diff --git a/pkgs/development/compilers/ghc/7.10.3.nix b/pkgs/development/compilers/ghc/7.10.3.nix
index 7d2f37916323..e4bf23c6e9e2 100644
--- a/pkgs/development/compilers/ghc/7.10.3.nix
+++ b/pkgs/development/compilers/ghc/7.10.3.nix
@@ -24,10 +24,6 @@
 , # Whether to build dynamic libs for the standard library (on the target
   # platform). Static libs are always built.
   enableShared ? true
-
-, # What flavour to build. An empty string indicates no
-  # specific flavour and falls back to ghc default values.
-  ghcFlavour ? stdenv.lib.optionalString (targetPlatform != hostPlatform) "perf-cross"
 }:
 
 assert !enableIntegerSimple -> gmp != null;
@@ -46,14 +42,11 @@ let
   };
 
   buildMK = ''
-    BuildFlavour = ${ghcFlavour}
-    ifneq \"\$(BuildFlavour)\" \"\"
-    include mk/flavours/\$(BuildFlavour).mk
-    endif
     DYNAMIC_GHC_PROGRAMS = ${if enableShared then "YES" else "NO"}
   '' + stdenv.lib.optionalString enableIntegerSimple ''
     INTEGER_LIBRARY = integer-simple
   '' + stdenv.lib.optionalString (targetPlatform != hostPlatform) ''
+    BuildFlavour = perf-cross
     Stage1Only = YES
     HADDOCK_DOCS = NO
   '' + stdenv.lib.optionalString enableRelocatedStaticLibs ''
@@ -75,6 +68,7 @@ let
   targetCC = builtins.head toolsForTarget;
 
 in
+
 stdenv.mkDerivation rec {
   version = "7.10.3";
   name = "${targetPrefix}ghc-${version}";
@@ -93,8 +87,6 @@ stdenv.mkDerivation rec {
     ./relocation.patch
   ];
 
-  postPatch = "patchShebangs .";
-
   # GHC is a bit confused on its cross terminology.
   preConfigure = ''
     for env in $(env | grep '^TARGET_' | sed -E 's|\+?=.*||'); do
@@ -111,7 +103,6 @@ stdenv.mkDerivation rec {
     export RANLIB="${targetCC.bintools.bintools}/bin/${targetCC.bintools.targetPrefix}ranlib"
     export READELF="${targetCC.bintools.bintools}/bin/${targetCC.bintools.targetPrefix}readelf"
     export STRIP="${targetCC.bintools.bintools}/bin/${targetCC.bintools.targetPrefix}strip"
-
     echo -n "${buildMK}" > mk/build.mk
     sed -i -e 's|-isysroot /Developer/SDKs/MacOSX10.5.sdk||' configure
   '' + stdenv.lib.optionalString (!stdenv.isDarwin) ''
@@ -144,8 +135,7 @@ stdenv.mkDerivation rec {
   crossConfig = true;
 
   nativeBuildInputs = [
-    perl libxml2 libxslt docbook_xsl docbook_xml_dtd_45 docbook_xml_dtd_42
-    ghc hscolour
+    ghc perl libxml2 libxslt docbook_xsl docbook_xml_dtd_45 docbook_xml_dtd_42 hscolour
   ];
 
   # For building runtime libs
diff --git a/pkgs/development/compilers/ghc/8.0.2.nix b/pkgs/development/compilers/ghc/8.0.2.nix
index 3ab44ea7f5e7..4017a01e7027 100644
--- a/pkgs/development/compilers/ghc/8.0.2.nix
+++ b/pkgs/development/compilers/ghc/8.0.2.nix
@@ -23,10 +23,6 @@
 , # Whether to build dynamic libs for the standard library (on the target
   # platform). Static libs are always built.
   enableShared ? true
-
-, # What flavour to build. An empty string indicates no
-  # specific flavour and falls back to ghc default values.
-  ghcFlavour ? stdenv.lib.optionalString (targetPlatform != hostPlatform) "perf-cross"
 }:
 
 assert !enableIntegerSimple -> gmp != null;
@@ -40,14 +36,11 @@ let
     "${targetPlatform.config}-";
 
