Merge bitcoin#11995: [depends] Fix Qt build with Xcode 9

2b1f794 [Depends] Fix Qt build with Xcode 9.2 (fanquake)

Pull request description:

  Building Qt in depends is currently broken with versions of Xcode > 9.0 (on both 10.12.x and 10.13.x). We'll bump our Clang/Qt/SDK again soon, however this fixes building in the interim.

  Fixes bitcoin#11461
  Related upstream issues: https://bugreports.qt.io/browse/QTBUG-63401, https://bugreports.qt.io/browse/QTBUG-62266.

Tree-SHA512: b1aaa50580c5180bbae2d79f5618c145667edd824b66c20851c7346674a1700267d6df249ba559d781941def312f7867bc3950f673e9128ffd4beda2965ca639

depends/packages/qt.mk

@@ -8,7 +8,7 @@ $(package)_dependencies=openssl zlib
 $(package)_linux_dependencies=freetype fontconfig libxcb libX11 xproto libXext
 $(package)_build_subdir=qtbase
 $(package)_qt_libs=corelib network widgets gui plugins testlib
-$(package)_patches=mac-qmake.conf mingw-uuidof.patch pidlist_absolute.patch fix-xcb-include-order.patch
+$(package)_patches=mac-qmake.conf mingw-uuidof.patch pidlist_absolute.patch fix-xcb-include-order.patch fix-cocoahelpers-macos.patch
 $(package)_patches+=fix_qt_configure.patch fix_qt_pkgconfig.patch fix-cocoahelpers-macos.patch qfixed-coretext.patch
 # NOTE: fix_qt_configure.patch is only needed for Qt 5.7, newer versions don't have this issue.
 # Remove it after bumping $(package)_version to 5.8+.
@@ -147,6 +147,7 @@ define $(package)_preprocess_cmds
   patch -p1 < $($(package)_patch_dir)/fix_qt_pkgconfig.patch && \
   patch -p1 < $($(package)_patch_dir)/fix-cocoahelpers-macos.patch && \
   patch -p1 < $($(package)_patch_dir)/qfixed-coretext.patch && \
+  patch -p1 < $($(package)_patch_dir)/fix-cocoahelpers-macos.patch && \
   echo "!host_build: QMAKE_CFLAGS     += $($(package)_cflags) $($(package)_cppflags)" >> qtbase/mkspecs/common/gcc-base.conf && \
   echo "!host_build: QMAKE_CXXFLAGS   += $($(package)_cxxflags) $($(package)_cppflags)" >> qtbase/mkspecs/common/gcc-base.conf && \
   echo "!host_build: QMAKE_LFLAGS     += $($(package)_ldflags)" >> qtbase/mkspecs/common/gcc-base.conf && \