treewide: remove redundant quotes

70 files changed, 212 insertions, 212 deletions

diff --git a/pkgs/development/androidndk-pkgs/androidndk-pkgs.nix b/pkgs/development/androidndk-pkgs/androidndk-pkgs.nix
index fcdd2eb51811..02aa6567c1a9 100644
--- a/pkgs/development/androidndk-pkgs/androidndk-pkgs.nix
+++ b/pkgs/development/androidndk-pkgs/androidndk-pkgs.nix
@@ -12,31 +12,31 @@ let
   # than we do. We don't just use theirs because ours are less ambiguous and
   # some builds need that clarity.
   ndkInfoFun = { config, ... }: {
-    "x86_64-apple-darwin" = {
+    x86_64-apple-darwin = {
       double = "darwin-x86_64";
     };
-    "x86_64-unknown-linux-gnu" = {
+    x86_64-unknown-linux-gnu = {
       double = "linux-x86_64";
     };
-    "i686-unknown-linux-android" = {
+    i686-unknown-linux-android = {
       triple = "i686-linux-android";
       arch = "x86";
       toolchain = "x86";
       gccVer = "4.9";
     };
-    "x86_64-unknown-linux-android" = {
+    x86_64-unknown-linux-android = {
       triple = "x86_64-linux-android";
       arch = "x86_64";
       toolchain = "x86_64";
       gccVer = "4.9";
     };
-    "armv7a-unknown-linux-androideabi" = {
+    armv7a-unknown-linux-androideabi = {
       arch = "arm";
       triple = "arm-linux-androideabi";
       toolchain = "arm-linux-androideabi";
       gccVer = "4.9";
     };
-    "aarch64-unknown-linux-android" = {
+    aarch64-unknown-linux-android = {
       arch = "arm64";
       triple = "aarch64-linux-android";
       toolchain = "aarch64-linux-android";
diff --git a/pkgs/development/compilers/binaryen/default.nix b/pkgs/development/compilers/binaryen/default.nix
index c0e6c4b50044..664335c3dade 100644
--- a/pkgs/development/compilers/binaryen/default.nix
+++ b/pkgs/development/compilers/binaryen/default.nix
@@ -5,7 +5,7 @@ let
 
   # Map from git revs to SHA256 hashes
   sha256s = {
-    "version_89" = "0rh1dq33ilq54szfgi1ajaiaj7rbylai02rhp9zm9vpwp0rw8mij";
+    version_89 = "0rh1dq33ilq54szfgi1ajaiaj7rbylai02rhp9zm9vpwp0rw8mij";
     "1.38.28" = "172s7y5f38736ic8ri3mnbdqcrkadd40a26cxcfwbscc53phl11v";
   };
 in
diff --git a/pkgs/development/compilers/ccl/default.nix b/pkgs/development/compilers/ccl/default.nix
index 6fac183125f5..ec166352267e 100644
--- a/pkgs/development/compilers/ccl/default.nix
+++ b/pkgs/development/compilers/ccl/default.nix
@@ -29,7 +29,7 @@ let
     };
     armv6l-linux = armv7l-linux;
   };
-  cfg = options."${stdenv.hostPlatform.system}" or (throw "missing source url for platform ${stdenv.hostPlatform.system}");
+  cfg = options.${stdenv.hostPlatform.system} or (throw "missing source url for platform ${stdenv.hostPlatform.system}");
 in
 
 stdenv.mkDerivation rec {
diff --git a/pkgs/development/compilers/crystal/default.nix b/pkgs/development/compilers/crystal/default.nix
index 90355896064c..d698a6e39fea 100644
--- a/pkgs/development/compilers/crystal/default.nix
+++ b/pkgs/development/compilers/crystal/default.nix
@@ -12,12 +12,12 @@
 
 let
   archs = {
-    "x86_64-linux"  = "linux-x86_64";
-    "i686-linux"    = "linux-i686";
-    "x86_64-darwin" = "darwin-x86_64";
+    x86_64-linux  = "linux-x86_64";
+    i686-linux    = "linux-i686";
+    x86_64-darwin = "darwin-x86_64";
   };
 
-  arch = archs."${stdenv.system}" or (throw "system ${stdenv.system} not supported");
+  arch = archs.${stdenv.system} or (throw "system ${stdenv.system} not supported");
 
   checkInputs = [ git gmp openssl readline libxml2 libyaml ];
 