   buildMK = ''
-    BuildFlavour = ${ghcFlavour}
-    ifneq \"\$(BuildFlavour)\" \"\"
-    include mk/flavours/\$(BuildFlavour).mk
-    endif
     DYNAMIC_GHC_PROGRAMS = ${if enableShared then "YES" else "NO"}
   '' + stdenv.lib.optionalString enableIntegerSimple ''
     INTEGER_LIBRARY = integer-simple
   '' + stdenv.lib.optionalString (targetPlatform != hostPlatform) ''
+    BuildFlavour = perf-cross
     Stage1Only = YES
     HADDOCK_DOCS = NO
   '' + stdenv.lib.optionalString enableRelocatedStaticLibs ''
@@ -94,8 +87,6 @@ stdenv.mkDerivation rec {
     ++ stdenv.lib.optional stdenv.isDarwin ./ghc-8.0.2-no-cpp-warnings.patch
     ++ stdenv.lib.optional stdenv.isDarwin ./backport-dylib-command-size-limit.patch;
 
-  postPatch = "patchShebangs .";
-
   # GHC is a bit confused on its cross terminology.
   preConfigure = ''
     for env in $(env | grep '^TARGET_' | sed -E 's|\+?=.*||'); do
@@ -112,7 +103,6 @@ stdenv.mkDerivation rec {
     export RANLIB="${targetCC.bintools.bintools}/bin/${targetCC.bintools.targetPrefix}ranlib"
     export READELF="${targetCC.bintools.bintools}/bin/${targetCC.bintools.targetPrefix}readelf"
     export STRIP="${targetCC.bintools.bintools}/bin/${targetCC.bintools.targetPrefix}strip"
-
     echo -n "${buildMK}" > mk/build.mk
     sed -i -e 's|-isysroot /Developer/SDKs/MacOSX10.5.sdk||' configure
   '' + stdenv.lib.optionalString (!stdenv.isDarwin) ''
@@ -144,10 +134,7 @@ stdenv.mkDerivation rec {
   # masss-rebuild.
   crossConfig = true;
 
-  nativeBuildInputs = [
-    perl sphinx
-    ghc hscolour
-  ];
+  nativeBuildInputs = [ ghc perl hscolour sphinx ];
 
   # For building runtime libs
   depsBuildTarget = toolsForTarget;
@@ -167,7 +154,7 @@ stdenv.mkDerivation rec {
   # zsh and other shells are smart about `{ghc}` but bash isn't, and doesn't
   # treat that as a unary `{x,y,z,..}` repetition.
   postInstall = ''
-    paxmark m $out/lib/${name}/bin/*
+    paxmark m $out/lib/${name}/bin/${if targetPlatform != hostPlatform then "ghc" else "{ghc,haddock}"}
 
     # Install the bash completion file.
     install -D -m 444 utils/completion/ghc.bash $out/share/bash-completion/completions/${targetPrefix}ghc
diff --git a/pkgs/development/compilers/ghc/8.2.2.nix b/pkgs/development/compilers/ghc/8.2.2.nix
index 592d5d3603fe..dcc2852a3413 100644
--- a/pkgs/development/compilers/ghc/8.2.2.nix
+++ b/pkgs/development/compilers/ghc/8.2.2.nix
@@ -23,11 +23,10 @@
 
 , # Whether to build dynamic libs for the standard library (on the target
   # platform). Static libs are always built.
-  enableShared ? true
-
-, # What flavour to build. An empty string indicates no
-  # specific flavour and falls back to ghc default values.
-  ghcFlavour ? stdenv.lib.optionalString (targetPlatform != hostPlatform) "perf-cross"
+  enableShared ?
+    !(targetPlatform.isDarwin
+      # On iOS, dynamic linking is not supported
+      && (targetPlatform.isAarch64 || targetPlatform.isAarch32))
 , # Whether to backport https://phabricator.haskell.org/D4388 for
   # deterministic profiling symbol names, at the cost of a slightly
   # non-standard GHC API
@@ -45,14 +44,11 @@ let
     "${targetPlatform.config}-";
 
   buildMK = ''
-    BuildFlavour = ${ghcFlavour}
-    ifneq \"\$(BuildFlavour)\" \"\"
-    include mk/flavours/\$(BuildFlavour).mk
-    endif
     DYNAMIC_GHC_PROGRAMS = ${if enableShared then "YES" else "NO"}
   '' + stdenv.lib.optionalString enableIntegerSimple ''
     INTEGER_LIBRARY = integer-simple
   '' + stdenv.lib.optionalString (targetPlatform != hostPlatform) ''
+    BuildFlavour = perf-cross
     Stage1Only = YES
     HADDOCK_DOCS = NO
     BUILD_SPHINX_HTML = NO
@@ -157,10 +153,7 @@ stdenv.mkDerivation rec {
   # masss-rebuild.
   crossConfig = true;
 
