nix
@@ -89,5 +89,4 @@ stdenv.mkDerivation {
     ln -s $out/lib/*/clang_rt.crtend_shared-*.o $out/lib/linux/crtendS.o
   '';
 
-  enableParallelBuilding = true;
 }
diff --git a/pkgs/development/compilers/llvm/7/libc++/default.nix b/pkgs/development/compilers/llvm/7/libc++/default.nix
index 76baadf1c6e97..126671d0fbdf0 100644
--- a/pkgs/development/compilers/llvm/7/libc++/default.nix
+++ b/pkgs/development/compilers/llvm/7/libc++/default.nix
@@ -38,8 +38,6 @@ stdenv.mkDerivation {
   ] ++ stdenv.lib.optional stdenv.hostPlatform.isMusl "-DLIBCXX_HAS_MUSL_LIBC=1"
   ++ stdenv.lib.optional (!enableShared) "-DLIBCXX_ENABLE_SHARED=OFF" ;
 
-  enableParallelBuilding = true;
-
   passthru = {
     isLLVM = true;
   };
diff --git a/pkgs/development/compilers/llvm/7/lld.nix b/pkgs/development/compilers/llvm/7/lld.nix
index bee9202ed6c18..5e0568b6a0936 100644
--- a/pkgs/development/compilers/llvm/7/lld.nix
+++ b/pkgs/development/compilers/llvm/7/lld.nix
@@ -17,8 +17,6 @@ stdenv.mkDerivation {
 
   outputs = [ "out" "dev" ];
 
-  enableParallelBuilding = true;
-
   postInstall = ''
     moveToOutput include "$dev"
     moveToOutput lib "$dev"
diff --git a/pkgs/development/compilers/llvm/7/lldb.nix b/pkgs/development/compilers/llvm/7/lldb.nix
index 8fadd3cf7849e..d1508c46d0c2c 100644
--- a/pkgs/development/compilers/llvm/7/lldb.nix
+++ b/pkgs/development/compilers/llvm/7/lldb.nix
@@ -52,8 +52,6 @@ stdenv.mkDerivation {
 
   NIX_CFLAGS_COMPILE = stdenv.lib.optionalString stdenv.cc.isClang "-I${libxml2.dev}/include/libxml2";
 
-  enableParallelBuilding = true;
-
   postInstall = ''
     mkdir -p $out/share/man/man1
     cp ../docs/lldb.1 $out/share/man/man1/
diff --git a/pkgs/development/compilers/llvm/7/llvm.nix b/pkgs/development/compilers/llvm/7/llvm.nix
index dc57d0d6bd5c3..69114c7ca23fb 100644
--- a/pkgs/development/compilers/llvm/7/llvm.nix
+++ b/pkgs/development/compilers/llvm/7/llvm.nix
@@ -167,8 +167,6 @@ in stdenv.mkDerivation ({
 
   checkTarget = "check-all";
 
-  enableParallelBuilding = true;
-
   requiredSystemFeatures = [ "big-parallel" ];
   meta = {
     description = "Collection of modular and reusable compiler and toolchain technologies";
diff --git a/pkgs/development/compilers/llvm/7/openmp.nix b/pkgs/development/compilers/llvm/7/openmp.nix
index 898d49dce834e..e36b236fd0214 100644
--- a/pkgs/development/compilers/llvm/7/openmp.nix
+++ b/pkgs/development/compilers/llvm/7/openmp.nix
@@ -15,8 +15,6 @@ stdenv.mkDerivation {
   nativeBuildInputs = [ cmake perl ];
   buildInputs = [ llvm ];
 
-  enableParallelBuilding = true;
-
   meta = {
     description = "Components required to build an executable OpenMP program";
     homepage    = "https://openmp.llvm.org/";
diff --git a/pkgs/development/compilers/llvm/8/clang/default.nix b/pkgs/development/compilers/llvm/8/clang/default.nix
index 5c1dca5e33b18..0c00ce6271532 100644
--- a/pkgs/development/compilers/llvm/8/clang/default.nix
+++ b/pkgs/development/compilers/llvm/8/clang/default.nix
@@ -93,8 +93,6 @@ let
       rm $out/bin/c-index-test
     '';
 