@@ -28,7 +28,7 @@ let
 
     src = fetchurl {
       url = "https://github.com/crystal-lang/crystal/releases/download/${version}/crystal-${version}-${toString rel}-${arch}.tar.gz";
-      sha256 = sha256s."${stdenv.system}";
+      sha256 = sha256s.${stdenv.system};
     };
 
     buildCommand = ''
@@ -148,27 +148,27 @@ in rec {
   binaryCrystal_0_26 = genericBinary {
     version = "0.26.1";
     sha256s = {
-      "x86_64-linux"  = "1xban102yiiwmlklxvn3xp3q546bp8hlxxpakayajkhhnpl6yv45";
-      "i686-linux"    = "1igspf1lrv7wpmz0pfrkbx8m1ykvnv4zhic53cav4nicppm2v0ic";
-      "x86_64-darwin" = "1mri8bfrcldl69gczxpihxpv1shn4bijx28m3qby8vnk0ii63n9s";
+      x86_64-linux  = "1xban102yiiwmlklxvn3xp3q546bp8hlxxpakayajkhhnpl6yv45";
+      i686-linux    = "1igspf1lrv7wpmz0pfrkbx8m1ykvnv4zhic53cav4nicppm2v0ic";
+      x86_64-darwin = "1mri8bfrcldl69gczxpihxpv1shn4bijx28m3qby8vnk0ii63n9s";
     };
   };
 
   binaryCrystal_0_27 = genericBinary {
     version = "0.27.2";
     sha256s = {
-      "x86_64-linux"  = "05l5x7kx2acgnv42fj3rr17z73ix06zvi05h7d7vf3kw0izxrasm";
-      "i686-linux"    = "1iwizkvn6pglc0azkyfhlmk9ap793krdgcnbihd1kvrvs4cz0mm9";
-      "x86_64-darwin" = "14c69ac2dmfwmb5q56ps3xyxxb0mrbc91ahk9h07c8fiqfii3k9g";
+      x86_64-linux  = "05l5x7kx2acgnv42fj3rr17z73ix06zvi05h7d7vf3kw0izxrasm";
+      i686-linux    = "1iwizkvn6pglc0azkyfhlmk9ap793krdgcnbihd1kvrvs4cz0mm9";
+      x86_64-darwin = "14c69ac2dmfwmb5q56ps3xyxxb0mrbc91ahk9h07c8fiqfii3k9g";
     };
   };
 
   binaryCrystal_0_29 = genericBinary {
     version = "0.29.0";
     sha256s = {
-      "x86_64-linux"  = "1wrk29sfx35akg7hxwpdiikvl18wd40gq1kwirw7x522hnq7vlna";
-      "i686-linux"    = "1nx0piis2k3nn7kqiijqazzbvlaavhgvsln0l3dxmpfa4i4dz5h2";
-      "x86_64-darwin" = "1fd0fbyf05abivnp3igjlrm2axf65n2wdmg4aq6nqj60ipc01rvd";
+      x86_64-linux  = "1wrk29sfx35akg7hxwpdiikvl18wd40gq1kwirw7x522hnq7vlna";
+      i686-linux    = "1nx0piis2k3nn7kqiijqazzbvlaavhgvsln0l3dxmpfa4i4dz5h2";
+      x86_64-darwin = "1fd0fbyf05abivnp3igjlrm2axf65n2wdmg4aq6nqj60ipc01rvd";
     };
   };
 
diff --git a/pkgs/development/compilers/dmd/default.nix b/pkgs/development/compilers/dmd/default.nix
index 332ded31df6a..6cae1fa073b3 100644
--- a/pkgs/development/compilers/dmd/default.nix
+++ b/pkgs/development/compilers/dmd/default.nix
@@ -13,7 +13,7 @@ let
   dmdConfFile = writeTextFile {
       name = "dmd.conf";
       text = (lib.generators.toINI {} {
-        "Environment" = {
+        Environment = {
           DFLAGS = ''-I@out@/include/dmd -L-L@out@/lib -fPIC ${stdenv.lib.optionalString (!targetPackages.stdenv.cc.isClang) "-L--export-dynamic"}'';
         };
       });
diff --git a/pkgs/development/compilers/elm/packages/node-composition.nix b/pkgs/development/compilers/elm/packages/node-composition.nix
index fa0a1482f97a..7f20c74dbd4a 100644
--- a/pkgs/development/compilers/elm/packages/node-composition.nix
+++ b/pkgs/development/compilers/elm/packages/node-composition.nix
@@ -2,7 +2,7 @@
 