-  nativeBuildInputs = [
-    autoconf autoreconfHook automake perl python3 sphinx
-    ghc alex happy hscolour
-  ];
+  nativeBuildInputs = [ alex autoconf autoreconfHook automake ghc happy hscolour perl python3 sphinx ];
 
   # For building runtime libs
   depsBuildTarget = toolsForTarget;
@@ -182,7 +175,7 @@ stdenv.mkDerivation rec {
   # zsh and other shells are smart about `{ghc}` but bash isn't, and doesn't
   # treat that as a unary `{x,y,z,..}` repetition.
   postInstall = ''
-    paxmark m $out/lib/${name}/bin/*
+    paxmark m $out/lib/${name}/bin/${if targetPlatform != hostPlatform then "ghc" else "{ghc,haddock}"}
 
     # Install the bash completion file.
     install -D -m 444 utils/completion/ghc.bash $out/share/bash-completion/completions/${targetPrefix}ghc
diff --git a/pkgs/development/compilers/ghc/8.4.2.nix b/pkgs/development/compilers/ghc/8.4.2.nix
index 79244e46d1b6..5d8adafa9a7f 100644
--- a/pkgs/development/compilers/ghc/8.4.2.nix
+++ b/pkgs/development/compilers/ghc/8.4.2.nix
@@ -3,7 +3,7 @@
 
 # build-tools
 , bootPkgs, alex, happy
-, autoconf, automake, coreutils, fetchurl, fetchpatch, perl, python3, m4
+, autoconf, automake, coreutils, fetchurl, fetchpatch, perl, python3
 
 , libffi, libiconv ? null, ncurses
 
@@ -15,21 +15,16 @@
 
 , # If enabled, GHC will be built with the GPL-free but slower integer-simple
   # library instead of the faster but GPLed integer-gmp library.
-  enableIntegerSimple ? false, gmp ? null
+  enableIntegerSimple ? false, gmp ? null, m4
 
 , # If enabled, use -fPIC when compiling static libs.
   enableRelocatedStaticLibs ? targetPlatform != hostPlatform
 
 , # Whether to build dynamic libs for the standard library (on the target
   # platform). Static libs are always built.
-  enableShared ? !targetPlatform.isWindows && !targetPlatform.useAndroidPrebuilt
+  enableShared ? !targetPlatform.useAndroidPrebuilt
 
-, # Whetherto build terminfo.
-  enableTerminfo ? !targetPlatform.isWindows
-
-, # What flavour to build. An empty string indicates no
-  # specific flavour and falls back to ghc default values.
-  ghcFlavour ? stdenv.lib.optionalString (targetPlatform != hostPlatform) "perf-cross"
+, version ? "8.4.2"
 }:
 
 assert !enableIntegerSimple -> gmp != null;
@@ -43,14 +38,11 @@ let
     "${targetPlatform.config}-";
 
   buildMK = ''
-    BuildFlavour = ${ghcFlavour}
-    ifneq \"\$(BuildFlavour)\" \"\"
-    include mk/flavours/\$(BuildFlavour).mk
-    endif
     DYNAMIC_GHC_PROGRAMS = ${if enableShared then "YES" else "NO"}
   '' + stdenv.lib.optionalString enableIntegerSimple ''
     INTEGER_LIBRARY = integer-simple
   '' + stdenv.lib.optionalString (targetPlatform != hostPlatform) ''
+    BuildFlavour = perf-cross
     Stage1Only = YES
     HADDOCK_DOCS = NO
     BUILD_SPHINX_HTML = NO
@@ -63,9 +55,9 @@ let
   '';
 