-    enableParallelBuilding = true;
-
     passthru = {
       isClang = true;
       inherit llvm;
diff --git a/pkgs/development/compilers/llvm/8/compiler-rt.nix b/pkgs/development/compilers/llvm/8/compiler-rt.nix
index 3c6265c4fca07..280204c6e3531 100644
--- a/pkgs/development/compilers/llvm/8/compiler-rt.nix
+++ b/pkgs/development/compilers/llvm/8/compiler-rt.nix
@@ -87,5 +87,4 @@ stdenv.mkDerivation {
     ln -s $out/lib/*/clang_rt.crtend_shared-*.o $out/lib/crtendS.o
   '';
 
-  enableParallelBuilding = true;
 }
diff --git a/pkgs/development/compilers/llvm/8/libc++/default.nix b/pkgs/development/compilers/llvm/8/libc++/default.nix
index 01e0d8e008cb8..31853e5f91aac 100644
--- a/pkgs/development/compilers/llvm/8/libc++/default.nix
+++ b/pkgs/development/compilers/llvm/8/libc++/default.nix
@@ -42,8 +42,6 @@ stdenv.mkDerivation {
       "-DLIBCXX_ENABLE_EXCEPTIONS=OFF"
     ] ++ stdenv.lib.optional (!enableShared) "-DLIBCXX_ENABLE_SHARED=OFF";
 
-  enableParallelBuilding = true;
-
   passthru = {
     isLLVM = true;
   };
diff --git a/pkgs/development/compilers/llvm/8/libunwind.nix b/pkgs/development/compilers/llvm/8/libunwind.nix
index 646cd3c3ca4a7..d384a6f342afb 100644
--- a/pkgs/development/compilers/llvm/8/libunwind.nix
+++ b/pkgs/development/compilers/llvm/8/libunwind.nix
@@ -19,7 +19,5 @@ stdenv.mkDerivation {
     })
   ];
 
-  enableParallelBuilding = true;
-
   cmakeFlags = stdenv.lib.optional (!enableShared) "-DLIBUNWIND_ENABLE_SHARED=OFF";
 }
diff --git a/pkgs/development/compilers/llvm/8/lld.nix b/pkgs/development/compilers/llvm/8/lld.nix
index ba9cf3c57d773..f890591b3775d 100644
--- a/pkgs/development/compilers/llvm/8/lld.nix
+++ b/pkgs/development/compilers/llvm/8/lld.nix
@@ -17,8 +17,6 @@ stdenv.mkDerivation {
 
   outputs = [ "out" "dev" ];
 
-  enableParallelBuilding = true;
-
   postInstall = ''
     moveToOutput include "$dev"
     moveToOutput lib "$dev"
diff --git a/pkgs/development/compilers/llvm/8/lldb.nix b/pkgs/development/compilers/llvm/8/lldb.nix
index 298ce737fc73e..a22d27f9b2971 100644
--- a/pkgs/development/compilers/llvm/8/lldb.nix
+++ b/pkgs/development/compilers/llvm/8/lldb.nix
@@ -41,8 +41,6 @@ stdenv.mkDerivation {
     "-DLLDB_CODESIGN_IDENTITY=" # codesigning makes nondeterministic
   ];
 
-  enableParallelBuilding = true;
-
   postInstall = ''
     mkdir -p $out/share/man/man1
     cp ../docs/lldb.1 $out/share/man/man1/
diff --git a/pkgs/development/compilers/llvm/8/llvm.nix b/pkgs/development/compilers/llvm/8/llvm.nix
index fb928b67ad54e..e3ca31313ce45 100644
--- a/pkgs/development/compilers/llvm/8/llvm.nix
+++ b/pkgs/development/compilers/llvm/8/llvm.nix
@@ -151,8 +151,6 @@ in stdenv.mkDerivation ({
 
   checkTarget = "check-all";
 
-  enableParallelBuilding = true;
-
   requiredSystemFeatures = [ "big-parallel" ];
   meta = {
     description = "Collection of modular and reusable compiler and toolchain technologies";
diff --git a/pkgs/development/compilers/llvm/8/openmp.nix b/pkgs/development/compilers/llvm/8/openmp.nix
index 42cc7adf4f00d..4eb43600dd697 100644
--- a/pkgs/development/compilers/llvm/8/openmp.nix
+++ b/pkgs/development/compilers/llvm/8/openmp.nix
@@ -15,8 +15,6 @@ stdenv.mkDerivation {
   nativeBuildInputs = [ cmake perl ];
   buildInputs = [ llvm ];
 