 {pkgs ? import <nixpkgs> {
     inherit system;
-  }, system ? builtins.currentSystem, nodejs ? pkgs."nodejs-10_x"}:
+  }, system ? builtins.currentSystem, nodejs ? pkgs.nodejs-10_x}:
 
 let
   nodeEnv = import ./node-env.nix {
diff --git a/pkgs/development/compilers/ghc/8.2.2-binary.nix b/pkgs/development/compilers/ghc/8.2.2-binary.nix
index 9fe3a7d9dba3..d68bf7e24b5e 100644
--- a/pkgs/development/compilers/ghc/8.2.2-binary.nix
+++ b/pkgs/development/compilers/ghc/8.2.2-binary.nix
@@ -29,23 +29,23 @@ stdenv.mkDerivation rec {
   name = "ghc-${version}-binary";
 
   src = fetchurl ({
-    "i686-linux" = {
+    i686-linux = {
       url = "http://haskell.org/ghc/dist/${version}/ghc-${version}-i386-deb8-linux.tar.xz";
       sha256 = "08w2ik55dp3n95qikmrflc91lsiq01xp53ki3jlhnbj8fqnxfrwy";
     };
-    "x86_64-linux" = {
+    x86_64-linux = {
       url = "http://haskell.org/ghc/dist/${version}/ghc-${version}-x86_64-deb8-linux.tar.xz";
       sha256 = "0ahv26304pqi3dm7i78si4pxwvg5f5dc2jwsfgvcrhcx5g30bqj8";
     };
-    "armv7l-linux" = {
+    armv7l-linux = {
       url = "http://haskell.org/ghc/dist/${version}/ghc-${version}-armv7-deb8-linux.tar.xz";
       sha256 = "1jmv8qmnh5bn324fivbwdcaj55kvw7cb2zq9pafmlmv3qwwx7s46";
     };
-    "aarch64-linux" = {
+    aarch64-linux = {
       url = "http://haskell.org/ghc/dist/${version}/ghc-${version}-aarch64-deb8-linux.tar.xz";
       sha256 = "1k2amylcp1ad67c75h1pqf7czf9m0zj1i7hdc45ghjklnfq9hrk7";
     };
-    "x86_64-darwin" = {
+    x86_64-darwin = {
       url = "http://haskell.org/ghc/dist/${version}/ghc-${version}-x86_64-apple-darwin.tar.xz";
       sha256 = "09swx71gh5habzbx55shz2xykgr96xkcy09nzinnm4z0yxicy3zr";
     };
diff --git a/pkgs/development/compilers/ghc/8.6.3-binary.nix b/pkgs/development/compilers/ghc/8.6.3-binary.nix
index 7e845da5b648..152bd5e4874c 100644
--- a/pkgs/development/compilers/ghc/8.6.3-binary.nix
+++ b/pkgs/development/compilers/ghc/8.6.3-binary.nix
@@ -29,15 +29,15 @@ stdenv.mkDerivation rec {
   name = "ghc-${version}-binary";
 
   src = fetchurl ({
-    "i686-linux" = {
+    i686-linux = {
       url = "http://haskell.org/ghc/dist/${version}/ghc-${version}-i386-deb8-linux.tar.xz";
       sha256 = "0bw8a7fxcbskf93rb4m542ff66vrmx5i5kj77qx37cbhijx70w5m";
     };
-    "x86_64-linux" = {
+    x86_64-linux = {
       url = "http://haskell.org/ghc/dist/${version}/ghc-${version}-x86_64-deb8-linux.tar.xz";
       sha256 = "1m9gaga2pzi2cx5gvasg0rx1dlvr68gmi20l67652kag6xjsa719";
     };
-    "x86_64-darwin" = {
+    x86_64-darwin = {
       url = "http://haskell.org/ghc/dist/${version}/ghc-${version}-x86_64-apple-darwin.tar.xz";
       sha256 = "1hbzk57v45176kxcx848p5jn5p1xbp2129ramkbzsk6plyhnkl3r";
     };
diff --git a/pkgs/development/compilers/go/1.11.nix b/pkgs/development/compilers/go/1.11.nix
index 56a386d8b97d..1e370342ba3c 100644
--- a/pkgs/development/compilers/go/1.11.nix
+++ b/pkgs/development/compilers/go/1.11.nix
@@ -17,13 +17,13 @@ let
   '';
 