   # Splicer will pull out correct variations
-  libDeps = platform: stdenv.lib.optional enableTerminfo [ ncurses ]
+  libDeps = platform: [ ncurses ]
     ++ stdenv.lib.optional (!enableIntegerSimple) gmp
-    ++ stdenv.lib.optional (platform.libc != "glibc" && !targetPlatform.isWindows) libiconv;
+    ++ stdenv.lib.optional (platform.libc != "glibc") libiconv;
 
   toolsForTarget =
     if hostPlatform == buildPlatform then
@@ -77,7 +69,7 @@ let
 
 in
 stdenv.mkDerivation rec {
-  version = "8.4.2";
+  inherit version;
   name = "${targetPrefix}ghc-${version}";
 
   src = fetchurl {
@@ -134,7 +126,7 @@ stdenv.mkDerivation rec {
     "--with-curses-includes=${ncurses.dev}/include" "--with-curses-libraries=${ncurses.out}/lib"
   ] ++ stdenv.lib.optional (targetPlatform == hostPlatform && ! enableIntegerSimple) [
     "--with-gmp-includes=${gmp.dev}/include" "--with-gmp-libraries=${gmp.out}/lib"
-  ] ++ stdenv.lib.optional (targetPlatform == hostPlatform && hostPlatform.libc != "glibc" && !targetPlatform.isWindows) [
+  ] ++ stdenv.lib.optional (targetPlatform == hostPlatform && hostPlatform.libc != "glibc") [
     "--with-iconv-includes=${libiconv}/include" "--with-iconv-libraries=${libiconv}/lib"
   ] ++ stdenv.lib.optionals (targetPlatform != hostPlatform) [
     "--enable-bootstrap-with-devel-snapshot"
@@ -152,10 +144,7 @@ stdenv.mkDerivation rec {
   # masss-rebuild.
   crossConfig = true;
 
-  nativeBuildInputs = [
-    perl autoconf automake m4 python3
-    ghc alex happy
-  ];
+  nativeBuildInputs = [ ghc perl autoconf automake m4 happy alex python3 ];
 
   # For building runtime libs
   depsBuildTarget = toolsForTarget;
@@ -177,7 +166,7 @@ stdenv.mkDerivation rec {
   # zsh and other shells are smart about `{ghc}` but bash isn't, and doesn't
   # treat that as a unary `{x,y,z,..}` repetition.
   postInstall = ''
-    paxmark m $out/lib/${name}/bin/*
+    paxmark m $out/lib/${name}/bin/${if targetPlatform != hostPlatform then "ghc" else "{ghc,haddock}"}
 
     # Install the bash completion file.
     install -D -m 444 utils/completion/ghc.bash $out/share/bash-completion/completions/${targetPrefix}ghc
diff --git a/pkgs/development/compilers/ghc/head.nix b/pkgs/development/compilers/ghc/head.nix
index ede25c7679a6..7e1c73d166a2 100644
--- a/pkgs/development/compilers/ghc/head.nix
+++ b/pkgs/development/compilers/ghc/head.nix
@@ -3,7 +3,7 @@
 
 # build-tools
 , bootPkgs, alex, happy
-, autoconf, automake, coreutils, fetchgit, perl, python3, m4
+, autoconf, automake, coreutils, fetchgit, perl, python3
 
 , libffi, libiconv ? null, ncurses
 
@@ -22,15 +22,9 @@
 
 , # Whether to build dynamic libs for the standard library (on the target
   # platform). Static libs are always built.
-  enableShared ? !targetPlatform.isWindows && !targetPlatform.useAndroidPrebuilt
-
-, # Whetherto build terminfo.
-  enableTerminfo ? !targetPlatform.isWindows
+  enableShared ? !targetPlatform.useAndroidPrebuilt
 
 , version ? "8.5.20180118"
-, # What flavour to build. An empty string indicates no
-  # specific flavour and falls back to ghc default values.
-  ghcFlavour ? stdenv.lib.optionalString (targetPlatform != hostPlatform) "perf-cross"
 }:
 
 assert !enableIntegerSimple -> gmp != null;
@@ -44,14 +38,11 @@ let
     "${targetPlatform.config}-";
 
   buildMK = ''
-    BuildFlavour = ${ghcFlavour}
-    ifneq \"\$(BuildFlavour)\" \"\"
-    include mk/flavours/\$(BuildFlavour).mk
-    endif
     DYNAMIC_GHC_PROGRAMS = ${if enableShared then "YES" else "NO"}
   '' + stdenv.lib.optionalString enableIntegerSimple ''
     INTEGER_LIBRARY = integer-simple
   '' + stdenv.lib.optionalString (targetPlatform != hostPlatform) ''
+    BuildFlavour = perf-cross
     Stage1Only = YES
     HADDOCK_DOCS = NO
     BUILD_SPHINX_HTML = NO
@@ -64,9 +55,9 @@ let
   '';
 
