qt510: disable framework build on macOS

We prefer to have $out/include & $out/lib installed so that things
like multiple outputs can work. There is no way to do this in Qt
currently without also disabling the ‘framework’ install. Not sure if
this will break anything but it will fix issues we run into on some
projects like python2.7-pyside:

Linux: https://hydra.nixos.org/build/73219181
macOS: https://hydra.nixos.org/build/73059550

Hopefully this gives us consistency between the two.

pkgs/development/libraries/qt-5/5.10/default.nix

@@ -37,9 +37,7 @@ let
   srcs = import ./srcs.nix { inherit fetchurl; inherit mirror; };
 
   patches = {
-    qtbase = [ ./qtbase.patch ] ++
-      optionals stdenv.isDarwin [ ./qtbase-darwin.patch
-                                  ./restore-pc-files.patch ];
+    qtbase = [ ./qtbase.patch ./qtbase-darwin.patch ];
     qtdeclarative = [ ./qtdeclarative.patch ];
     qtscript = [ ./qtscript.patch ];
     qtserialport = [ ./qtserialport.patch ];

pkgs/development/libraries/qt-5/5.10/restore-pc-files.patch

@@ -1,27 +0,0 @@
-diff --git a/mkspecs/features/qt_module.prf b/mkspecs/features/qt_module.prf
-index e6a0d97f1a..b50ce77d51 100644
---- a/mkspecs/features/qt_module.prf
-+++ b/mkspecs/features/qt_module.prf
-@@ -266,7 +266,7 @@ load(qt_installs)
- load(qt_targets)
- 
- # this builds on top of qt_common
--!internal_module:!lib_bundle:if(unix|mingw) {
-+!internal_module:if(unix|mingw) {
-     CONFIG += create_pc
-     QMAKE_PKGCONFIG_DESTDIR = pkgconfig
-     host_build: \
-diff --git a/mkspecs/features/qt_module_headers.prf b/mkspecs/features/qt_module_headers.prf
-index 62b88c6fe2..f302f1e202 100644
---- a/mkspecs/features/qt_module_headers.prf
-+++ b/mkspecs/features/qt_module_headers.prf
-@@ -102,8 +102,7 @@ git_build: \
- else: \
-     INC_PATH = $$MODULE_BASE_INDIR
- include($$INC_PATH/include/$$MODULE_INCNAME/headers.pri, "", true)
--!lib_bundle: \  # Headers are embedded into the bundle, so don't install them separately.
--    CONFIG += qt_install_headers
-+CONFIG += qt_install_headers
- 
- alien_syncqt: return()
- 

pkgs/development/libraries/qt-5/mkDerivation.nix

@@ -16,6 +16,9 @@ let
       optional (!debug) "-DQT_NO_DEBUG"
       ++ lib.toList (args.NIX_CFLAGS_COMPILE or []);
 
+    configureFlags = [ "-no-framework" ]
+                  ++ (args.configureFlags or []);
+
     cmakeFlags =
       (args.cmakeFlags or [])
       ++ [