   goarch = platform: {
-    "i686" = "386";
-    "x86_64" = "amd64";
-    "aarch64" = "arm64";
-    "arm" = "arm";
-    "armv5tel" = "arm";
-    "armv6l" = "arm";
-    "armv7l" = "arm";
+    i686 = "386";
+    x86_64 = "amd64";
+    aarch64 = "arm64";
+    arm = "arm";
+    armv5tel = "arm";
+    armv6l = "arm";
+    armv7l = "arm";
   }.${platform.parsed.cpu.name} or (throw "Unsupported system");
 
 in
diff --git a/pkgs/development/compilers/go/1.12.nix b/pkgs/development/compilers/go/1.12.nix
index 098870c98084..4560c94a64fd 100644
--- a/pkgs/development/compilers/go/1.12.nix
+++ b/pkgs/development/compilers/go/1.12.nix
@@ -17,13 +17,13 @@ let
   '';
 
   goarch = platform: {
-    "i686" = "386";
-    "x86_64" = "amd64";
-    "aarch64" = "arm64";
-    "arm" = "arm";
-    "armv5tel" = "arm";
-    "armv6l" = "arm";
-    "armv7l" = "arm";
+    i686 = "386";
+    x86_64 = "amd64";
+    aarch64 = "arm64";
+    arm = "arm";
+    armv5tel = "arm";
+    armv6l = "arm";
+    armv7l = "arm";
   }.${platform.parsed.cpu.name} or (throw "Unsupported system");
 
 in
diff --git a/pkgs/development/compilers/go/1.4.nix b/pkgs/development/compilers/go/1.4.nix
index 97c243439e89..1052f1f1ae1e 100644
--- a/pkgs/development/compilers/go/1.4.nix
+++ b/pkgs/development/compilers/go/1.4.nix
@@ -4,7 +4,7 @@
 , Security }:
 
 let
-  libc = if stdenv ? "cross" then libcCross else stdenv.cc.libc;
+  libc = if stdenv ? cross then libcCross else stdenv.cc.libc;
 in
 
 stdenv.mkDerivation rec {
diff --git a/pkgs/development/compilers/julia/shared.nix b/pkgs/development/compilers/julia/shared.nix
index c0414c6259fd..c706f2facec7 100644
--- a/pkgs/development/compilers/julia/shared.nix
+++ b/pkgs/development/compilers/julia/shared.nix
@@ -129,10 +129,10 @@ stdenv.mkDerivation rec {
   makeFlags =
     let
       arch = head (splitString "-" stdenv.system);
-      march = { "x86_64" = stdenv.hostPlatform.platform.gcc.arch or "x86-64"; "i686" = "pentium4"; }."${arch}"
+      march = { x86_64 = stdenv.hostPlatform.platform.gcc.arch or "x86-64"; i686 = "pentium4"; }.${arch}
               or (throw "unsupported architecture: ${arch}");
       # Julia requires Pentium 4 (SSE2) or better
-      cpuTarget = { "x86_64" = "x86-64"; "i686" = "pentium4"; }."${arch}"
+      cpuTarget = { x86_64 = "x86-64"; i686 = "pentium4"; }.${arch}
                   or (throw "unsupported architecture: ${arch}");
     in [
       "ARCH=${arch}"
diff --git a/pkgs/development/compilers/mozart/binary.nix b/pkgs/development/compilers/mozart/binary.nix
index 2067184a5b00..8eb35f1b5f7a 100644
--- a/pkgs/development/compilers/mozart/binary.nix
+++ b/pkgs/development/compilers/mozart/binary.nix
@@ -8,7 +8,7 @@ let
   version = "2.0.0";
 
   binaries = {
-    "x86_64-linux" = fetchurl {
+    x86_64-linux = fetchurl {
       url = "mirror://sourceforge/project/mozart-oz/v${version}-alpha.0/mozart2-${version}-alpha.0+build.4105.5c06ced-x86_64-linux.tar.gz";
       sha256 = "0rsfrjimjxqbwprpzzlmydl3z3aiwg5qkb052jixdxjyad7gyh5z";
     };
@@ -21,7 +21,7 @@ stdenv.mkDerivation {
 
   preferLocalBuild = true;
 
-  src = binaries."${stdenv.hostPlatform.system}" or (throw "unsupported system: ${stdenv.hostPlatform.system}"