   # Splicer will pull out correct variations
-  libDeps = platform: stdenv.lib.optional enableTerminfo [ ncurses ]
+  libDeps = platform: [ ncurses ]
     ++ stdenv.lib.optional (!enableIntegerSimple) gmp
-    ++ stdenv.lib.optional (platform.libc != "glibc" && !targetPlatform.isWindows) libiconv;
+    ++ stdenv.lib.optional (platform.libc != "glibc") libiconv;
 
   toolsForTarget =
     if hostPlatform == buildPlatform then
@@ -132,7 +123,7 @@ stdenv.mkDerivation rec {
     "--with-curses-includes=${ncurses.dev}/include" "--with-curses-libraries=${ncurses.out}/lib"
   ] ++ stdenv.lib.optional (targetPlatform == hostPlatform && ! enableIntegerSimple) [
     "--with-gmp-includes=${gmp.dev}/include" "--with-gmp-libraries=${gmp.out}/lib"
-  ] ++ stdenv.lib.optional (targetPlatform == hostPlatform && hostPlatform.libc != "glibc" && !targetPlatform.isWindows) [
+  ] ++ stdenv.lib.optional (targetPlatform == hostPlatform && hostPlatform.libc != "glibc") [
     "--with-iconv-includes=${libiconv}/include" "--with-iconv-libraries=${libiconv}/lib"
   ] ++ stdenv.lib.optionals (targetPlatform != hostPlatform) [
     "--enable-bootstrap-with-devel-snapshot"
@@ -150,10 +141,7 @@ stdenv.mkDerivation rec {
   # masss-rebuild.
   crossConfig = true;
 
-  nativeBuildInputs = [
-    perl autoconf automake m4 python3
-    ghc alex happy
-  ];
+  nativeBuildInputs = [ ghc perl autoconf automake happy alex python3 ];
 
   # For building runtime libs
   depsBuildTarget = toolsForTarget;
@@ -175,7 +163,7 @@ stdenv.mkDerivation rec {
   # zsh and other shells are smart about `{ghc}` but bash isn't, and doesn't
   # treat that as a unary `{x,y,z,..}` repetition.
   postInstall = ''
-    paxmark m $out/lib/${name}/bin/*
+    paxmark m $out/lib/${name}/bin/${if targetPlatform != hostPlatform then "ghc" else "{ghc,haddock}"}
 
     # Install the bash completion file.
     install -D -m 444 utils/completion/ghc.bash $out/share/bash-completion/completions/${targetPrefix}ghc
diff --git a/pkgs/development/haskell-modules/configuration-nix.nix b/pkgs/development/haskell-modules/configuration-nix.nix
index 2f1eb1ad97a8..469b249010fa 100644
--- a/pkgs/development/haskell-modules/configuration-nix.nix
+++ b/pkgs/development/haskell-modules/configuration-nix.nix
@@ -128,7 +128,7 @@ self: super: builtins.intersectAttrs super {
 
   # Prevents needing to add security_tool as a build tool to all of x509-system's
   # dependencies.
-  x509-system = if pkgs.stdenv.targetPlatform.isDarwin && !pkgs.stdenv.cc.nativeLibc
+  x509-system = if pkgs.stdenv.isDarwin && !pkgs.stdenv.cc.nativeLibc
     then let inherit (pkgs.darwin) security_tool;
       in pkgs.lib.overrideDerivation (addBuildDepend super.x509-system security_tool) (drv: {
         postPatch = (drv.postPatch or "") + ''
diff --git a/pkgs/development/haskell-modules/generic-builder.nix b/pkgs/development/haskell-modules/generic-builder.nix
index 99c85ac688a5..3ab77c42cbba 100644
--- a/pkgs/development/haskell-modules/generic-builder.nix
+++ b/pkgs/development/haskell-modules/generic-builder.nix
@@ -19,7 +19,6 @@ in
 , buildTarget ? ""
 , buildTools ? [], libraryToolDepends ? [], executableToolDepends ? [], testToolDepends ? [], benchmarkToolDepends ? []
 , configureFlags ? []
-, buildFlags ? []
 , description ? ""
 , doCheck ? !isCross && (stdenv.lib.versionOlder "7.4" ghc.version)
 , doBenchmark ? false
@@ -32,7 +31,7 @@ in
 , enableSharedExecutables ? false
 , enableSharedLibraries ? ((ghc.isGhcjs or false) || stdenv.lib.versionOlder "7.7" ghc.version)
 , enableDeadCodeElimination ? (!stdenv.isDarwin)  # TODO: use -dead_strip for darwin
-, enableStaticLibraries ? !hostPlatform.isWindows
+, enableStaticLibraries ? true
 , enableHsc2hsViaAsm ? hostPlatform.isWindows && stdenv.lib.versionAtLeast ghc.version "8.4"
 , extraLibraries ? [], librarySystemDepends ? [], executableSystemDepends ? []
 , homepage ? "http://hackage.haskell.org/package/${pname}"
@@ -69,10 +68,6 @@ in
 
 assert editedCabalFile != null -> revision != null;
 