-  enableParallelBuilding = true;
-
   meta = {
     description = "Components required to build an executable OpenMP program";
     homepage    = "https://openmp.llvm.org/";
diff --git a/pkgs/development/compilers/llvm/9/clang/default.nix b/pkgs/development/compilers/llvm/9/clang/default.nix
index cfaee05944caf..b880d843d5983 100644
--- a/pkgs/development/compilers/llvm/9/clang/default.nix
+++ b/pkgs/development/compilers/llvm/9/clang/default.nix
@@ -88,8 +88,6 @@ let
       rm $out/bin/c-index-test
     '';
 
-    enableParallelBuilding = true;
-
     passthru = {
       isClang = true;
       inherit llvm;
diff --git a/pkgs/development/compilers/llvm/9/compiler-rt.nix b/pkgs/development/compilers/llvm/9/compiler-rt.nix
index 13b0b522771f4..709d0c1347762 100644
--- a/pkgs/development/compilers/llvm/9/compiler-rt.nix
+++ b/pkgs/development/compilers/llvm/9/compiler-rt.nix
@@ -85,6 +85,4 @@ stdenv.mkDerivation rec {
     ln -s $out/lib/*/clang_rt.crtbegin_shared-*.o $out/lib/crtbeginS.o
     ln -s $out/lib/*/clang_rt.crtend_shared-*.o $out/lib/crtendS.o
   '';
-
-  enableParallelBuilding = true;
 }
diff --git a/pkgs/development/compilers/llvm/9/libc++/default.nix b/pkgs/development/compilers/llvm/9/libc++/default.nix
index c9f0e6254ab46..23265ed0d3518 100644
--- a/pkgs/development/compilers/llvm/9/libc++/default.nix
+++ b/pkgs/development/compilers/llvm/9/libc++/default.nix
@@ -38,8 +38,6 @@ stdenv.mkDerivation {
       "-DLIBCXX_ENABLE_EXCEPTIONS=OFF"
     ] ++ stdenv.lib.optional (!enableShared) "-DLIBCXX_ENABLE_SHARED=OFF";
 
-  enableParallelBuilding = true;
-
   passthru = {
     isLLVM = true;
   };
diff --git a/pkgs/development/compilers/llvm/9/libunwind.nix b/pkgs/development/compilers/llvm/9/libunwind.nix
index 883c36baf0627..0226d917e0be7 100644
--- a/pkgs/development/compilers/llvm/9/libunwind.nix
+++ b/pkgs/development/compilers/llvm/9/libunwind.nix
@@ -8,7 +8,5 @@ stdenv.mkDerivation rec {
 
   nativeBuildInputs = [ cmake ];
 
-  enableParallelBuilding = true;
-
   cmakeFlags = stdenv.lib.optional (!enableShared) "-DLIBUNWIND_ENABLE_SHARED=OFF";
 }
diff --git a/pkgs/development/compilers/llvm/9/lld.nix b/pkgs/development/compilers/llvm/9/lld.nix
index 488870e729a52..a2b17a97cdc75 100644
--- a/pkgs/development/compilers/llvm/9/lld.nix
+++ b/pkgs/development/compilers/llvm/9/lld.nix
@@ -17,8 +17,6 @@ stdenv.mkDerivation rec {
 
   outputs = [ "out" "dev" ];
 
-  enableParallelBuilding = true;
-
   postInstall = ''
     moveToOutput include "$dev"
     moveToOutput lib "$dev"
diff --git a/pkgs/development/compilers/llvm/9/lldb.nix b/pkgs/development/compilers/llvm/9/lldb.nix
index a8e193c27b173..9c43287b166cc 100644
--- a/pkgs/development/compilers/llvm/9/lldb.nix
+++ b/pkgs/development/compilers/llvm/9/lldb.nix
@@ -49,8 +49,6 @@ stdenv.mkDerivation rec {
     "-DLLVM_EXTERNAL_LIT=${lit}/bin/lit"
   ];
 
-  enableParallelBuilding = true;
-
   postInstall = ''
     # man page
     mkdir -p $out/share/man/man1
diff --git a/pkgs/development/compilers/llvm/9/llvm.nix b/pkgs/development/compilers/llvm/9/llvm.nix
index 013e5bb36b947..c46e54debe91b 100644
--- a/pkgs/development/compilers/llvm/9/llvm.nix
+++ b/pkgs/development/compilers/llvm/9/llvm.nix
@@ -159,8 +159,6 @@ in stdenv.mkDerivation (rec {
 
   checkTarget = "check-all";
 
