qt: fx darwin build with latest xcode

src/qt.mk

@@ -20,6 +20,11 @@ define $(PKG)_UPDATE
 endef
 
 define $(PKG)_BUILD
+    # will likely break again soon so use sed instead of patches
+    $(SED) -i 's,mmacosx-version-min=10.[0-9],mmacosx-version-min=10.9,g' '$(1)/mkspecs//common/g++-macx.conf'
+    $(SED) -i 's,mmacosx-version-min=10.[0-9],mmacosx-version-min=10.9,g' '$(1)/configure'
+    $(SED) -i 's,MACOSX_DEPLOYMENT_TARGET = 10.[0-9],MACOSX_DEPLOYMENT_TARGET = 10.9,g' '$(1)/configure'
+    $(SED) -i 's,QMAKE_MACOSX_DEPLOYMENT_TARGET 10.[0-9],QMAKE_MACOSX_DEPLOYMENT_TARGET 10.9,g' '$(1)/configure'
     cd '$(1)' && QTDIR='$(1)' ./bin/syncqt
     cd '$(1)' && \
         OPENSSL_LIBS="`'$(TARGET)-pkg-config' --libs-only-l openssl`" \