-# --enable-static does not work on windows. This is a bug in GHC.
-# --enable-static will pass -staticlib to ghc, which only works for mach-o and elf.
-assert hostPlatform.isWindows -> enableStaticLibraries == false;
-
 let
 
   inherit (stdenv.lib) optional optionals optionalString versionOlder versionAtLeast
@@ -131,8 +126,6 @@ let
   crossCabalFlagsString =
     stdenv.lib.optionalString isCross (" " + stdenv.lib.concatStringsSep " " crossCabalFlags);
 
-  buildFlagsString = optionalString (buildFlags != []) (" " + concatStringsSep " " buildFlags);
-
   defaultConfigureFlags = [
     "--verbose" "--prefix=$out" "--libdir=\\$prefix/lib/\\$compiler" "--libsubdir=\\$pkgid"
     (optionalString enableSeparateDataOutput "--datadir=$data/share/${ghc.name}")
@@ -176,22 +169,18 @@ let
                         optionals doCheck testPkgconfigDepends ++ optionals doBenchmark benchmarkPkgconfigDepends;
 
   nativeBuildInputs = [ ghc nativeGhc removeReferencesTo ] ++ optional (allPkgconfigDepends != []) pkgconfig ++
-                      setupHaskellDepends ++
                       buildTools ++ libraryToolDepends ++ executableToolDepends;
   propagatedBuildInputs = buildDepends ++ libraryHaskellDepends ++ executableHaskellDepends;
-  otherBuildInputs = extraLibraries ++ librarySystemDepends ++ executableSystemDepends ++
+  otherBuildInputs = setupHaskellDepends ++ extraLibraries ++ librarySystemDepends ++ executableSystemDepends ++
                      optionals (allPkgconfigDepends != []) allPkgconfigDepends ++
                      optionals doCheck (testDepends ++ testHaskellDepends ++ testSystemDepends ++ testToolDepends) ++
                      optionals doBenchmark (benchmarkDepends ++ benchmarkHaskellDepends ++ benchmarkSystemDepends ++ benchmarkToolDepends);
-
   allBuildInputs = propagatedBuildInputs ++ otherBuildInputs;
 
   haskellBuildInputs = stdenv.lib.filter isHaskellPkg allBuildInputs;
   systemBuildInputs = stdenv.lib.filter isSystemPkg allBuildInputs;
 
-  # When not cross compiling, also include Setup.hs dependencies.
-  ghcEnv = ghc.withPackages (p:
-    haskellBuildInputs ++ stdenv.lib.optional (!isCross) setupHaskellDepends);
+  ghcEnv = ghc.withPackages (p: haskellBuildInputs);
 
   setupCommand = "./Setup";
 
@@ -201,22 +190,6 @@ let
 
   nativeGhcCommand = "${nativeGhc.targetPrefix}ghc";
 
-  buildPkgDb = ghcName: ''
-    if [ -d "$p/lib/${ghcName}/package.conf.d" ]; then
-      cp -f "$p/lib/${ghcName}/package.conf.d/"*.conf $packageConfDir/
-      continue
-    fi
-    if [ -d "$p/include" ]; then
-      configureFlags+=" --extra-include-dirs=$p/include"
-    fi
-    if [ -d "$p/lib" ]; then
-      configureFlags+=" --extra-lib-dirs=$p/lib"
-    fi
-    if [[ -d "$p/Library/Frameworks" ]]; then
-      configureFlags+=" --extra-framework-dirs=$p/Library/Frameworks"
-    fi
-  '';
-
 in
 
 assert allPkgconfigDepends != [] -> pkgconfig != null;
@@ -257,37 +230,30 @@ stdenv.mkDerivation ({
     echo "Build with ${ghc}."
     ${optionalString (hasActiveLibrary && hyperlinkSource) "export PATH=${hscolour}/bin:$PATH"}
 