-  enableParallelBuilding = true;
-
   requiredSystemFeatures = [ "big-parallel" ];
   meta = {
     description = "Collection of modular and reusable compiler and toolchain technologies";
diff --git a/pkgs/development/compilers/llvm/9/openmp.nix b/pkgs/development/compilers/llvm/9/openmp.nix
index 84f898ec06a13..9fdcf9e6cff76 100644
--- a/pkgs/development/compilers/llvm/9/openmp.nix
+++ b/pkgs/development/compilers/llvm/9/openmp.nix
@@ -15,8 +15,6 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [ cmake perl ];
   buildInputs = [ llvm ];
 
-  enableParallelBuilding = true;
-
   meta = {
     description = "Components required to build an executable OpenMP program";
     homepage    = "https://openmp.llvm.org/";
diff --git a/pkgs/development/compilers/lobster/default.nix b/pkgs/development/compilers/lobster/default.nix
index b87bec7ea2d92..728049448e666 100644
--- a/pkgs/development/compilers/lobster/default.nix
+++ b/pkgs/development/compilers/lobster/default.nix
@@ -45,7 +45,6 @@ stdenv.mkDerivation rec {
     ];
 
   preConfigure = "cd dev";
-  enableParallelBuilding = true;
 
   passthru = {
     tests.can-run-hello-world = callPackage ./test-can-run-hello-world.nix {};
diff --git a/pkgs/development/compilers/mono/llvm.nix b/pkgs/development/compilers/mono/llvm.nix
index 71405f30d5ceb..0a0f232227d80 100644
--- a/pkgs/development/compilers/mono/llvm.nix
+++ b/pkgs/development/compilers/mono/llvm.nix
@@ -41,8 +41,6 @@ stdenv.mkDerivation {
     "-DLLVM_BINUTILS_INCDIR=${libbfd.dev}/include"
   ] ++ stdenv.lib.optional (!isDarwin) "-DBUILD_SHARED_LIBS=ON";
 
-  enableParallelBuilding = true;
-
   meta = {
     description = "Collection of modular and reusable compiler and toolchain technologies - Mono build";
     homepage    = "http://llvm.org/";
diff --git a/pkgs/development/compilers/nextpnr/default.nix b/pkgs/development/compilers/nextpnr/default.nix
index 664ceb79636fa..3e33842432d04 100644
--- a/pkgs/development/compilers/nextpnr/default.nix
+++ b/pkgs/development/compilers/nextpnr/default.nix
@@ -43,7 +43,6 @@ with stdenv; mkDerivation rec {
     ++ (lib.optional enableGui qtbase)
     ++ (lib.optional stdenv.cc.isClang llvmPackages.openmp);
 
-  enableParallelBuilding = true;
   cmakeFlags =
     [ "-DCURRENT_GIT_VERSION=${lib.substring 0 7 (lib.elemAt srcs 0).rev}"
       "-DARCH=generic;ice40;ecp5"
diff --git a/pkgs/development/compilers/ponyc/default.nix b/pkgs/development/compilers/ponyc/default.nix
index f9e4ad742cf33..df80fe2fdb649 100644
--- a/pkgs/development/compilers/ponyc/default.nix
+++ b/pkgs/development/compilers/ponyc/default.nix
@@ -83,8 +83,6 @@ stdenv.mkDerivation (rec {
     ++ stdenv.lib.optionals stdenv.isDarwin [ "bits=64" ]
     ++ stdenv.lib.optionals (stdenv.isDarwin && (!lto)) [ "lto=no" ];
 
-  enableParallelBuilding = true;
-
   doCheck = true;
 
   NIX_CFLAGS_COMPILE = [ "-Wno-error=redundant-move" "-Wno-error=implicit-fallthrough" ];
diff --git a/pkgs/development/compilers/squeak/default.nix b/pkgs/development/compilers/squeak/default.nix
index 4687ce86a90aa..e94ebab50e650 100644
--- a/pkgs/development/compilers/squeak/default.nix
+++ b/pkgs/development/compilers/squeak/default.nix
@@ -25,8 +25,6 @@ stdenv.mkDerivation rec {
     unix/cmake/configure --prefix=$out --enable-mpg-{mmx,pthreads}
   '';
 
-  enableParallelBuilding = true;
-
   hardeningDisable = [ "format" ];
 
   meta = with stdenv.lib; {