-  '' + (optionalString (setupHaskellDepends != []) ''
-    setupPackageConfDir="$TMPDIR/setup-package.conf.d"
-    mkdir -p $setupPackageConfDir
-  '') + ''
     packageConfDir="$TMPDIR/package.conf.d"
     mkdir -p $packageConfDir
 
     setupCompileFlags="${concatStringsSep " " setupCompileFlags}"
     configureFlags="${concatStringsSep " " defaultConfigureFlags} $configureFlags"
-  ''
-  # We build the Setup.hs on the *build* machine, and as such should only add
-  # dependencies for the build machine.
-  #
-  # pkgs* arrays defined in stdenv/setup.hs
-  + (optionalString (setupHaskellDepends != []) ''
-    for p in "''${pkgsBuildBuild[@]}" "''${pkgsBuildHost[@]}" "''${pkgsBuildTarget[@]}"; do
-      ${buildPkgDb nativeGhc.name}
-    done
-    ${nativeGhcCommand}-pkg --${nativePackageDbFlag}="$setupPackageConfDir" recache
-  '')
 
-    # For normal components
-  + ''
+    # host.*Pkgs defined in stdenv/setup.hs
     for p in "''${pkgsHostHost[@]}" "''${pkgsHostTarget[@]}"; do
-      ${buildPkgDb ghc.name}
+      if [ -d "$p/lib/${ghc.name}/package.conf.d" ]; then
+        cp -f "$p/lib/${ghc.name}/package.conf.d/"*.conf $packageConfDir/
+        continue
+      fi
+      if [ -d "$p/include" ]; then
+        configureFlags+=" --extra-include-dirs=$p/include"
+      fi
+      if [ -d "$p/lib" ]; then
+        configureFlags+=" --extra-lib-dirs=$p/lib"
+      fi
     done
   ''
   # only use the links hack if we're actually building dylibs. otherwise, the
   # "dynamic-library-dirs" point to nonexistent paths, and the ln command becomes
   # "ln -s $out/lib/links", which tries to recreate the links dir and fails
-  + (optionalString (stdenv.isDarwin && (enableSharedLibraries || enableSharedExecutables)) ''
+  + (optionalString (stdenv.isDarwin && enableSharedLibraries) ''
     # Work around a limit in the macOS Sierra linker on the number of paths
     # referenced by any one dynamic library:
     #
@@ -316,11 +282,7 @@ stdenv.mkDerivation ({
     done
 
     echo setupCompileFlags: $setupCompileFlags
-    ${optionalString (setupHaskellDepends != [])
-       ''
-       echo GHC_PACKAGE_PATH="$setupPackageConfDir:"
-       GHC_PACKAGE_PATH="$setupPackageConfDir:" ''
-    }${nativeGhcCommand} $setupCompileFlags --make -o Setup -odir $TMPDIR -hidir $TMPDIR $i
+    ${nativeGhcCommand} $setupCompileFlags --make -o Setup -odir $TMPDIR -hidir $TMPDIR $i
 
     runHook postCompileBuildDriver
   '';
@@ -348,7 +310,7 @@ stdenv.mkDerivation ({
 
   buildPhase = ''
     runHook preBuild
-    ${setupCommand} build ${buildTarget}${crossCabalFlagsString}${buildFlagsString}
+    ${setupCommand} build ${buildTarget}${crossCabalFlagsString}
     runHook postBuild
   '';
 
diff --git a/pkgs/development/haskell-modules/lib.nix b/pkgs/development/haskell-modules/lib.nix
index fb1302f60ea5..55e45bd6559d 100644
--- a/pkgs/development/haskell-modules/lib.nix
+++ b/pkgs/development/haskell-modules/lib.nix
@@ -131,8 +131,6 @@ rec {
    */
   appendConfigureFlag = drv: x: overrideCabal drv (drv: { configureFlags = (drv.configureFlags or []) ++ [x]; });
 
-  appendBuildFlag = drv: x: overrideCabal drv (drv: { buildFlags = (drv.buildFlags or []) ++ [x]; });
-  appendBuildFlags = drv: xs: overrideCabal drv (drv: { buildFlags = (drv.buildFlags or []) ++ xs; });
   /* removeConfigureFlag drv x is a Haskell package like drv, but with
      all cabal configure arguments that are equal to x removed.